BRAKE CONTROL SYSTEM SECTION BRC CONTENTS BRAKES BRC-1 ABS BASIC INSPECTION... 6 FUNCTION DIAGNOSIS... 9 COMPONENT DIAGNOSIS...16

Transcription

1 RS ST R TR SYST TTS S S ST... 6 SS RR WRFW... 6 Work Flow...6 iagnostic Work Sheet...8 FUT SS... 9 S... 9 System iagram...9 System escription...9 omponent arts ocation...11 omponent escription...12 SUT- Function (S)...12 T SS , 1102, 1103, 1104 W S- SR escription...16 T ogic...16 iagnosis rocedure...16 omponent nspection , 1106, 1107, 1108 W S- SR escription...19 T ogic...19 iagnosis rocedure...19 omponent nspection...21 T 1109 TTRY VT [R- ]...22 escription...22 T ogic...22 iagnosis rocedure...22 T 1110 TR FUR...24 T ogic...24 iagnosis rocedure...24 T 1111 U TR...25 escription...25 T ogic...25 iagnosis rocedure...25 omponent nspection...26 T 1114 RY...27 escription...27 T ogic...27 iagnosis rocedure...27 omponent nspection...28 T 1115 S SSR [R S- ]...29 escription...29 T ogic...29 iagnosis rocedure...29 omponent nspection , 1122, 1124, 1126 S S...32 escription...32 T ogic...32 iagnosis rocedure...32 omponent nspection , 1123, 1125, 1127 UT S S...34 escription...34 T ogic...34 iagnosis rocedure...34 omponent nspection...35 U1000 RUT...36 escription...36 T ogic...36 iagnosis rocedure...36 S WR...37 escription...37 omponent Function heck...37 iagnosis rocedure...37 R WR

2 escription omponent Function heck iagnosis rocedure U SS S TUTR TR UT (TR UT) Reference Value Wiring iagram - oupe Wiring iagram - Sedan Fail-Safe T o. ndex SYT SS S Symptom Table XSSV S FUT RT FRQUY iagnosis rocedure UXT RT iagnosis rocedure T R ST S iagnosis rocedure S FUT S T RT iagnosis rocedure VRT R S RT SU URS iagnosis rocedure R RT T escription RUT RUTS recaution for Supplemental Restraint System (SRS) "R " and "ST T R-T- SR" Service recaution for rake System recaution for rake ontrol S TUTR TR UT (TR UT) xploded View Removal and nstallation TS/S S ST SS RR WRFW Work Flow iagnostic Work Sheet FUT SS TS System iagram System escription omponent arts ocation omponent escription SUT- Function (S) T SS , 1102, 1103, 1104 W S- SR escription T ogic iagnosis rocedure omponent nspection , 1106, 1107, 1108 W S- SR escription T ogic iagnosis rocedure omponent nspection T 1109 TTRY VT [R- ] escription T ogic iagnosis rocedure T 1110 TR FUR T ogic iagnosis rocedure RRT RRT Special Service Tool ommercial Service Tool V RR W SSRS Removal and nstallation SSR RTR Removal and nstallation T 1111 U TR escription T ogic iagnosis rocedure omponent nspection T 1114 RY escription T ogic iagnosis rocedure omponent nspection T 1115 S SSR [R S- ]... 94

3 escription...94 T ogic...94 iagnosis rocedure...94 omponent nspection , 1122, 1124, 1126 S S...97 escription...97 T ogic...97 iagnosis rocedure...97 omponent nspection , 1123, 1125, 1127 UT S S...99 escription...99 T ogic...99 iagnosis rocedure...99 omponent nspection , 1131, 1132, 1133 S escription T ogic iagnosis rocedure omponent nspection & Special Repair Requirement U1000 RUT escription T ogic iagnosis rocedure S WR escription omponent Function heck iagnosis rocedure R WR escription omponent Function heck iagnosis rocedure TS FF SWT escription omponent Function heck iagnosis rocedure omponent nspection U SS S TUTR TR UT (TR UT) Reference Value Wiring iagram - oupe Wiring iagram - Sedan Fail-Safe T o. ndex SYT SS TS Symptom Table XSSV S FUT RT FRQUY iagnosis rocedure UXT RT iagnosis rocedure T R ST S iagnosis rocedure S FUT S T RT iagnosis rocedure VRT R S RT SU URS iagnosis rocedure V RS UR TS/S - TR iagnosis rocedure R RT T escription RUT RUTS recaution for Supplemental Restraint System (SRS) "R " and "ST T R-T- SR" Service recaution for rake System recaution for rake ontrol RRT RRT Special Service Tool ommercial Service Tool V RR W SSRS Removal and nstallation SSR RTR Removal and nstallation S TUTR TR UT (TR UT) xploded View Removal and nstallation V/TS/S S ST SS RR WRFW Work Flow iagnostic Work Sheet ST USTT

4 T SRV W R TR UT T SRV W R TR UT : escription T SRV W R TR UT : Special Repair Requirement USTT F STR SSR UTR ST USTT F STR SSR UTR ST : escription USTT F STR SSR UTR ST : Special Repair Requirement FUT SS V/TS/S System iagram System escription omponent arts ocation omponent escription SUT- Function (S) T SS , 1102, 1103, 1104 W S- SR escription T ogic iagnosis rocedure omponent nspection , 1106, 1107, 1108 W S- SR escription T ogic iagnosis rocedure omponent nspection T 1109 TTRY VT [R- ] escription T ogic iagnosis rocedure , 1153, 1170 S TUTR TR UT (TR UT) T ogic iagnosis rocedure Special Repair Requirement T 1111 U TR escription T ogic iagnosis rocedure omponent nspection T 1114 RY escription T ogic iagnosis rocedure omponent nspection T 1115 S SSR [R S- ] escription T ogic iagnosis rocedure omponent nspection T 1116 ST SW escription T ogic iagnosis rocedure omponent nspection , 1122, 1124, 1126 S S escription T ogic iagnosis rocedure omponent nspection , 1123, 1125, 1127 UT S S..175 escription T ogic iagnosis rocedure omponent nspection , 1131, 1132, 1133, S escription T ogic iagnosis rocedure Special Repair Requirement T 1142 RSS S RUT escription T ogic iagnosis rocedure omponent nspection Special Repair Requirement , 1144 STR SSR..181 escription T ogic iagnosis rocedure omponent nspection Special Repair Requirement , 1146 YW RT/S SSR..183 escription T ogic iagnosis rocedure omponent nspection Special Repair Requirement , 1148, 1149, 1150 USV/SV..186 escription T ogic iagnosis rocedure omponent nspection

