BRAKE CONTROL SYSTEM SECTION BRC CONTENTS BRAKES BRC-1 VDC/TCS/ABS BASIC INSPECTION... 5 COMPONENT DIAGNOSIS...57 FUNCTION DIAGNOSIS...

Transcription

1 RKES SETION R RKE ONTROL SYSTEM ONTENTS E V/TS/S SI INSPETION... 5 IGNOSIS N REPIR WORKFLOW... 5 Work Flow...5 INSPETION N JUSTMENT... 7 PERFORM INITILIZTION OF LINER SOLE- NOI VLVE N LIRTION...7 PERFORM INITILIZTION OF LINER SOLE- NOI VLVE N LIRTION : escription...7 PERFORM INITILIZTION OF LINER SOLE- NOI VLVE N LIRTION : Special Repair Requirement...7 PERFORM ZERO POINT OF YW RTE/SIE/ EEL G SENSOR...8 PERFORM ZERO POINT OF YW RTE/SIE/ EEL G SENSOR : escription...8 PERFORM ZERO POINT OF YW RTE/SIE/ EEL G SENSOR : Special Repair Requirement...8 PERFORM JUSTMENT OF STROKE SENSOR...9 PERFORM JUSTMENT OF STROKE SEN- SOR : escription...9 PERFORM JUSTMENT OF STROKE SEN- SOR : Special Repair Requirement...9 PERFORM ZERO POINT OF STEERING NGLE SENSOR...9 PERFORM ZERO POINT OF STEERING NGLE SENSOR : escription...9 PERFORM ZERO POINT OF STEERING NGLE SENSOR : Special Repair Requirement...9 SI INSPETION...11 TEST MOE PROEURE...11 FUNTION IGNOSIS...14 ELETRONILLY ONTROLLE RKE SYSTEM...14 System iagram...14 System escription...14 omponent Parts Location...15 omponent escription...17 S...20 System iagram...20 System escription...20 omponent Parts Location...21 omponent escription...23 E...26 System iagram...26 System escription...26 omponent Parts Location...27 omponent escription...29 TS...32 System iagram...32 System escription...32 omponent Parts Location...33 omponent escription...35 V...38 System iagram...38 System escription...38 omponent Parts Location...39 omponent escription...41 INSPETION MOE...44 System escription...44 IGNOSIS SYSTEM (V/TS/S ON- TROL UNIT)...45 ONSULT-III Function...45 OMPONENT IGNOSIS , 0205, 1271, escription...57 R G H I J K L M N O P R-1

2 T Logic iagnosis Procedure Special Repair Requirement , 0215, 1273, escription T Logic iagnosis Procedure Special Repair Requirement , 1234, 1232, 1243, 1244, 1245, 1279, escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement , escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement , 1236, 1238, 1239, 1275, 1276, 1277, escription T Logic iagnosis Procedure Special Repair Requirement , escription T Logic iagnosis Procedure Special Repair Requirement , 1281, escription T Logic iagnosis Procedure Special Repair Requirement , 1346, escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement , escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement , escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement , 1312, 1313, escription T Logic iagnosis Procedure Special Repair Requirement , 1316, 1352, 1353, 1354, 1355, 1356, 1357, 1358, escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement , 1342, 1343, escription T Logic iagnosis Procedure Special Repair Requirement , R-2

3 escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement escription T Logic iagnosis Procedure Special Repair Requirement U0073, U0123, U0124, U0126, U escription T Logic iagnosis Procedure EU IGNOSIS S TUTOR N ELETRI UNIT (ONTROL UNIT) Reference Value Wiring iagram - RKE ONTROL SYSTEM T Index SYMPTOM IGNOSIS V/TS/S SYMPTOMS Symptom Table S WRNING LMP REMINS ON escription iagnosis Procedure S WRNING LMP OES NOT OME ON escription iagnosis Procedure V WRNING LMP REMINS ON escription iagnosis Procedure V WRNING LMP OES NOT OME ON R-3 escription iagnosis Procedure RKE WRNING LMP REMINS ON escription iagnosis Procedure RKE WRNING LMP OES NOT OME ON escription iagnosis Procedure ELETRONILLY ONTROLLE RKE WRNING LMP REMINS ON escription iagnosis Procedure ELETRONILLY ONTROLLE RKE WRNING LMP OES NOT OME ON escription iagnosis Procedure SLIP INITOR LMP REMINS ON escription iagnosis Procedure SLIP INITOR LMP OES NOT OME ON escription iagnosis Procedure RKE WRNING UZZER IRUIT escription iagnosis Procedure PREUTION PREUTIONS Precaution for Supplemental Restraint System (SRS) "IR G" and "SET ELT PRE-TEN- SIONER" Precautions For High-Voltage System Precautions for Inspecting the Hybrid ontrol System Electronically ontrolled rake System PREPRTION PREPRTION Special Service Tool ommercial Service Tool ON-VEHILE MINTENNE RKE EU Inspection RKE TUTOR Inspection WHEEL SENSOR Inspection E R G H I J K L M N O P

4 S RELY NO. 1 N NO Inspection S MOTOR RELY NO. 1 N NO Inspection ON-VEHILE REPIR RKE EU Exploded View Removal and Installation RKE TUTOR Exploded View Removal and Installation isposal WHEEL SENSOR Exploded View Removal and Installation SENSOR ROTOR Removal and Installation YW RTE/SIE/EEL G SENSOR Removal and Installation STEERING NGLE SENSOR Removal and Installation RKE WRNING UZZER Removal and Installation PITOR Exploded View Removal and Installation RKE STROKE SENSOR Exploded View Removal and Installation RKE SIMULTOR Exploded View Removal and Installation isassembly and ssembly R-4

