TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.144

BAT/Brakes, ABS & TRAC Systems — Dtc 43 ABS & TRAC ECU Malfunction, page 145

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p.146
Dtc 43 ABS & TRAC ECU Malfunction — MK4 Supra Brakes, ABS & TRAC Systems, page 145
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Page text (OCR transcript)
BR–145
BRAKE SYSTEM – TRACTION CONTROL SYSTEM (TRAC)

DTC 43 ABS & TRAC ECU Malfunction

CIRCUIT DESCRIPTION

DTC No. | Diagnostic Trouble Code Detecting Condition | Trouble area

43 | ABS control system or TRAC (BRAKE) control system or communication circuit is abnormal. | ABS & TRAC ECU
Open or short in BRFA circuit

WIRING DIAGRAM

ABS & TRAC ECU
12 V
BRFA 5
A21
P-B

TRAC ECU
4 BRFA
T9

R07629

INSPECTION PROCEDURE

1 Is diagnostic trouble code output for the ABS & TRAC (BRAKE)?

Perform diagnostic trouble code check on page BR–128.

NO

YES Repair circuit indicated by the code output.