5 Special Repair Requirement T 1154 S S escription T ogic iagnosis rocedure T 1155 R FU V W escription T ogic iagnosis rocedure omponent nspection Special Repair Requirement T 1156 ST S R escription T ogic iagnosis rocedure U1000 RUT escription T ogic iagnosis rocedure R R SWT escription omponent Function heck iagnosis rocedure omponent nspection V FF SWT escription omponent Function heck iagnosis rocedure omponent nspection S WR escription omponent Function heck iagnosis rocedure R WR escription omponent Function heck iagnosis rocedure V FF TR escription omponent Function heck iagnosis rocedure S TR escription omponent Function heck iagnosis rocedure U SS S TUTR TR UT (TR UT) Reference Value Wiring iagram - oupe Wiring iagram - Sedan Fail-Safe T o. ndex SYT SS V/TS/S Symptom Table XSSV S FUT RT FRQUY iagnosis rocedure UXT RT iagnosis rocedure T R ST S iagnosis rocedure S FUT S T RT iagnosis rocedure VRT R S RT SU URS iagnosis rocedure V RS UR V/TS/S TR iagnosis rocedure RUT RUTS recaution for Supplemental Restraint System (SRS) "R " and "ST T R-T- SR" Service recaution for rake System recaution for rake ontrol RRT RRT Special Service Tool ommercial Service Tool V RR W SSRS Removal and nstallation SSR RTR Removal and nstallation S TUTR TR UT (TR UT) xploded View Removal and nstallation SSR Removal and nstallation STR SSR Removal and nstallation...241

6 < S ST > SS RR WRFW S ST SS RR WRFW Work Flow [S] F: SRT asic oncept The most important point to perform trouble diagnosis is to understand systems (control and mechanism) in vehicle thoroughly. t is also important to clarify customer complaints before inspection. First of all, reproduce symptom, and understand it fully. sk customer about his/her complaints carefully. n some cases, they will be necessary to check symptom by driving vehicle with customer. UT: ustomers are not professionals. o not assume maybe customer means... or maybe customer mentioned this symptom. SF234 t is essential to check symptoms right from the beginning in order to repair a malfunction completely. For an intermittent malfunction, it is important to reproduce symptom based on interview with customer and past examples. o not perform inspection on ad hoc basis. ost intermittent malfunctions are caused by poor contacts. n this case, it will be effective to shake suspected harness or connector by hand. When repairs are performed without any symptom check, no one can judge if malfunction has actually been eliminated. fter diagnostic, make sure to perform RS RY. Refer to -12, "SUT- Function (S)". lways read eneral nformation to confirm general precautions. Refer to -12, "SUT- Function (S)". sking omplaints omplaints against malfunction vary depending on each person. t is important to clarify customer complaints. sk customer about what symptoms are present and under what conditions. Use information to reproduce symptom while driving. t is also important to use diagnostic sheet so as not to miss information. SF233 SR339-6

7 < S ST > VR SQU SS RR WRFW [S] WF0558-7

8 < S ST > iagnostic Work Sheet SS RR WRFW [S] F: F0176-8

9 < FUT SS > FUT SS S S [S] System iagram F: WF0249 System escription F: S SYST n case of electrical malfunctions with the S, S warning lamp will turn and the condition of the vehicle will be fail-safe which is the same condition of vehicles without S system. T: S self-diagnosis sound may be heard. That is a normal condition because a self-diagnosis for gnition switch and The first starting are being performed. UT: f the Fail-Safe function is activated, then perform self-diagnosis for S control system. URS The nti-lock rake System (S) consists of electronic and hydraulic components. t allows for control of braking force so that locking of the wheels can be avoided. The S: nsures proper tracking performance through steering wheel operation. nables obstacles to be avoided through steering wheel operation. nables vehicle stability by preventing flat spins. RT When the vehicle speed is less than 10 km/h (6 ) this system does not work. The S has self-test capabilities. The system turns on the S warning lamp for 2 seconds after turning the ignition switch. The system performs another test the first time the vehicle reaches 6 km/h (4 ). mechanical noise may be heard a sthe S performs a self-test. This is a normal part of the self-test feature. f a malfunction is found during this check, the S warning lamp will come on. yring S operation, a mechanical noise may be heard. This is a normal condition. F SF f trouble occurs in the S, the S warning lamp in the combination meter comes on. t the same time, the vehicle stops the S control and braking becomes the same as that of a vehicle without S. -9

10 < FUT SS > TR TS S [S] YRU RUT R F0029 SR nlet solenoid valve 2. utlet solenoid valve 3. Reservoir 4. ump 5. otor 6. nlet valve 7. utlet valve 8. ypass check valve 9. amper RT TT S T "SYST RRR" S When starting engine or just after starting vehicle, brake pedal may vibrate or the motor operating sound may be heard from engine room. This is a normal states of the operation check. uring S operation, brake pedal lightly vibrates and a mechanical sound may be heard. This is normal. Stopping distance may be longer than that of vehicles without S when vehicle drives on rough, gravel, or snow-covered (fresh, deep snow) roads. -10