5 IGNOSIS N REPIR WORKFLOW < SI INSPETION > [V/TS/S] SI INSPETION IGNOSIS N REPIR WORKFLOW Work Flow *: Use the ONSULT-III. 1.VEHILE ROUGHT TO WORKSHOP Vehicle brought to workshop. >> GO TO 2. 2.USTOMER PROLEM NLYSIS Interview the customer and confirm the trouble. INFOI: >> GO TO 3. 3.HEK T N FREEZE FRME T* 1. heck and record a T and Freeze Frame ata. 2. lear the T and Freeze Frame ata. 3. Reconfirm the T. - Reconfirm the T based on the recorded T and Freeze Frame ata. If any of the Ts U0123, U0124, U0126, and U0293 is output together with a N communication T, first check the appropriate sensor for a momentary open circuit. ondition T is output. T is not output (Problem symptom does not occur). T is not output (Problem symptom occurs). >> GO TO 4. >> GO TO 5. >> GO TO 6. 4.IGNOSTI TROULE OE HRT Proceed to iagnostic Trouble ode hart. >> GO TO 7. 5.SYMPTOM SIMULTION Proceed to iagnostic System. >> GO TO 6. 6.PROLEM SYMPTOM TLE Proceed to Problem Symptom Table. Proceed to E R G H I J K L M N O P >> GO TO 7. 7.IRUIT INSPETION* ircuit inspection. >> GO TO 8. R-5

6 IGNOSIS N REPIR WORKFLOW < SI INSPETION > [V/TS/S] 8.IENTIFITION OF PROLEM Identification of problem. >> GO TO 9. 9.REPIR OR REPLEMENT Repair or replacement. >> GO TO ONFIRMTION TEST* onfirmation test. >> EN R-6

7 INSPETION N JUSTMENT < SI INSPETION > [V/TS/S] INSPETION N JUSTMENT PERFORM INITILIZTION OF LINER SOLENOI VLVE N LIRTION PERFORM INITILIZTION OF LINER SOLENOI VLVE N LIRTION : escription INFOI: Perform initialization of linear solenoid valve and calibration when the brake EU, brake actuator or brake stroke sensor is replaced. Follow the procedure to perform initialization. If there is a problem with the auxiliary battery (12 V) voltage, initialization of linear solenoid valve and calibration cannot be completed normally. Make sure to check the auxiliary battery voltage before performing initialization of linear solenoid valve and calibration. If the actuator s temperature is high, initialization of linear solenoid valve and calibration may not be completed normally. In such a case, wait until the temperature decreases and then perform initialization of linear solenoid valve and calibration. If the ignition switch is turned OFF, the brake pedal is operated or vehicle speed is input while the linear solenoid valve offset learning is being performed, the learning will be cancelled. rake EU rake actuator assembly rake stroke sensor rake pedal Replacement parts Necessary operation 1. Initialization of linear solenoid valve and calibration 2. Steering angle sensor zero point calibration 1. leed air 2. learing stored value of linear solenoid valve and calibration data 3. Initialization of linear solenoid valve and calibration 1. Inspection and adjustment of brake pedal height 2. learing stored value of linear solenoid valve and calibration data 3. Initialization of linear solenoid valve and calibration PERFORM INITILIZTION OF LINER SOLENOI VLVE N LIRTION : Special Repair Requirement INFOI: lear the stored value of linear solenoid valve and calibration data. a. Turn the ignition switch OFF. b. onnect the ONSULT-III. c. Move the shift lever to the P position. d. Turn the ignition switch ON with the brake pedal released. e. lear the stored value of initialization of linear solenoid valve and calibration. Refer to R-45, "ON- SULT-III Function". f. Using the ONSULT-III, perform initialization of linear solenoid valve and calibration. 2. Perform the initialization of linear solenoid valve and calibration. a. Turn the ignition switch OFF. b. onnect the ONSULT-III. c. Move the shift lever to the P position. d. Turn the ignition switch ON (REY) with the brake pedal depressed. If the linear solenoid valve offset learning is performed without turning the ignition switch ON, the learning process may not be completed properly because of insufficient auxiliary battery voltage. When the linear solenoid valve offset learning is interrupted, or the learning process is performed with the shift lever not in the P position, T 1345 will be stored. e. Select TEST MOE in WORK SOPPORT to start TEST MOE. f. Leave the vehicle stationary without depressing the brake pedal for 1 or 2 minutes. g. heck that the interval between blinks of the Electronically ontrolled rake warning lamp changes from 1 second to 0.5 seconds. E R G H I J K L M N O P R-7

8 INSPETION N JUSTMENT < SI INSPETION > [V/TS/S] While the linear solenoid valve is learning, the Electronically ontrolled rake warning lamp blinks at intervals of 1 second. It blinks at intervals of 0.5 seconds after the completion of the learning. The time needed to complete initialization of linear solenoid valve and calibration varies depending on auxiliary battery voltage. The Electronically ontrolled rake warning lamp blinks at 1 second intervals during initialization of linear solenoid valve. The Electronically ontrolled rake warning lamp blinks 0.25 seconds intervals if the ONSULT-III prompts. h. Select TEST MOE EN. PERFORM ZERO POINT OF YW RTE/SIE/EEL G SENSOR PERFORM ZERO POINT OF YW RTE/SIE/EEL G SENSOR : escription INFOI: fter replacing the V relevant components or performing Front wheel alignment adjustment, clear and read the sensor calibration data. Follow the chart to perform calibration. Replacing parts/ operation Necessary operation rake EU Yaw rate/side/decel G sensor Yaw rate/side/decel G sensor zero point calibration 1. learing zero point calibration data 2. Yaw rate/side/decel G sensor zero point calibration Front wheel alignment adjustment PERFORM ZERO POINT OF YW RTE/SIE/EEL G SENSOR : Special Repair Requirement INFOI: UTION: While obtaining the zero point, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. e sure to perform this procedure on a level surface (with an inclination of less than 1 degree). 1. lear the zero point calibration data. a. Turn the ignition switch OFF. b. onnect the ONSULT-III. c. heck that the steering wheel is centered and move the shift lever to the P position. d. Turn the ignition switch ON with the brake pedal released. e. Operate the ONSULT-III to erase the codes. f. Turn the ignition switch OFF. 2. Perform zero point calibration of the yaw rate/side/decel G sensor. a. Turn the ignition switch OFF. b. heck that the steering wheel is centered and move the shift lever to the P position. UTION: Ts 1210 and 1336 will be recorded if the shift lever is not in the P position. c. onnect the ONSULT-III. d. Turn the ignition switch ON (REY) with the brake pedal depressed. e. Select TEST MOE in WORK SUPPORT to start TEST MOE. f. Leave the vehicle stationary without depressing the brake pedal for 1 or 2 minutes. g. heck that the interval between blinks of the Electronically ontrolled rake warning lamp changes from 1 second to 0.5 seconds. The zero point calibration is performed only once after the system enters the Test Mode. alibration cannot be performed again until the stored data is cleared. h. Select TEST MOE EN. i. Turn the ignition switch OFF and disconnect the ONSULT-III. j. Perform the zero point of steering angle sensor. R-8 1. learing zero point calibration data 2. Yaw rate/side/decel G sensor zero point calibration

