TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.134

BAT/Brakes, ABS & TRAC Systems — Inspection Procedure, page 135

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p.136
Inspection Procedure — MK4 Supra Brakes, ABS & TRAC Systems, page 135
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Page text (OCR transcript)
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.