11 < FUT SS > ommunication Refer to -7, "System escription". omponent arts ocation S [S] F: Front wheel sensor R S actuator and electric unit (control unit) Rear wheel sensor ombination meter 24 a. US models b. anada models c. US models d. anada models WF Rear wheel sensor R Front wheel sensor 19-11

12 < FUT SS > omponent escription S [S] F: omponent parts ump otor S actuator and electric unit (control unit) ctuator relay (ain relay) Solenoid valve Wheel sensor S warning lamp rake warning lamp SUT- Function (S) Reference -25, "escription" -27, "escription" -32, "escription" -16, "escription" -37, "escription" -38, "escription" F: FUT SUT- can display each diagnostic item using the diagnostic test modes shown following. Work support SF-SS RSUTS peration rocedure 1. Turn ignition switch FF. 2. onnect SUT- to data link connector. 3. Turn ignition switch. 4. Start engine and drive vehicle at 30 km/h (19 ) or more for approximately 1 minute. 5. fter stopping vehicle, with the engine running, touch S, SF- RSUTS in order on the SUT- screen. 6. The self-diagnostic results are displayed. heck S warning lamp. f FUR is displayed. Refer to -37, "omponent Function heck". 7. erform the appropriate inspection from display item list, and repair or replace the malfunctioning component. Refer to "isplay tem ist". 8. Start engine and drive vehicle at 30 km/h (19 ) or more for approximately 1 minute. UT: When the wheel sensor malfunctions, after inspecting the wheel sensor system, the S warning lamp and brake warning lamp will not turn FF even when the system is normal unless the vehicle is driven at approximately 30 km/h (19 ) or more for approximately 1 minute. rase emory iagnostic test mode Self-diagnostic results ata monitor ctive test U part number Function test diagnostic support monitor 1. Turn ignition switch FF. 2. Start engine and touch S, SF- RSUTS, RS RY in order on the SUT- screen to erase the diagnostic memory. f S is not indicated, go to -51, "SUT- ata ink onnector () ircuit". -12 Function This mode enables a technician to adjust some devices faster and more accurately by following the indications on SUT-. Self-diagnostic results can be read and erased quickly. nput/utput data in the S actuator and electric unit (control unit) can be read. iagnostic test mode is which SUT- drives some actuators apart from the S actuator and electric unit (control unit) and also shifts some parameters in a specified range. S actuator and electric unit (control unit) part number can be read. erformed by SUT- instead of a technician to determine whether each system is or. The results of transmit/receive diagnosis of communication can be read.

13 < FUT SS > S [S] UT: f the diagnostic memory is not erased, re-perform the operation from step erform self-diagnosis again, and make sure that diagnostic memory is erased. 4. rive vehicle at 30 km/h (19 ) or more for approximately 1 minute as the final inspection, and make sure that the S warning lamp and brake warning lamp turn FF. T: rake warning lamp will turn on in case of parking brake operation (when switch is ) or of brake fluid level switch operation (when brake fluid is insufficient). isplay tem ist isplay item alfunction detecting condition heck item RR R SSR-1 [1101] *1 RR SSR-1 [1102] *1 FR R SSR-1 [1103] *1 ircuit of rear R wheel sensor is open. r when the sensor power voltage is outside the standard. ircuit of rear wheel sensor is open. r when the sensor power voltage is outside the standard. ircuit of front R wheel sensor is open. r when the sensor power voltage is outside the standard. -16, "iagnosis rocedure" (ote 1) FR SSR-1 [1104] *1 RR R SSR-2 [1105] *1 RR SSR-2 [1106] *1 FR R SSR-2 [1107] *1 ircuit of front wheel sensor is open. r when the sensor power voltage is outside the standard. When the circuit in the rear R wheel sensor is short-circuited. r when the distance between the wheel sensor and sensor rotor is too large and the sensor pulse cannot be recognized by the control unit. When the circuit in the rear wheel sensor is short-circuited. r when the distance between the wheel sensor and sensor rotor is too large and the sensor pulse cannot be recognized by the control unit. When the circuit in the front R wheel sensor is short-circuited. r when the distance between the wheel sensor and sensor rotor is too large and the sensor pulse cannot be recognized by the control unit. -19, "iagnosis rocedure" (ote 1) FR SSR- 2 [1108] *1 When the circuit in the front wheel sensor is short-circuited. r when the distance between the wheel sensor and sensor rotor is too large and the sensor pulse cannot be recognized by the control unit. TTRY VT [R] [1109] When the S actuator and electric unit (control unit) power supply voltage is lower than normal. -22, "iagnosis rocedure" TRR FUR [1110] *2 When there is an internal malfunction in the S actuator and electric unit (control unit). -24, "iagnosis rocedure" U TR [1111] uring the actuator motor operating with, when the actuator motor turns FF, or when the control line for actuator motor relay is open. uring the actuator motor operating with FF, when the actuator motor turns, or when the control line for relay is shorted to ground. -25, "iagnosis rocedure" RY [1114] S SSR [R S] [1115] FR S S [1120] uring the actuator relay operating with FF, when the actuator relay turns. r when the control line for the relay is shorted to the ground. uring the actuator relay operating with, when the actuator relay turns FF, or when the control line for the relay is open. When wheel sensor input signal is malfunctioning. When the control unit detects a malfunction in the front left inlet solenoid circuit. -27, "iagnosis rocedure" -29, "iagnosis rocedure" (ote 1) -32, "iagnosis rocedure" FR UT S S [1121] When the control unit detects a malfunction in the front left outlet solenoid circuit. -34, "iagnosis rocedure" FR R S S [1122] When the control unit detects a malfunction in the front right inlet solenoid circuit. -32, "iagnosis rocedure" -13