9 INSPETION N JUSTMENT < SI INSPETION > [V/TS/S] PERFORM JUSTMENT OF STROKE SENSOR PERFORM JUSTMENT OF STROKE SENSOR : escription fter removing or adjusting brake stroke sensor, adjustments are necessary. INFOI: PERFORM JUSTMENT OF STROKE SENSOR : Special Repair Requirement INFOI: lear the stored value of stroke sensor data. a. onnect the connector to the brake stroke sensor. b. onnect the ONSULT-III with the ignition switch OFF. c. Turn the ignition switch ON. d. Reading the STROKE SEN value shown in the T MONITOR, slowly turn the brake stroke sensor to the right and left to adjust the value to the standard voltage. Standard voltage : 0.8 to 1.2 V e. Fully tighten the mounting bolts. UTION: o not depress the brake pedal after turning the ignition switch ON. f. Move the shift lever to the P position. g. Turn the ignition switch ON with the brake pedal released. h. lear the stored value of stroke sensor. i. Using the ONSULT-III, perform adjustment of stroke sensor. 2. Perform the adjustment of stroke sensor. a. Turn the ignition switch OFF. b. onnect the ONSULT-III. c. Move the shift lever to the P position. d. Turn the ignition switch ON (REY) with the brake pedal depressed. If the stroke sensor offset learning is performed without turning the ignition switch ON, the learning process may not be completed properly because of insufficient auxiliary battery voltage. When the stroke sensor offset learning is interrupted, or the learning process is performed with the shift lever not in the P position. e. Select TEST MOE in WORK SUPPORT to start TEST MOE. f. Leave the vehicle stationary without depressing the brake pedal for 1 to 2 minutes. g. heck that the interval between blinks of the Electronically ontrolled rake warning lamp. The time needed to complete adjustment of stroke sensor varies depending on auxiliary battery voltage. The Electronically ontrolled rake warning lamp blinks at 1 second interval during adjustment of stroke sensor. h. Select TEST MOE EN. PERFORM ZERO POINT OF STEERING NGLE SENSOR PERFORM ZERO POINT OF STEERING NGLE SENSOR : escription INFOI: When brake EU or steering angle sensor is replaced, or battery is removed, perform zero adjustment for steering angle sensor. PERFORM ZERO POINT OF STEERING NGLE SENSOR : Special Repair Requirement INFOI: E R G H I J K L M N O P 1. fter the procedure, perform straight-ahead driving for 5 seconds or more at 35 km/h (22 MPH) or more. 2. fter driving, check that V warning lamp is OFF. R-9

10 INSPETION N JUSTMENT < SI INSPETION > [V/TS/S] If V warning lamp does not turn OFF, perform self-diagnosis for brake EU. R-10

11 SI INSPETION < SI INSPETION > [V/TS/S] SI INSPETION TEST MOE PROEURE WRNING LMP N INITOR LMP INITIL HEK R-11 INFOI: Release the parking brake. UTION: efore releasing the parking brake, move the shift lever to the P position for safety. When the parking brake is applied or the level of the brake fluid is low, the brake warning lamp comes on. 2. When the ignition switch is turned ON, check that the S warning lamp, brake warning lamp, V warning lamp, Electronically ontrolled rake warning lamp and SLIP indicator lamp come on and remain ON until the ignition switch is turned ON (REY). If the EU stored a T, the S warning lamp, brake warning lamp, V warning lamp, Electronically ontrolled rake warning lamp and SLIP indicator lamp come ON. If the indicator remains ON or does not come ON, proceed to troubleshooting for the lamp circuits listed below. Trouble area S warning lamp circuit rake warning lamp circuit Electronically ontrolled rake warning lamp circuit V warning lamp circuit SLIP indicator lamp circuit Reference page R-167, "escription" R-173, "escription" R-175, "escription" R-169, "escription" R-178, "escription" ELERTION SENSOR HEK (ONSULT-III) 1. Keep the vehicle stationary on a level surface for 1 second or more. cceleration sensor check can be performed with the master cylinder pressure sensor check below. MSTER YLINER PRESSURE SENSOR HEK (ONSULT-III) 1. Leave the vehicle in a stationary condition and release the brake pedal for 1 second or more, and quickly and continuously depress the brake pedal with a force of 98 N (10 kgf, 22 lbf) or more for 1 second. 2. heck that the S warning lamp stays ON for 3 seconds. Ensure that the S warning lamp comes ON. While the S warning lamp stays ON, continue to depress the brake pedal with a force of 98 N (10 kgf, 22 lbf) or more. The S warning lamp comes ON for 3 seconds every time brake pedal operation above is performed. Requirement for pedal operation are more than 50 MPa/sec. and 4 MPa at master cylinder pressure sensor. WHEEL SENSOR HEK (ONSULT-III) 1. heck the wheel sensor signal. a. rive the vehicle straight ahead. ccelerate the vehicle to a speed 45 km/h (28 MPH) or more for several seconds and check that the S warning lamp goes OFF. The sensor check may not be completed if wheelspin occurs. 2. Stop vehicle. UTION: efore performing the wheel sensor check, completed the acceleration sensor and master cylinder pressure sensor checks. The wheel sensor check may not be completed if the wheel sensor check is started while turning the steering wheel or spinning the wheels. fter the S warning lamp goes OFF and if the vehicle speed exceeds 80 km/h (50 MPH), a signal check code will be stored again. ccelerate or stop the vehicle before the speed reaches 80 km/h (50 MPH). E R G H I J K L M N O P

