TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BAT/Brakes, ABS & TRAC Systems68 / 167
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Check ABS solenoid relay. — MK4 Supra Brakes, ABS & TRAC Systems, page 68
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BR–68 BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS) 3 Check ABS solenoid relay. 2 1 Continuity AB A9 Continuity Open 3 6 5 C Check continuity between each terminal of ABS solenoid relay shown below. OK Terminals A9 1 and A8 3 Continuity (Reference value 80 ) Terminals A9 5 and A9 6 Continuity Terminals A9 2 and A9 5 Open Continuity A8 2 A9 1 Open 3 6 5 C (1) Apply battery voltage between terminals (A9) 1 and (A8) 3. (2) Check continuity between each terminal of ABS solenoid relay shown below. OK Terminals A9 5 and A9 6 Open Terminals A9 2 and A9 5 Continuity ROC888 ROC886 OK NG Replace ABS control relay. 4 Check for open and short in harness and connector between ABS solenoid relay and ABS ECU (See page IN–30). OK NG Repair or replace harness or connector. If the same code is still output after the diagnostic trouble code is deleted, check the contact condition of each connection. If the connections are normal, the ECU may be defective.