14 < FUT SS > S [S] isplay item alfunction detecting condition heck item FR R UT S S [1123] RR S S [1124] RR UT S S [1125] RR R S S [1126] RR R UT S S [1127] RUT [U1000] *3 *1: e sure to confirm the S warning lamp illuminates when the ignition switch is turned after repairing the shorted sensor circuit, but the lamp turns off when driving the vehicle over 30 km/h (19 ) for approximately 1 minute in accordance with SF-SS RUR. *2: When "TRR FUR" is displayed, check to see if the S warning lamp is burned out, and check the circuit between the S warning lamp and S actuator and electric unit (control unit) for open or short. Then, check the S actuator and electric unit (control unit) and circuit. *3: When malfunctions are detected in several systems, including communication circuit [U1000], troubleshoot communiation circuit first. Refer to -36, "iagnosis rocedure". T TR When the control unit detects a malfunction in the front right outlet solenoid circuit. When the control unit detects a malfunction in the rear left inlet solenoid circuit. When the control unit detects a malfunction in the rear left outlet solenoid circuit. When the control unit detects a malfunction in the rear right inlet solenoid circuit. When the control unit detects a malfunction in the rear right outlet solenoid circuit. When there is a malfunction in the communication circuit. -34, "iagnosis rocedure" -32, "iagnosis rocedure" -34, "iagnosis rocedure" -32, "iagnosis rocedure" -34, "iagnosis rocedure" -36, "iagnosis rocedure" isplay tem ist UT: The display shows the control unit calculation data, so a normal value might be displayed even in the event the output circuit (harness) is open or short - circuited. tem (Unit) FR SSR (km/h) FR R SSR (km/h) RR SSR (km/h) RR R SSR (km/h) ST SW (/FF) TTRY VT (V) FR R S (/FF) FR R UT S (/FF) FR S (/FF) FR UT S (/FF) RR R S (/FF) RR R UT S (/FF) U UT SS ata monitor item selection S- S ST FR U Remarks Wheel speed calculated by front wheel sensor signal is displayed. Wheel speed calculated by front R wheel sensor signal is displayed. Wheel speed calculated by rear wheel sensor signal is displayed. Wheel speed calculated by rear R wheel sensor signal is displayed. Stop lamp switch (/FF) status is displayed. Voltage supplied to S actuator and electric unit (control unit) is displayed. Front R S solenoid (/FF) status is displayed. Front R UT S solenoid (/FF) status is displayed. Front S solenoid (/FF) status is displayed. Front UT S solenoid (/FF) status is displayed. Rear R S solenoid (/FF) status is displayed. Rear R UT S solenoid (/FF) status is displayed. -14

15 < FUT SS > S [S] RR S (/FF) RR UT S (/FF) TR RY (/FF) TUTR RY (/FF) S WR (/FF) Rear S solenoid (/FF) status is displayed. Rear UT S solenoid (/FF) status is displayed. S motor relay signal (/FF) status is displayed. S actuator relay signal (/FF) status is displayed. S warning lamp (/FF) status is displayed. : pplicable : ot applicable ote: brief moment of /FF condition occurs every 20 seconds after ignition switch turned. This is not malfunction because it is an operation for checking. TV TST UT: o not perform active test while driving vehicle. ake sure to completely bleed air from brake system. The active test cannot be performed with the S warning lamp and brake warning lamp are. S warning lamp and brake warning lamp are during active test. peration rocedure T: When active test is performed while depressing the pedal, the pedal depression amount will change. This is normal. (nly solenoid valve and S motor) TST S ST is displayed 10 seconds after operation start. fter TST S ST is displayed, to perform test again, touch to restart the process. Solenoid Valve T: The example shown is for front right wheel. The procedure for the other wheels is the same as given below. When performing an active test of the S function, select the " SS" for each test item.n addition, when performing an active test of the TS function, select the item menu for each test item. For S solenoid valve, touch U,, and W on the display screen. For S solenoid valve (T), touch U, T U, T and confirm that solenoid valves (, UT) operate as shown in the table below. peration S solenoid valve S solenoid valve (T) (ote) U W U T U T FR R S FF FF FF FF FR R UT S FF FF * FF FF FF *: for 1 to 2 seconds after the touch, and then FF ote: brief moment of /FF condition occurs every 20 seconds after ignition switch turned. This is not malfunction because it is an operation for checking. S otor Touch and FF on screen. ake sure motor relay and actuator relay operates as shown in table below. peration FF TR RY FF TUTR RY (ote) ote: brief moment of /FF condition occurs every 20 seconds after ignition switch turned. This is not malfunction because it is an operation for checking. -15

16 < T SS > 1101, 1102, 1103, 1104 W SSR-1 T SS 1101, 1102, 1103, 1104 W SSR-1 escription [S] F: When the sensor rotor rotates, the magnetic field changes. t converts the magnetic field changes to current signals (rectangular wave) and transmits them to the S actuator and electric unit (control unit). T ogic T TT T isplay item alfunction detected condition ossible cause RR R SSR-1 RR SSR-1 FR R SSR-1 FR SSR-1 T FRT RUR 1. SF-SS RSUTS heck the self-diagnosis results. ircuit of rear R wheel sensor is open. r when the sensor power voltage is outside the standard. ircuit of rear wheel sensor is open. r when the sensor power voltage is outside the standard. ircuit of front R wheel sensor is open. r when the sensor power voltage is outside the standard. ircuit of front wheel sensor is open. r when the sensor power voltage is outside the standard. F: arness or connector Wheel sensor S actuator and electric unit (control unit) Self-diagnosis results RR R SSR-1 RR SSR-1 FR R SSR-1 FR SSR-1 s above displayed on the self-diagnosis display? YS >> roceed to diagnosis procedure. Refer to -16, "iagnosis rocedure". >> ST T onfirmation rocedure iagnosis rocedure F: UT: o not check between wheel sensor terminals. ST RUR 1. TR Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector 26 and malfunctioning wheel sensor connector 41 (FR-R), 19 (FR-), 43 (RR-R and RR-). heck terminal to see if it is deformed, disconnected, loose, etc., Repair or replace it if any malfunction condition is found. YS >> T 2 >> Repair or replace as necessary. 2. W SSR UTUT S 1. isconnect connectors from wheel sensor of malfunction code o. 2. onnect S active wheel sensor tester (-45741) to wheel sensor using appropriate adapter. 3. Turn on the S active wheel sensor tester power switch. T: -16