12 SI INSPETION < SI INSPETION > [V/TS/S] If the signal check has not been completed, the S warning lamp comes ON while driving and the S system does not operate. When the sensor check has been completed, the S warning lamp goes OFF while driving. 3. heck the V sensor. YW RTE SENSOR HEK (ONSULT-III) 1. heck the zero point voltage of the yaw rate sensor. a. Keep the vehicle in a stationary condition on a level surface for 1 second or more. 2. heck the output of the yaw rate sensor. a. Move the shift lever from P to the position and drive the vehicle at a speed of approximately 5 km/h (3 MPH), and turn the steering wheel either to the left or right 90 or more until the vehicle makes a 180 turn. b. Stop the vehicle and move the shift lever to the P position. heck that the brake warning buzzer sounds for 3 seconds. If the brake warning buzzer sounds, the sensor check is completed normally. If the brake warning buzzer does not sound, check the brake warning buzzer circuit, then perform the sensor check again. If the brake warning buzzer still does not sound, there is a malfunction in the yaw rate sensor, so check the T. Make a 180 turn. t the end of the turn, the direction of the vehicle should be within 180 ±5 of its start position. o not spin the wheel. o not turn the ignition switch OFF while turning. o not move the shift lever to the P position while turning, but changing in the vehicle speed, or driving in reverse is possible. omplete the turn within 20 seconds. EN OF SENSOR HEK (ONSULT-III) 1. If the sensor check is completed, the S warning lamp is off while the vehicle is driving. UTION: When the yaw rate sensor, acceleration sensor, wheel sensor, and master cylinder pressure sensor checks are completed, the sensor check is completed. If the sensor check is not completed, the S warning lamp comes ON even while the vehicle is driving and the S does not operate. RE T OF TEST MOE (SIGNL HEK) FUNTION (ONSULT-III) 1. Read the T(s) by following the tester screen. UTION: If only the Ts are displayed, repair the malfunction area and clear the Ts. If the Ts or Test Mode codes (T of signal check function) are displayed, repair the malfunction area, clear the Ts and perform the Test Mode inspection. Refer to the list of T. T OF TEST MOE (SIGNL HEK) FUNTION S sensor: T code etection item Trouble area Low output signal of front wheel sensor RH Low output signal of front wheel sensor LH Low output signal of rear wheel sensor RH Front wheel sensor RH Sensor installation Wheel sensor rotor Front wheel sensor LH Sensor installation Wheel sensor rotor Rear wheel sensor RH Sensor installation Wheel sensor rotor R-12

13 SI INSPETION < SI INSPETION > [V/TS/S] V sensor: T code etection item Trouble area 1274 Low output signal of rear wheel sensor LH Rear wheel sensor LH Sensor installation Wheel sensor rotor 1275 bnormal change in output signal is front wheel sensor RH Wheel sensor rotor 1276 bnormal change in output signal is front wheel sensor LH Wheel sensor rotor 1277 bnormal change in output signal is rear wheel sensor RH Wheel sensor rotor 1278 bnormal change in output signal is rear wheel sensor LH Wheel sensor rotor Electronically ontrolled rake sensor: cceleration sensor output voltage malfunction Master cylinder pressure sensor output malfunction The codes in this table are output only in Test Mode (signal check). Yaw rate/side/decel G sensor Sensor installation Stop lamp switch Master cylinder pressure sensor T code etection item Trouble area 0371 Yaw rate sensor Yaw rate/side/decel G sensor T code etection item Trouble area 1346 Stroke sensor zero point learning malfunction rake stroke sensor E R G H I J K L M N O P R-13

14 ELETRONILLY ONTROLLE RKE SYSTEM < FUNTION IGNOSIS > [V/TS/S] FUNTION IGNOSIS ELETRONILLY ONTROLLE RKE SYSTEM System iagram INFOI: System escription JSFI0062G INFOI: The system detects the degree of brake pedal operation with a brake stroke sensor and two master cylinder pressure sensors, and calculates the optimum hydraulic brake force. The hydraulic pressure source is adjusted based on this so that the optimum hydraulic control is independently performed on all four wheels. 2. Meanwhile, the Electronically ontrolled rake system performs control of the normal brakes, S, TS, V in accordance with the operations of the driver. 3. There is a hydraulic backup mechanism that applies master cylinder pressure generated by human power to the wheel cylinder when the brake control stops, In addition, as a fail safe mechanism, when the brake control is malfunctioning, the system excludes the malfunctioning sections and continues to perform brake control on the normal sections. power backup unit (brake control power supply) is also used to ensure a stable supply of power to the system. R-14

15 ELETRONILLY ONTROLLE RKE SYSTEM < FUNTION IGNOSIS > [V/TS/S] omponent Parts Location INFOI: E R G H I J K L M N O P R-15

16 ELETRONILLY ONTROLLE RKE SYSTEM < FUNTION IGNOSIS > [V/TS/S] LFI0001ZZ R-16

17 ELETRONILLY ONTROLLE RKE SYSTEM < FUNTION IGNOSIS > [V/TS/S] E R G H I J LFI0002ZZ 1. S relay No.1 2. S motor relay No.1 3. S motor relay No.2 4. S relay No.2 5. rake EU 6. Front RH wheel sensor 7. Front LH wheel sensor 8. rake actuator 9. rake simulator 10. rake warning buzzer 11. rake stroke sensor 12. V warning lamp 13. SLIP indicator lamp 14. S warning lamp 15. rake warning lamp (For US) 16. rake warning lamp (For N) 17. Electronically ontrolled rake 18. Steering angle sensor warning lamp 19. Yaw rate/side/decel G sensor 20. Rear RH wheel sensor 21. Rear LH wheel sensor 22. rake capacitor K L M N. Engine room right side. Engine room right side. Steering knuckle (RH). Steering knuckle (LH) E. Engine room right side F. Engine room left side G. luster lid H. Instrument driver panel lower I. ombination meter J. Spiral cable assembly K. enter onsole L. Rear knuckle (RH) M. Rear knuckle N. Trunk room right side omponent escription INFOI: O P R-17

