TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.163

BAT/Brakes, ABS & TRAC Systems — Inspection Procedure, page 164

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p.165
Inspection Procedure — MK4 Supra Brakes, ABS & TRAC Systems, page 164
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Page text (OCR transcript)
BR–164
BRAKE SYSTEM – TRACTION CONTROL SYSTEM (TRAC)

INSPECTION PROCEDURE

1  Check voltage between terminals Tc and E1 of DLC2 or DLC1.

DLC2                    DLC1
                E1      Tc

Tc    E1

5-17-1
I61-23-1-A

P  Turn ignition switch ON

C  Measure voltage between terminals Tc and E1 of DLC2 or DLC1.

OK  Voltage: 10 — 14 V

NG                          OK  Proceed to next circuit inspection shown on problem symptoms chart (See page BR–133).

2  Check for open and short in harness and connector of symptoms connected to Tc terminal (See page IN–30).

OK                          NG  Repair or replace harness or connector.

Check and replace TRAC ECU.