17 < T SS > 1101, 1102, 1103, 1104 W SSR-1 [S] The green WR indicator should illuminate. f the WR indicator does not illuminate, replace the battery in the S active wheel sensor tester before proceeding. 4. Spin the wheel of the vehicle by hand and observe the red SSR indicator on the S active wheel sensor tester. The red SSR indicator should flash on and off to indicate an output signal. T: f the red SSR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest. oes the S active wheel sensor tester detect a signal? YS >> T 3 >> Replace wheel sensor. Refer to -63, "Removal and nstallation". 3. TR heck air pressure, wear and size. re air pressure, wear and size within standard? YS >> T 4 >> djust air pressure, or replace tire. erform the self-diagnosis, and make sure that the result shows T S TT. 4. W RS heck wheel bearing axial end play. Refer to FX-5, "nspection" (front) or RX-5, "n-vehicle Service" (rear). YS >> T 5 >> Repair or replace as necessary. Refer to FX-7, "Removal and nstallation" (front) or RX-6, "Removal and nstallation" (rear). 5. W SSR RSS 1. Turn ignition switch FF and disconnect malfunctioning wheel sensor connector 41 (FR-R), 19 (FR-), 43 (RR-R and RR-) and S actuator and electric unit (control unit) connector heck continuity between terminals. (lso check continuity when steering wheel is turned right and left and when sensor harness inside the wheel house is moved.) Wheel ower supply circuit Signal circuit round circuit S actuator and electric unit (control unit) () Wheel sensor Front () Rear () S actuator and electric unit (control unit) () YS >> T 6 >> Repair or replace malfunctioning components. -17 Wheel sensor Front () Rear () S actuator and electric unit (control unit) (Signal - round) () F0004ZZ S actuator and electric unit (control unit) () (Signal) - ody round Front R , 10-1, 4 9, 10 - ody ground Front , 5-1, 4 16, 5 - ody ground Rear R , 19-1, 4 8, 19 - ody ground Rear , 17-1, 4 6, 17 - ody ground ower supply circuit Signal circuit round circuit : ontinuity should exist. : ontinuity should exist. : ontinuity should not exist.

18 < T SS > 1101, 1102, 1103, 1104 W SSR-1 erform the self-diagnosis, and make sure that the result shows T S TT. 6. W SSR WR SUY RUT 1. Reconnect S actuator and electric unit (control unit) connector. 2. Turn ignition switch and check between wheel sensor harness connector power supply terminal and ground. [S] Wheel Wheel sensor round Voltage Front R () Front () 1 Rear () 8 V or more Rear R () 3 YS >> nspection end. >> Replace S actuator and electric unit (control unit). omponent nspection F0005ZZ F: T TR n T TR, select FR SSR, FR R SSR, RR SSR, and RR R S- SR, and check the vehicle speed. Wheel sensor FR SSR FR R SSR RR SSR RR R SSR Vehicle speed (T TR) early matches the speedometer display (±10% or less) YS >> ST >> o to diagnosis procedure. Refer to -16, "iagnosis rocedure". -18

19 < T SS > 1105, 1106, 1107, 1108 W SSR , 1106, 1107, 1108 W SSR-2 escription [S] F: When the sensor rotor rotates, the magnetic field changes. t converts the magnetic field changes to current signals (rectangular wave) and transmits them to the S actuator and electric unit (control unit). T ogic T TT T isplay item alfunction detected condition ossible cause RR R SSR-2 RR SSR-2 FR R SSR-2 FR SSR-2 T FRT RUR 1. SF-SS RSUTS heck the self-diagnosis results. ircuit of rear R wheel sensor is open. r when the sensor power voltage is outside the standard. ircuit of rear wheel sensor is open. r when the sensor power voltage is outside the standard. ircuit of front R wheel sensor is open. r when the sensor power voltage is outside the standard. ircuit of front wheel sensor is open. r when the sensor power voltage is outside the standard. F: arness or connector Wheel sensor S actuator and electric unit (control unit) s above displayed on the self-diagnosis display? YS >> roceed to diagnosis procedure. Refer to -19, "iagnosis rocedure". >> ST iagnosis rocedure Self-diagnosis results RR R SSR-2 RR SSR-2 FR R SSR-2 FR SSR-2 UT: o not check between wheel sensor terminals. ST RUR F: TR Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector 26 and malfunctioning wheel sensor connector 41 (FR-R), 19 (FR-), 43 (RR-R and RR-). heck terminal to see if it is deformed, disconnected, loose, etc., Repair or replace it if any malfunction condition is found. YS >> T 2 >> Repair or replace as necessary. 2. W SSR UTUT S 1. isconnect connectors from wheel sensor of malfunction code o. 2. onnect S active wheel sensor tester (-45741) to wheel sensor using appropriate adapter. 3. Turn on the S active wheel sensor tester power switch. T: The green WR indicator should illuminate. f the WR indicator does not illuminate, replace the battery in the S active wheel sensor tester before proceeding. -19