18 ELETRONILLY ONTROLLE RKE SYSTEM < FUNTION IGNOSIS > [V/TS/S] rake EU omponents S main relay (S relay No.1, 2) S motor relay (S motor relay No.1, 2) Wheel sensor Stop lamp switch rake stroke sensor rake capacitor rake warning buzzer HV EU Yaw rate/side/decel G sensor Steering angle sensor Master cylinder rake fluid reservoir rake fluid level switch rake simulator rake actuator Pump motor ccumulator ccumulator pressure sensor (P) Relief valve Master cylinder pressure sensor (PM1, PM2) Wheel cylinder pressure sensor (PFR, PFL, PRR, PRL) Switching solenoid valve (SM1, SM2) Linear solenoid valve (SL##, SLR##) S warning lamp rake warning lamp Electronically ontrolled rake warning lamp Functions Processes the signals from each sensor to perform brake control for S, TS, and V. In addition, it communicates with the HV control EU to output a control signal. ontrolled by the brake EU. In addition to supplying power to each solenoid, it supplies power to the brake EU. ontrolled by the brake EU. Supplies power to the pump motor. etects the wheel speed and inputs the results to the brake EU. etects the brake operating conditions and inputs the result to the brake EU. It supplies power to the brake EU. etects the brake pedal stroke volume and inputs the result to the brake EU. Provides the system with a supplementary power supply by discharging the electric charge of the brake capacitor. It happens when an electric charge is accumulator in the brake capacitor in the unit and the vehicle power voltage (12 V) is reduced. Sounds continuously to warm the driver of a reduction in accumulator hydraulic pressure in the brake actuator, an abnormality in the power supply system, or a reduction in the vehicle power voltage (12 V). ontrols the engine output during the operation of TS and V by communicating with the brake EU. etects the yaw rate (axial rotation) and the forward and lateral acceleration, and inputs the results to the brake EU. etects the steering angle and direction, and outputs the results to the brake EU through N communication. Generates pressure in accordance with the force of the brake operation. Stores brake fluid for the master cylinder system and power supply system. etects a reduction in the level of the brake fluid in the reservoir. Generates a natural pedal stroke in accordance with the pedal force of the driver during system control. ontrols the hydraulic pressure of each of the four wheel cylinders using the output signal of the brake EU. Pumps up the brake fluid from the reservoir and supplies the accumulator with high hydraulic pressure. ccumulators for the hydraulic pressure that was generated by the pump. uilt into the brake actuator to detect the accumulator hydraulic pressure. Prevents excessive high pressure in the power supply system. It relieves the system by sending brake fluid to the reservoir when the pump has operated continuously, for example, during an accumulator hydraulic pressure sensor malfunction. uilt into the brake actuator to detect the pressure of the master cylinder and input the results to the brake EU. uilt into the brake actuator to detect the brake hydraulic pressure of each wheel cylinder. ircuits from a master cylinder to a wheel cylinder are interrupted. ontrols the wheel cylinder hydraulic pressure during normal brake operation, S, TS, and V control. SL## are solenoids for controlling pressure increases, while SLR## are solenoids for controlling pressure decreases. omes on to inform the driver that a malfunction in the S have occurred. When a malfunction occurs in the oil pressure system. When E is not controlled. omes on to inform the driver that a malfunction in the Electronically ontrolled rake or degenerative brake has occurred. R-18

19 ELETRONILLY ONTROLLE RKE SYSTEM < FUNTION IGNOSIS > [V/TS/S] SLIP indicator lamp V warning lamp omponents Functions links to inform the driver that S, TS and V are operating. omes on to inform the driver that a malfunction in V system have occurred. Zero point of steering angle sensor is dislocated. Remove the auxiliary battery. E R G H I J K L M N O P R-19

20 S < FUNTION IGNOSIS > [V/TS/S] S System iagram INFOI: System escription JSFI0057G INFOI: SYSTEM ESRIPTION The S (nti-lock raking System) helps prevent the wheels from locking when the brakes are applied suddenly and firmly or applied on a slippery surface. OPERTION ESRIPTION The brake EU detects wheel lock based on speed signals it receives from the wheel sensors. ased on this information, and yaw rate/side/decel G sensor signals, the brake EU controls the solenoid valves are used to prevent wheel lock by controlling the hydraulic pressure applied to the brakes at each wheel. The SLIP indicator lamp blinks when the system is operating. The S warning lamp will come ON when the system is malfunctioning. R-20

21 S < FUNTION IGNOSIS > [V/TS/S] omponent Parts Location INFOI: E R G H I J K L M N O P R-21

22 S < FUNTION IGNOSIS > [V/TS/S] LFI0001ZZ R-22

23 S < FUNTION IGNOSIS > [V/TS/S] E R G H I J LFI0002ZZ 1. S relay No.1 2. S motor relay No.1 3. S motor relay No.2 4. S relay No.2 5. rake EU 6. Front RH wheel sensor 7. Front LH wheel sensor 8. rake actuator 9. rake simulator 10. rake warning buzzer 11. rake stroke sensor 12. V warning lamp 13. SLIP indicator lamp 14. S warning lamp 15. rake warning lamp (For US) 16. rake warning lamp (For N) 17. Electronically ontrolled rake 18. Steering angle sensor warning lamp 19. Yaw rate/side/decel G sensor 20. Rear RH wheel sensor 21. Rear LH wheel sensor 22. rake capacitor K L M N. Engine room right side. Engine room right side. Steering knuckle (RH). Steering knuckle (LH) E. Engine room right side F. Engine room left side G. luster lid H. Instrument driver panel lower I. ombination meter J. Spiral cable assembly K. enter onsole L. Rear knuckle (RH) M. Rear knuckle N. Trunk room right side omponent escription INFOI: O P R-23

