TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.074
BAT/Brakes, ABS & TRAC Systems75 / 167
p.076
INSPECTION PROCEDURE (w/ TRAC) — MK4 Supra Brakes, ABS & TRAC Systems, page 75
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BR–75 BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS) INSPECTION PROCEDURE (w/ TRAC) 1 Check voltage between terminal 1 of R/B No. 5 (for ABS motor relay) and body ground. LOCK R/B No.5 P Remove ABS motor relay from R/B No. 5. C Measure voltage between terminal 1 of R/B No. 5 (for ABS motor relay) and body ground. OK Voltage: 10 — 14 V BE9853 RO7048 OK NG Check and repair harness or connector. 2 Check continuity between terminal 2 of R/B No.5 (for ABS motor relay) and terminal (A20) 9 of ABS & TRAC ECU. ABS Motor Relay 2 A6 ABS Actuator A6 M 5 3 3 5 A7 A7 A20 9 ECU R11335 C Check continuity between terminal 2 of R/B No.5 (for ABS motor relay) and terminal (A20) 9 of ABS & TRAC ECU. OK Continuity HINT: There is a resistance of 4 ~ 6 between terminals (A6) 3 and (A7) 5 of ABS actuator. OK NG Repair or replace harness or ABS actuator.