20 < T SS > 1105, 1106, 1107, 1108 W SSR-2 [S] 4. Spin the wheel of the vehicle by hand and observe the red SSR indicator on the S active wheel sensor tester. The red SSR indicator should flash on and off to indicate an output signal. T: f the red SSR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest. oes the S active wheel sensor tester detect a signal? YS >> T 3 >> Replace wheel sensor. Refer to -63, "Removal and nstallation". 3. TR heck air pressure, wear and size. re air pressure, wear and size within standard? YS >> T 4 >> djust air pressure, or replace tire. erform the self-diagnosis, and make sure that the result shows T S TT. 4. W RS heck wheel bearing axial end play. Refer to FX-5, "nspection" (front) or RX-5, "n-vehicle Service" (rear). YS >> T 5 >> Repair or replace as necessary. Refer to FX-7, "Removal and nstallation" (front) or RX-6, "Removal and nstallation" (rear). 5. W SSR RSS 1. Turn ignition switch FF and disconnect malfunctioning wheel sensor connector 41 (FR-R), 19 (FR-), 43 (RR-R and RR-) and S actuator and electric unit (control unit) connector heck continuity between terminals. (lso check continuity when steering wheel is turned right and left and when sensor harness inside the wheel house is moved.) F0004ZZ Wheel ower supply circuit Signal circuit round circuit S actuator and electric unit (control unit) () Wheel sensor Front () Rear () S actuator and electric unit (control unit) () YS >> T 6 >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. -20 Wheel sensor Front () Rear () S actuator and electric unit (control unit) (Signal - round) () S actuator and electric unit (control unit) () (Signal) - ody round Front R , 10-1, 4 9, 10 - ody ground Front , 5-1, 4 16, 5 - ody ground Rear R , 19-1, 4 8, 19 - ody ground Rear , 17-1, 4 6, 17 - ody ground ower supply circuit Signal circuit round circuit : ontinuity should exist. : ontinuity should exist. : ontinuity should not exist.

21 < T SS > 1105, 1106, 1107, 1108 W SSR-2 6. W SSR WR SUY RUT 1. Reconnect S actuator and electric unit (control unit) connector. 2. Turn ignition switch and check between wheel sensor harness connector power supply terminal and ground. [S] Wheel Wheel sensor round Voltage Front R () Front () 1 Rear () 8 V or more Rear R () 3 YS >> nspection end. >> Replace S actuator and electric unit (control unit). omponent nspection F0005ZZ F: T TR n T TR, select FR SSR, FR R SSR, RR SSR, and RR R S- SR, and check the vehicle speed. Wheel sensor FR SSR FR R SSR RR SSR RR R SSR Vehicle speed (T TR) early matches the speedometer display (±10% or less) YS >> ST >> o to diagnosis procedure. Refer to -19, "iagnosis rocedure". -21

22 < T SS > T 1109 TTRY VT [R] T 1109 TTRY VT [R] escription Supplies electric power to the S actuator and electric unit (control unit). T ogic [S] F: F: T TT T isplay item alfunction detected condition ossible cause 1109 TTRY VT [R] T FRT RUR 1. SF-SS RSUTS heck the self-diagnosis results. When the S actuator and electric unit (control unit) power supply voltage is lower than normal. arness or connector S actuator and electric unit (control unit) Self-diagnosis results TTRY VT [R] s above displayed on the self-diagnosis display? YS >> roceed to diagnosis procedure. Refer to -22, "iagnosis rocedure". >> ST iagnosis rocedure F: ST RUR 1. TR 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector 26, check terminal for deformation, disconnection, looseness, and so on. f any malfunction is found, repair or replace terminal. 2. Reconnect connector and perform self-diagnosis. YS >> ST >> T 2 2. S TUTR TR UT (TR UT) WR SUY RUT RU RUT 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector heck voltage between S actuator and electric unit (control unit) harness connector 26 terminal 18 and ground. F0006ZZ -22

23 < T SS > T 1109 TTRY VT [R] [S] S actuator and electric unit (control unit) round ondition Voltage Turn ignition switch FF. 4. heck continuity between S actuator and electric unit (control unit) harness connector 26 terminal 1, 4 and ground. gnition switch attery voltage (pprox. 12 V) gnition switch FF pprox. 0 V S actuator and electric unit (control unit) round ontinuity 1, 4 Yes YS >> heck battery for terminal looseness, low voltage, etc. f any malfunction is found, repair malfunctioning parts. erform the self-diagnosis, and make sure that the result shows T S TT. >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. F0007ZZ -23

24 < T SS > T 1110 TR FUR T ogic T 1110 TR FUR [S] F: T TT T isplay item alfunction detected condition ossible cause 1110 TRR FUR T FRT RUR 1. SF-SS RSUTS heck the self-diagnosis results. When there is an internal malfunction in the S actuator and electric unit (control unit). S actuator and electric unit (control unit) Self-diagnosis results TRR FUR s above displayed on the self-diagnosis display? YS >> roceed to diagnosis procedure. Refer to -24, "iagnosis rocedure". >> ST iagnosis rocedure F: ST RUR 1.R S TUTR TR UT (TR UT) UT: Replace S actuator and electric unit (control unit) when self-diagnostic result shows items other than that applicable. >> Replace S actuator and electric unit (control unit). -24

25 < T SS > T 1111 U TR escription T 1111 U TR [S] F: U The pump returns the brake fluid stored in the reservoir to the master cylinder by reducing the pressure. TR The motor drives the pump according to the signals transmitted by the S actuator and electric unit (control unit). T ogic T TT T isplay item alfunction detected condition ossible cause 1111 U TR T FRT RUR 1. SF-SS RSUTS heck the self-diagnosis results. uring the actuator motor operating with, when the actuator motor turns FF, or when the control line for actuator motor relay is open. uring the actuator motor operating with FF, when the actuator motor turns, or when the control line for relay is shorted to ground. F: arness or connector S actuator and electric unit (control unit) Self-diagnosis results U TR s above displayed on the self-diagnosis display? YS >> roceed to diagnosis procedure. Refer to -25, "iagnosis rocedure". >> ST iagnosis rocedure F: ST RUR 1. TR 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector 26, check terminal for deformation, disconnection, looseness, and so on. f any malfunction is found, repair or replace terminal. 2. Reconnect connector and perform self-diagnosis. YS >> nspection end. >> T 2 2. S TR TR RY WR SUY RUT 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector

26 < T SS > T 1111 U TR 2. heck voltage between the S actuator and electric unit (control unit) harness connector 26 terminal 2 and ground. [S] S actuator and electric unit (control unit) round Voltage 2 attery voltage (pprox. 12 V) YS >> T 3 >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. 3. S TUTR TR UT (TR UT) RU RUT heck continuity between S actuator and electric unit (control unit) harness connector 26 terminal 1, 4 and ground. WF0501 S actuator and electric unit (control unit) round ontinuity 1, 4 Yes YS >> Replace S actuator and electric unit (control unit). erform the self-diagnosis, and make sure that the result shows T S TT. >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. omponent nspection F0007ZZ F: TV TST 1. n TV TST, select S TR. 2. Touch and FF on screen. ake sure motor relay and actuator relay operates as shown in table below. peration FF TR RY FF TUTR RY (ote) T: brief moment of /FF condition occurs every 20 seconds after ignition switch turned. This is not malfunction because it is an operation for checking. YS >> ST >> o to diagnosis procedure. Refer to -25, "iagnosis rocedure". -26

27 < T SS > T 1114 RY escription T 1114 RY [S] F: ctivates or deactivates each solenoid valve according to the signals transmitted by the S actuator and electric unit (control unit). T ogic T TT T isplay item alfunction detected condition ossible cause 1114 RY T FRT RUR 1. SF-SS RSUTS heck the self-diagnosis results. uring the actuator relay operating with FF, when the actuator relay turns, or when the control line for the relay is shorted to the ground. uring the actuator relay operating with, when the actuator relay turns, or when the control line for the relay is open. F: arness or connector S actuator and electric unit (control unit) Self-diagnosis results RY s above displayed on the self-diagnosis display? YS >> roceed to diagnosis procedure. Refer to -27, "iagnosis rocedure". >> ST iagnosis rocedure F: ST RUR 1. TR 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector 26, check terminal for deformation, disconnection, looseness, and so on. f any malfunction is found, repair or replace terminal. 2. Reconnect connector and perform self-diagnosis. YS >> nspection end. >> T 2 2. S TUTR RY WR SUY RUT 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector heck voltage between S actuator and electric unit (control unit) harness connector 26 terminal 3 and ground. S actuator and electric unit (control unit) round Voltage 3 attery voltage (pprox. 12 V) YS >> T 3 >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. WF

28 T 1114 RY < T SS > 3. S TUTR RY RU RUT heck continuity between S actuator and electric unit (control unit) harness connector 26 terminal 1, 4 and ground. [S] S actuator and electric unit (control unit) round ontinuity 1, 4 Yes YS >> Replace S actuator and electric unit (control unit). erform the self-diagnosis, and make sure that the result shows T S TT. >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. omponent nspection F0007ZZ F: TV TST 1. n TV TST, select S TR. 2. Touch and FF on screen. ake sure motor relay and actuator relay operates as shown in table below. peration FF TR RY FF TUTR RY (ote) T: brief moment of /FF condition occurs every 20 seconds after ignition switch turned. This is not malfunction because it is an operation for checking. YS >> ST >> o to diagnosis procedure. Refer to -27, "iagnosis rocedure". -28

29 < T SS > T 1115 S SSR [R S] T 1115 S SSR [R S] escription [S] F: When the sensor rotor rotates, the magnetic field changes. t converts the magnetic field changes to current signals (rectangular wave) and transmits them to the S actuator and electric unit (control unit). T ogic T TT T isplay item alfunction detected condition ossible cause 1115 S SSR [R S] T FRT RUR 1. SF-SS RSUTS heck the self-diagnosis results. s above displayed on the self-diagnosis display? YS >> roceed to diagnosis procedure. Refer to -29, "iagnosis rocedure". >> nspection end. iagnosis rocedure Self-diagnosis results S SSR [R S] UT: o not check between wheel sensor terminals. ST RUR When wheel sensor input signal is malfunctioning. -29 F: arness or connector Wheel sensor S actuator and electric unit (control unit) F: TR heck air pressure, wear and size. re air pressure, wear and size within standard? YS >> T 2 >> djust air pressure, or replace tire. erform the self-diagnosis, and make sure that the result shows T S TT. 2. SSR SSR RTR heck sensor rotor for damage. heck wheel sensor for damage, disconnection or looseness. YS >> T 3 >> Repair wheel sensor mount or replace sensor rotor. Then perform the self-diagnosis. erform the self-diagnosis, and make sure that the result shows T S TT. 3. TR 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector 26 and malfunctioning wheel sensor connector 41 (FR-R), 19 (FR-), 43 (RR-R and RR-). heck terminal to see if it is deformed, disconnected, loose, etc., Repair or replace it if any malfunction condition is found. 2. Reconnect connectors and then perform the self-diagnosis. Refer to -12, "SUT- Function (S)". YS >> nspection end.

30 < T SS > >> T 4 T 1115 S SSR [R S] 4. W SSR RSS 1. Turn ignition switch FF and disconnect malfunctioning wheel sensor connector 41 (FR-R), 19 (FR-), 43 (RR-R and RR-) and S actuator and electric unit (control unit) connector heck continuity between terminals. (lso check continuity when steering wheel is turned right and left and when sensor harness inside the wheel house is moved.) [S] F0004ZZ Wheel YS >> T 5 >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. 5. W SSR WR SUY RUT 1. Replace wheel sensor that resulted in malfunction by self-diagnosis. 2. Reconnect connectors, drive vehicle at 30 km/h (19 ) or more for approximately 1 minute, and then perform self-diagnosis. s above displayed on the self-diagnosis display? YS >> nspection end. >> Replace S actuator and electric unit (control unit). erform the self-diagnosis, and make sure that the result shows " T S TT". omponent nspection T ST ower supply circuit Signal circuit round circuit S actuator and electric unit (control unit) () Wheel sensor Front () Rear () S actuator and electric unit (control unit) () Wheel sensor Front () Rear () S actuator and electric unit (control unit) (Signal - round) () S actuator and electric unit (control unit) () (Signal) - ody round Front R , 10-1, 4 9, 10 - ody ground Front , 5-1, 4 16, 5 - ody ground Rear R , 19-1, 4 8, 19 - ody ground Rear , 17-1, 4 6, 17 - ody ground ower supply circuit Signal circuit round circuit : ontinuity should exist. : ontinuity should exist. : ontinuity should not exist. F: T TR n T TR, select FR SSR, FR R SSR, RR SSR, and RR R S- SR, and check the vehicle speed. Wheel sensor Vehicle speed (T TR) -30