24 S < FUNTION IGNOSIS > [V/TS/S] rake EU omponents S main relay (S relay No.1, 2) S motor relay (S motor relay No.1, 2) Wheel sensor Stop lamp switch rake stroke sensor rake capacitor rake warning buzzer HV EU Yaw rate/side/decel G sensor Steering angle sensor Master cylinder rake fluid reservoir rake fluid level switch rake simulator rake actuator Pump motor ccumulator ccumulator pressure sensor (P) Relief valve Master cylinder pressure sensor (PM1, PM2) Wheel cylinder pressure sensor (PFR, PFL, PRR, PRL) Switching solenoid valve (SM1, SM2) Linear solenoid valve (SL##, SLR##) S warning lamp rake warning lamp Electronically ontrolled rake warning lamp Functions Processes the signals from each sensor to perform brake control for S, TS, and V. In addition, it communicates with the HV control EU to output a control signal. ontrolled by the brake EU. In addition to supplying power to each solenoid, it supplies power to the brake EU. ontrolled by the brake EU. Supplies power to the pump motor. etects the wheel speed and inputs the results to the brake EU. etects the brake operating conditions and inputs the result to the brake EU. It supplies power to the brake EU. etects the brake pedal stroke volume and inputs the result to the brake EU. Provides the system with a supplementary power supply by discharging the electric charge of the brake capacitor. It happens when an electric charge is accumulator in the brake capacitor in the unit and the vehicle power voltage (12 V) is reduced. Sounds continuously to warm the driver of a reduction in accumulator hydraulic pressure in the brake actuator, an abnormality in the power supply system, or a reduction in the vehicle power voltage (12 V). ontrols the engine output during the operation of TS and V by communicating with the brake EU. etects the yaw rate (axial rotation) and the forward and lateral acceleration, and inputs the results to the brake EU. etects the steering angle and direction, and outputs the results to the brake EU through N communication. Generates pressure in accordance with the force of the brake operation. Stores brake fluid for the master cylinder system and power supply system. etects a reduction in the level of the brake fluid in the reservoir. Generates a natural pedal stroke in accordance with the pedal force of the driver during system control. ontrols the hydraulic pressure of each of the four wheel cylinders using the output signal of the brake EU. Pumps up the brake fluid from the reservoir and supplies the accumulator with high hydraulic pressure. ccumulators for the hydraulic pressure that was generated by the pump. uilt into the brake actuator to detect the accumulator hydraulic pressure. Prevents excessive high pressure in the power supply system. It relieves the system by sending brake fluid to the reservoir when the pump has operated continuously, for example, during an accumulator hydraulic pressure sensor malfunction. uilt into the brake actuator to detect the pressure of the master cylinder and input the results to the brake EU. uilt into the brake actuator to detect the brake hydraulic pressure of each wheel cylinder. ircuits from a master cylinder to a wheel cylinder are interrupted. ontrols the wheel cylinder hydraulic pressure during normal brake operation, S, TS, and V control. SL## are solenoids for controlling pressure increases, while SLR## are solenoids for controlling pressure decreases. omes on to inform the driver that a malfunction in the S have occurred. When a malfunction occurs in the oil pressure system. When E is not controlled. omes on to inform the driver that a malfunction in the Electronically ontrolled rake or degenerative brake has occurred. R-24

25 S < FUNTION IGNOSIS > [V/TS/S] SLIP indicator lamp V warning lamp omponents Functions links to inform the driver that S, TS and V are operating. omes on to inform the driver that a malfunction in V system have occurred. Zero point of steering angle sensor is dislocated. Remove the auxiliary battery. E R G H I J K L M N O P R-25

26 E < FUNTION IGNOSIS > [V/TS/S] E System iagram INFOI: System escription JSFI0058G INFOI: SYSTEM ESRIPTION The E (Electric rake force istribution) control utilizes S, performing proper brake force distribution between the front and rear wheels in accordance with driving conditions. When braking while cornering, it also controls the brake forces of the right and left wheels, helping to maintain vehicle behavior. OPERTION ESRIPTION The brake EU receives a speed signal from each wheel sensor, G sensor signals and uses these signals to detect locking of the wheels. The EU uses this information in order to determine appropriate control of the solenoid valves. The solenoid valves control the hydraulic pressure applied to the brake cylinder at each wheel. In this way, the solenoid valves are used to control the brake power split between the front and rear, and left and right wheels. The brake warning lamp will come ON if there is a malfunction in the E system. R-26

27 E < FUNTION IGNOSIS > [V/TS/S] omponent Parts Location INFOI: E R G H I J K L M N O P R-27

28 E < FUNTION IGNOSIS > [V/TS/S] LFI0001ZZ R-28

29 E < FUNTION IGNOSIS > [V/TS/S] E R G H I J LFI0002ZZ 1. S relay No.1 2. S motor relay No.1 3. S motor relay No.2 4. S relay No.2 5. rake EU 6. Front RH wheel sensor 7. Front LH wheel sensor 8. rake actuator 9. rake simulator 10. rake warning buzzer 11. rake stroke sensor 12. V warning lamp 13. SLIP indicator lamp 14. S warning lamp 15. rake warning lamp (For US) 16. rake warning lamp (For N) 17. Electronically ontrolled rake 18. Steering angle sensor warning lamp 19. Yaw rate/side/decel G sensor 20. Rear RH wheel sensor 21. Rear LH wheel sensor 22. rake capacitor K L M N. Engine room right side. Engine room right side. Steering knuckle (RH). Steering knuckle (LH) E. Engine room right side F. Engine room left side G. luster lid H. Instrument driver panel lower I. ombination meter J. Spiral cable assembly K. enter onsole L. Rear knuckle (RH) M. Rear knuckle N. Trunk room right side omponent escription INFOI: O P R-29

30 E < FUNTION IGNOSIS > [V/TS/S] rake EU omponents S main relay (S relay No.1, 2) S motor relay (S motor relay No.1, 2) Wheel sensor Stop lamp switch rake stroke sensor rake capacitor rake warning buzzer HV EU Yaw rate/side/decel G sensor Steering angle sensor Master cylinder rake fluid reservoir rake fluid level switch rake simulator rake actuator Pump motor ccumulator ccumulator pressure sensor (P) Relief valve Master cylinder pressure sensor (PM1, PM2) Wheel cylinder pressure sensor (PFR, PFL, PRR, PRL) Switching solenoid valve (SM1, SM2) Linear solenoid valve (SL##, SLR##) S warning lamp rake warning lamp Electronically ontrolled rake warning lamp Functions Processes the signals from each sensor to perform brake control for S, TS, and V. In addition, it communicates with the HV control EU to output a control signal. ontrolled by the brake EU. In addition to supplying power to each solenoid, it supplies power to the brake EU. ontrolled by the brake EU. Supplies power to the pump motor. etects the wheel speed and inputs the results to the brake EU. etects the brake operating conditions and inputs the result to the brake EU. It supplies power to the brake EU. etects the brake pedal stroke volume and inputs the result to the brake EU. Provides the system with a supplementary power supply by discharging the electric charge of the brake capacitor. It happens when an electric charge is accumulator in the brake capacitor in the unit and the vehicle power voltage (12 V) is reduced. Sounds continuously to warm the driver of a reduction in accumulator hydraulic pressure in the brake actuator, an abnormality in the power supply system, or a reduction in the vehicle power voltage (12 V). ontrols the engine output during the operation of TS and V by communicating with the brake EU. etects the yaw rate (axial rotation) and the forward and lateral acceleration, and inputs the results to the brake EU. etects the steering angle and direction, and outputs the results to the brake EU through N communication. Generates pressure in accordance with the force of the brake operation. Stores brake fluid for the master cylinder system and power supply system. etects a reduction in the level of the brake fluid in the reservoir. Generates a natural pedal stroke in accordance with the pedal force of the driver during system control. ontrols the hydraulic pressure of each of the four wheel cylinders using the output signal of the brake EU. Pumps up the brake fluid from the reservoir and supplies the accumulator with high hydraulic pressure. ccumulators for the hydraulic pressure that was generated by the pump. uilt into the brake actuator to detect the accumulator hydraulic pressure. Prevents excessive high pressure in the power supply system. It relieves the system by sending brake fluid to the reservoir when the pump has operated continuously, for example, during an accumulator hydraulic pressure sensor malfunction. uilt into the brake actuator to detect the pressure of the master cylinder and input the results to the brake EU. uilt into the brake actuator to detect the brake hydraulic pressure of each wheel cylinder. ircuits from a master cylinder to a wheel cylinder are interrupted. ontrols the wheel cylinder hydraulic pressure during normal brake operation, S, TS, and V control. SL## are solenoids for controlling pressure increases, while SLR## are solenoids for controlling pressure decreases. omes on to inform the driver that a malfunction in the S have occurred. When a malfunction occurs in the oil pressure system. When E is not controlled. omes on to inform the driver that a malfunction in the Electronically ontrolled rake or degenerative brake has occurred. R-30

