ABS 2002 RAV4 (EWD466U) FROM POWER SOURCE SYSTEM (SEE PAGE 46) 40A ABS 1 10A GAUGE 10A ECU IG 30A ABS 2 10A STOP J 5 JUNCTION CONNECTOR R L R W R W

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Edwin Rogers
5 years ago
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1 AS FOM POE SOUCE SYSTEM (SEE PAE 46) 0A AUE 30A AS 40A AS 0A ECU I 0A STOP 9 J 5 E 4 E E 8 J () 3 H 5 (P) ID 46 6 () J 5 (S) Y S 8 STOP LIHT S 6 H E 8 ID (P) S +M I STP A 4 AS ACTUATO AND ECU PK ND L VS ND ND (S) M (*) I 3 (4D) (4D) (4D) 6 3Q 9 ND I 3C P 4 ND 3 PK PASSENE SIDE J/ ECU AKE FLUID LEVEL ANIN S K P 3 PAKIN AKE S 4 F I I E 5 (*) (*) I I 7 I 6 I (4D) (4D) 3 A AS DECELEATION SENSO (4D) ND L VS E II EA 00 AV4 (ED466U)

2 FOM POE SOUCE SYSTEM (SEE PAE 46) * : SHIELDED 0A I P () AS D8 A 3 A Y IA AKE D7 5 M 0 D IA C A, C3, C5 D COMINATION METE D DATA LINK 3 A4 () () SIL IA A P L() P L() P L TC TS IA J 4 A P P P () IA A C A J 4 J A, J A L D/ TS TC A 4 AS ACTUATO AND ECU FL+ FL F+ F L+ L I 0 I 9 I 4 I Y Y A 5 AS SPEED SENSO FONT LH A 6 AS SPEED SENSO FONT H A7 AS SPEED SENSO EA LH A8 AS SPEED SENSO EA H 00 AV4 (ED466U) 3

3 AS SYSTEM OUTLINE AS system This system controls the respective brake fluid pressures acting on the disc brake cylinders of the right front wheel, left front wheel and rear wheels when the brakes are applied in a panic stop so that the wheels do not lock. This results in improved directional stability and steerability during panic braking. Front and rear braking force distribution system Using the hydraulic controlling device, this system distributes the braking force to the front and rear wheel in appropriately according to the running condition of the vehicle.. INPUT SINALS () Speed sensor signal The speed of the wheels is detected and input to TEMINALS FL+, F+, L+ and + of the AS actuator and ECU. () Stop light S signal A signal is input to TEMINAL STP of the AS actuator and ECU when the brake pedal is depressed.. SYSTEM OPEATION During sudden braking the AS actuator and ECU has signals input from each sensor, which controls the current to the solenoid inside the actuator and lets the hydraulic pressure acting on each wheel cylinder escape to the reservoir. The pump inside the actuator is also operating at this time and it returns the brake fluid from the reservoir to the master cylinder, thus preventing locking of the vehicle wheels. If the AS actuator and ECU judges that the hydraulic pressure acting on the wheel cylinder is insufficient, the current on the solenoid is controlled and the hydraulic pressure is increased. Holding of the hydraulic pressure is also controlled by the AS actuator and ECU, by the same method as above. Pressure reduction, holding and increase are repeated to maintain vehicle stability and to improve steerability during sudden braking. SEVICE HINTS A5, A6 AS SPEED SENSO FONT LH, H : Approx..6 kω (0 C, 68 F) A7, A8 AS SPEED SENSO EA LH, H : Approx.. kω (5 C, 77 F) A4 AS ACTUATO AND ECU, 3 OUND : Always approx. volts 5 OUND : Approx. volts with the ignition S at ON position 0 OUND : Approx. volts with the brake pedal depressed, 4 OUND : Always continuity : PATS LOCATION Code See Page Code See Page Code See Page A J 33 A5 30 C A 3 J4 33 A6 30 C3 3 J5 33 A 3 C5 D 3 P3 33 A7 34 D 3 P4 33 A8 34 J A 33 S8 33 ;;; ;;; : LOCK AND IE HANESS Code See Page Junction lock and ire Harness (Connector Location) E Engine oom Main ire and Engine oom J/ (Engine Compartment Left) E 4 Engine oom Main ire and Driver Side J/ (Lower Finish Panel) F 4 Floor ire and Driver Side J/ (Lower Finish Panel) H J M 5 Instrument Panel ire and Driver Side J/ (Lower Finish Panel) 3 8 Engine oom Main ire and Passenger Side J/ (ehind the love ox) 3C 8 Floor ire and Passenger Side J/ (ehind the love ox) 3 3Q 8 Instrument Panel ire and Passenger Side J/ (ehind the love ox) 4 00 AV4 (ED466U)

4 : JOININ IE HANESS AND IE HANESS Code See Page Joining ire Harness and ire Harness (Connector Location) IA 38 Instrument Panel ire and Engine oom Main ire (Left Kick Panel) ID 38 Instrument Panel ire and Switch ire (Near the Driver Side J/) I 40 Engine oom Main ire and Floor ire (ight Kick Panel) : OUND POINTS Code See Page round Points Location EA 36 Front ight Side of Fender Apron II 38 ight Kick Panel : SPLICE POINTS Code See Page ire Harness with Splice Points Code See Page ire Harness with Splice Points E I3 40 Engine oom Main ire 36 Engine oom Main ire E5 00 AV4 (ED466U) 5

5 MEMO 6 00 AV4 (ED466U)

ABS and Tire Pressure Warning System

ABS and Tire Pressure Warning System S and Tire Pressure arning System D Data Link 3 * : utomatic /C * : Except * SIL TC TS 7 3 8 K 9 L P- 4 K 0 L 7 S Speed Sensor Rear LH 8 S Speed Sensor Rear RH 3 0 7 3 I 5 I IL IL - R - R P- R G LG L -