31 < T SS > T 1115 S SSR [R S] [S] FR SSR FR R SSR RR SSR RR R SSR early matches the speedometer display (±10% or less) YS >> nspection end. >> o to diagnosis procedure. Refer to -29, "iagnosis rocedure". -31

32 < T SS > 1120, 1122, 1124, 1126 S S 1120, 1122, 1124, 1126 S S escription [S] F: The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the signals transmitted by the S actuator and electric unit (control unit). T ogic T TT T isplay item alfunction detected condition ossible cause FR S S FR R S S RR S S RR R S S T FRT RUR 1. SF-SS RSUTS heck the self-diagnosis results. When the control unit detects a malfunction in the front inlet solenoid circuit. When the control unit detects a malfunction in the front R inlet solenoid circuit. When the control unit detects a malfunction in the rear inlet solenoid circuit. When the control unit detects a malfunction in the rear R inlet solenoid circuit. F: S actuator and electric unit (control unit) Self-diagnosis results FR S S FR R S S RR S S RR R S S s above displayed on the self-diagnosis display? YS >> roceed to diagnosis procedure. Refer to -32, "iagnosis rocedure". >> nspection end. iagnosis rocedure F: ST RUR 1. TR 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector 26, check terminal for deformation, disconnection, looseness, and so on. f any malfunction is found, repair or replace terminal. 2. Reconnect connector and perform self-diagnosis. YS >> nspection end. >> T 2 2. S TUTR RY WR SUY RUT 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector

33 < T SS > 1120, 1122, 1124, 1126 S S 2. heck voltage between S actuator and electric unit (control unit) harness connector 26 terminal 3 and ground. [S] S actuator and electric unit (control unit) round Voltage 3 attery voltage (pprox. 12 V) YS >> T 3 >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. 3. S TUTR RY RU RUT heck continuity between S actuator and electric unit (control unit) harness connector 26 terminal 1, 4 and ground. WF0499 S actuator and electric unit (control unit) round ontinuity 1, 4 Yes YS >> Replace S actuator and electric unit (control unit). erform the self-diagnosis, and make sure that the result shows T S TT. >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. omponent nspection F0007ZZ F: TV TST 1. Select each test menu item on TV TST. 2. n the display, touch U,, and W, and check that the system operates as shown in the table below. T: The example below is for front right wheel. The procedure for the other wheels is the same as given below. S solenoid valve peration (ote) U W FR R S FF FR R UT S FF FF * *: for 1 to 2 seconds after the touch, and then FF. T: brief moment of /FF condition occurs every 20 seconds after ignition switch turned. This is not malfunction because it is an operation for checking. YS >> nspection end. >> o to diagnosis procedure. Refer to -32, "iagnosis rocedure". -33

34 < T SS > 1121, 1123, 1125, 1127 UT S S 1121, 1123, 1125, 1127 UT S S escription [S] F: The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the signals transmitted by the S actuator and electric unit (control unit). T ogic T TT T isplay item alfunction detected condition ossible cause FR UT S S FR R UT S S RR UT S S RR R UT S S T FRT RUR 1. SF-SS RSUTS heck the self-diagnosis results. When the control unit detects a malfunction in the front outlet solenoid circuit. When the control unit detects a malfunction in the front R outlet solenoid circuit. When the control unit detects a malfunction in the rear outlet solenoid circuit. When the control unit detects a malfunction in the rear R outlet solenoid circuit. F: S actuator and electric unit (control unit) Self-diagnosis results FR UT S S FR R UT S S RR UT S S RR R UT S S s above displayed on the self-diagnosis display? YS >> roceed to diagnosis procedure. Refer to -34, "iagnosis rocedure". >> nspection end. iagnosis rocedure F: ST RUR 1. TR 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector 26, check terminal for deformation, disconnection, looseness, and so on. f any malfunction is found, repair or replace terminal. 2. Reconnect connector and perform self-diagnosis. YS >> nspection end. >> T 2 2. S TUTR RY WR SUY RUT 1. Turn ignition switch FF and disconnect S actuator and electric unit (control unit) connector

35 < T SS > 1121, 1123, 1125, 1127 UT S S 2. heck voltage between S actuator and electric unit (control unit) harness connector 26 terminal 3 and ground. [S] S actuator and electric unit (control unit) round Voltage 3 attery voltage (pprox. 12 V) YS >> T 3 >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. 3. S TUTR RY RU RUT heck continuity between S actuator and electric unit (control unit) harness connector 26 terminal 1, 4 and ground. WF0499 S actuator and electric unit (control unit) round ontinuity 1, 4 Yes YS >> Replace S actuator and electric unit (control unit). erform the self-diagnosis, and make sure that the result shows T S TT. >> Repair or replace malfunctioning components. erform the self-diagnosis, and make sure that the result shows T S TT. omponent nspection F0007ZZ F: TV TST 1. Select each test menu item on TV TST. 2. n the display, touch U,, and W, and check that the system operates as shown in the table below. T: The example below is for front right wheel. The procedure for the other wheels is the same as given below. S solenoid valve peration (ote) U W FR R S FF FR R UT S FF FF * *: for 1 to 2 seconds after the touch, and then FF. T: brief moment of /FF condition occurs every 20 seconds after ignition switch turned. This is not malfunction because it is an operation for checking. YS >> nspection end. >> o to diagnosis procedure. Refer to -34, "iagnosis rocedure". -35