31 E < FUNTION IGNOSIS > [V/TS/S] SLIP indicator lamp V warning lamp omponents Functions links to inform the driver that S, TS and V are operating. omes on to inform the driver that a malfunction in V system have occurred. Zero point of steering angle sensor is dislocated. Remove the auxiliary battery. E R G H I J K L M N O P R-31

32 TS < FUNTION IGNOSIS > [V/TS/S] TS System iagram INFOI: System escription JSFI0059G INFOI: SYSTEM ESRIPTION The TS (Traction ontrol System) helps prevent the drive wheels from slipping when the driver depresses the accelerator pedal excessively while starting off or accelerating on a slippery surface. OPERTION ESRIPTION The brake EU detects wheelspin by receiving signals from each wheel sensor. The brake EU controls engine torque with the HV EU via N communication and brake hydraulic pressure through the solenoid valve. The SLIP indicator lamp blinks when the system is operating. When there is a malfunction in the TS system, the V warning lamp come ON. R-32

33 TS < FUNTION IGNOSIS > [V/TS/S] omponent Parts Location INFOI: E R G H I J K L M N O P R-33

34 TS < FUNTION IGNOSIS > [V/TS/S] LFI0001ZZ R-34

35 TS < FUNTION IGNOSIS > [V/TS/S] E R G H I J LFI0002ZZ 1. S relay No.1 2. S motor relay No.1 3. S motor relay No.2 4. S relay No.2 5. rake EU 6. Front RH wheel sensor 7. Front LH wheel sensor 8. rake actuator 9. rake simulator 10. rake warning buzzer 11. rake stroke sensor 12. V warning lamp 13. SLIP indicator lamp 14. S warning lamp 15. rake warning lamp (For US) 16. rake warning lamp (For N) 17. Electronically ontrolled rake 18. Steering angle sensor warning lamp 19. Yaw rate/side/decel G sensor 20. Rear RH wheel sensor 21. Rear LH wheel sensor 22. rake capacitor K L M N. Engine room right side. Engine room right side. Steering knuckle (RH). Steering knuckle (LH) E. Engine room right side F. Engine room left side G. luster lid H. Instrument driver panel lower I. ombination meter J. Spiral cable assembly K. enter onsole L. Rear knuckle (RH) M. Rear knuckle N. Trunk room right side omponent escription INFOI: O P R-35

36 TS < FUNTION IGNOSIS > [V/TS/S] rake EU omponents S main relay (S relay No.1, 2) S motor relay (S motor relay No.1, 2) Wheel sensor Stop lamp switch rake stroke sensor rake capacitor rake warning buzzer HV EU Yaw rate/side/decel G sensor Steering angle sensor Master cylinder rake fluid reservoir rake fluid level switch rake simulator rake actuator Pump motor ccumulator ccumulator pressure sensor (P) Relief valve Master cylinder pressure sensor (PM1, PM2) Wheel cylinder pressure sensor (PFR, PFL, PRR, PRL) Switching solenoid valve (SM1, SM2) Linear solenoid valve (SL##, SLR##) S warning lamp rake warning lamp Electronically ontrolled rake warning lamp Functions Processes the signals from each sensor to perform brake control for S, TS, and V. In addition, it communicates with the HV control EU to output a control signal. ontrolled by the brake EU. In addition to supplying power to each solenoid, it supplies power to the brake EU. ontrolled by the brake EU. Supplies power to the pump motor. etects the wheel speed and inputs the results to the brake EU. etects the brake operating conditions and inputs the result to the brake EU. It supplies power to the brake EU. etects the brake pedal stroke volume and inputs the result to the brake EU. Provides the system with a supplementary power supply by discharging the electric charge of the brake capacitor. It happens when an electric charge is accumulator in the brake capacitor in the unit and the vehicle power voltage (12 V) is reduced. Sounds continuously to warm the driver of a reduction in accumulator hydraulic pressure in the brake actuator, an abnormality in the power supply system, or a reduction in the vehicle power voltage (12 V). ontrols the engine output during the operation of TS and V by communicating with the brake EU. etects the yaw rate (axial rotation) and the forward and lateral acceleration, and inputs the results to the brake EU. etects the steering angle and direction, and outputs the results to the brake EU through N communication. Generates pressure in accordance with the force of the brake operation. Stores brake fluid for the master cylinder system and power supply system. etects a reduction in the level of the brake fluid in the reservoir. Generates a natural pedal stroke in accordance with the pedal force of the driver during system control. ontrols the hydraulic pressure of each of the four wheel cylinders using the output signal of the brake EU. Pumps up the brake fluid from the reservoir and supplies the accumulator with high hydraulic pressure. ccumulators for the hydraulic pressure that was generated by the pump. uilt into the brake actuator to detect the accumulator hydraulic pressure. Prevents excessive high pressure in the power supply system. It relieves the system by sending brake fluid to the reservoir when the pump has operated continuously, for example, during an accumulator hydraulic pressure sensor malfunction. uilt into the brake actuator to detect the pressure of the master cylinder and input the results to the brake EU. uilt into the brake actuator to detect the brake hydraulic pressure of each wheel cylinder. ircuits from a master cylinder to a wheel cylinder are interrupted. ontrols the wheel cylinder hydraulic pressure during normal brake operation, S, TS, and V control. SL## are solenoids for controlling pressure increases, while SLR## are solenoids for controlling pressure decreases. omes on to inform the driver that a malfunction in the S have occurred. When a malfunction occurs in the oil pressure system. When E is not controlled. omes on to inform the driver that a malfunction in the Electronically ontrolled rake or degenerative brake has occurred. R-36

