TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BAT/Brakes, ABS & TRAC Systems94 / 167
p.095
Check continuity between terminal GND of ABS (& TRAC) ECU connector and body ground. — MK4 Supra Brakes, ABS & TRAC Systems, page 94
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BR–94 BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS) Check continuity between terminal GND of ABS (& TRAC) ECU connector and body ground. w/o TRAC LOCK GND GND BE8853 R06983 w/ TRAC LOCK GND GND GND BE8853 R06928 C Measure resistance between terminals GND of ABS (& TRAC) ECU connector and body ground. OK Resistance: 1 or less OK NG Repair or replace harness or connector. Check ECU–IG fuse. J/B No.1 ECU-IG R07407 P Remove ECU–IG fuse from J/B No. 1. C Check continuity of ECU–IG fuse. OK Continuity OK NG Check for short in all the harness and components connected to ECU–IG fuse (See attached wiring diagram). Check for open in harness and connector between ABS (& TRAC) ECU and battery (See page IN–30).