ABS (Antilock Brake System)

DTC 42 IG2 POWER SOURCE CIRCUIT

CIRCUIT DESCRIPTION

DTC Condition:

These codes are memorized when the power source voltage for the skid control ECU drops or the voltage for the ABS No.1, ABS No.2 relay operation drops. Codes may be memorized when the voltage of the auxiliary battery temporarily drops.

When the power source voltage is too high, the skid control ECU stops functioning and outputs no DTCs, and the ABS and BRAKE warning light remain on.

HINT: DTC C1256/56 (accumulator low voltage malfunction) may be memorized if the power source voltage drops.

Wiring Diagram:

Step 1 - 3:

Step 4:

Step 5 - 6:

INSPECTION PROCEDURE