37 TS < FUNTION IGNOSIS > [V/TS/S] SLIP indicator lamp V warning lamp omponents Functions links to inform the driver that S, TS and V are operating. omes on to inform the driver that a malfunction in V system have occurred. Zero point of steering angle sensor is dislocated. Remove the auxiliary battery. E R G H I J K L M N O P R-37

38 V < FUNTION IGNOSIS > [V/TS/S] V System iagram INFOI: System escription JSFI0060G INFOI: SYSTEM ESRIPTION The V (Vehicle ynamics ontrol) helps prevent the vehicle from slipping sideways as a result of strong front or rear wheel slid during cornering. OPERTION ESRIPTION The brake EU determines the vehicle operating conditions based in signals received from the wheel sensors, yaw rate/side/decel G sensor, and steering angle sensor. The brake EU sends signals via N communication to the HV EU on order to control engine torque. The brake EU controls brake hydraulic pressure using the solenoid valves. The SLIP indicator lamp will blink, when the system in operating. If a malfunction occurs in the V system, V warning lamp will come ON. R-38

39 V < FUNTION IGNOSIS > [V/TS/S] omponent Parts Location INFOI: E R G H I J K L M N O P R-39

40 V < FUNTION IGNOSIS > [V/TS/S] LFI0001ZZ R-40

41 V < FUNTION IGNOSIS > [V/TS/S] E R G H I J LFI0002ZZ 1. S relay No.1 2. S motor relay No.1 3. S motor relay No.2 4. S relay No.2 5. rake EU 6. Front RH wheel sensor 7. Front LH wheel sensor 8. rake actuator 9. rake simulator 10. rake warning buzzer 11. rake stroke sensor 12. V warning lamp 13. SLIP indicator lamp 14. S warning lamp 15. rake warning lamp (For US) 16. rake warning lamp (For N) 17. Electronically ontrolled rake 18. Steering angle sensor warning lamp 19. Yaw rate/side/decel G sensor 20. Rear RH wheel sensor 21. Rear LH wheel sensor 22. rake capacitor K L M N. Engine room right side. Engine room right side. Steering knuckle (RH). Steering knuckle (LH) E. Engine room right side F. Engine room left side G. luster lid H. Instrument driver panel lower I. ombination meter J. Spiral cable assembly K. enter onsole L. Rear knuckle (RH) M. Rear knuckle N. Trunk room right side omponent escription INFOI: O P R-41

42 V < FUNTION IGNOSIS > [V/TS/S] rake EU omponents S main relay (S relay No.1, 2) S motor relay (S motor relay No.1, 2) Wheel sensor Stop lamp switch rake stroke sensor rake capacitor rake warning buzzer HV EU Yaw rate/side/decel G sensor Steering angle sensor Master cylinder rake fluid reservoir rake fluid level switch rake simulator rake actuator Pump motor ccumulator ccumulator pressure sensor (P) Relief valve Master cylinder pressure sensor (PM1, PM2) Wheel cylinder pressure sensor (PFR, PFL, PRR, PRL) Switching solenoid valve (SM1, SM2) Linear solenoid valve (SL##, SLR##) S warning lamp rake warning lamp Electronically ontrolled rake warning lamp Functions Processes the signals from each sensor to perform brake control for S, TS, and V. In addition, it communicates with the HV control EU to output a control signal. ontrolled by the brake EU. In addition to supplying power to each solenoid, it supplies power to the brake EU. ontrolled by the brake EU. Supplies power to the pump motor. etects the wheel speed and inputs the results to the brake EU. etects the brake operating conditions and inputs the result to the brake EU. It supplies power to the brake EU. etects the brake pedal stroke volume and inputs the result to the brake EU. Provides the system with a supplementary power supply by discharging the electric charge of the brake capacitor. It happens when an electric charge is accumulator in the brake capacitor in the unit and the vehicle power voltage (12 V) is reduced. Sounds continuously to warm the driver of a reduction in accumulator hydraulic pressure in the brake actuator, an abnormality in the power supply system, or a reduction in the vehicle power voltage (12 V). ontrols the engine output during the operation of TS and V by communicating with the brake EU. etects the yaw rate (axial rotation) and the forward and lateral acceleration, and inputs the results to the brake EU. etects the steering angle and direction, and outputs the results to the brake EU through N communication. Generates pressure in accordance with the force of the brake operation. Stores brake fluid for the master cylinder system and power supply system. etects a reduction in the level of the brake fluid in the reservoir. Generates a natural pedal stroke in accordance with the pedal force of the driver during system control. ontrols the hydraulic pressure of each of the four wheel cylinders using the output signal of the brake EU. Pumps up the brake fluid from the reservoir and supplies the accumulator with high hydraulic pressure. ccumulators for the hydraulic pressure that was generated by the pump. uilt into the brake actuator to detect the accumulator hydraulic pressure. Prevents excessive high pressure in the power supply system. It relieves the system by sending brake fluid to the reservoir when the pump has operated continuously, for example, during an accumulator hydraulic pressure sensor malfunction. uilt into the brake actuator to detect the pressure of the master cylinder and input the results to the brake EU. uilt into the brake actuator to detect the brake hydraulic pressure of each wheel cylinder. ircuits from a master cylinder to a wheel cylinder are interrupted. ontrols the wheel cylinder hydraulic pressure during normal brake operation, S, TS, and V control. SL## are solenoids for controlling pressure increases, while SLR## are solenoids for controlling pressure decreases. omes on to inform the driver that a malfunction in the S have occurred. When a malfunction occurs in the oil pressure system. When E is not controlled. omes on to inform the driver that a malfunction in the Electronically ontrolled rake or degenerative brake has occurred. R-42