TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.134
BAT/Brakes, ABS & TRAC Systems135 / 167
p.136
INSPECTION PROCEDURE — MK4 Supra Brakes, ABS & TRAC Systems, page 135
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BR–135 BRAKE SYSTEM – TRACTION CONTROL SYSTEM (TRAC) INSPECTION PROCEDURE 1 Check TRAC fuse. R/B No.2 TRAC R07408 P Remove TRAC fuse from R/B No.2. C Check continuity of TRAC fuse. OK Continuity OK NG Check for short in all harness and components connected to TRAC fuse. 2 Check voltage between terminals BM and GND of TRAC ECU. LOCK BM GND BE6653 R07198 P Remove TRAC ECU with connectors still connected. C Measure voltage between terminals BM and GND of TRAC ECU. OK Voltage: 10 – 14 V OK NG Check and repair harness or connector.