TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BAT/Brakes, ABS & TRAC Systems69 / 167
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INSPECTION PROCEDURE (w/ TRAC) — MK4 Supra Brakes, ABS & TRAC Systems, page 69
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BR–69 BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS) INSPECTION PROCEDURE (w/ TRAC) 1 Check voltage between terminals 1 and 2 of R/B No. 5 (for ABS solenoid relay). LOCK R/B No.5 BE6053 RO7047 P Remove ABS solenoid relay from R/B No. 5. C Measure voltage between terminals 1 and 2 of R/B No. 5 (for ABS solenoid relay). OK Voltage: 10 — 14 V OK NG Check and repair harness or connector. 2 Check continuity between terminal 3 of R/B No.5 (for ABS solenoid relay) and terminal (A20) 21 of ABS & TRAC ECU. ABS Solenoid Relay 3 A6 A6 4 ABS Actuator 2 A7 A7 2 ECU A20 21 R11334 C Check continuity between terminal 3 of R/B No.5 (for ABS solenoid relay) and terminal (A20) 21 OF ABS & TRAC ECU. OK Continuity HINT: There is a resistance of 4 ~ 6 between terminals (A6) 4 and (A7) 2 of ABS actuator. OK NG Repair or replace harness or ABS connector.