Electronically Controlled Brake System

DTC C1241/41 Low Battery Positive Voltage

DTC C1242/42 Open in IG1 / IG2 Power Source Circuit

DESCRIPTION
These codes are memorized when the power source voltage for the skid control ECU drops or the voltage for the ABS MAIN 1 relay and ABS MAIN2 relay operation drops.

DTC Detection Condition (part 1):

DTC Detection Condition (part 2):

HINT: DTC C1256/57 (accumulator low pressure) may be memorized if the power source voltage drops.

Wiring Diagram (part 1):

Wiring Diagram (part 2):

Wiring Diagram (part 3):

NOTICE: When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration. Electronically Controlled Brake System

INSPECTION PROCEDURE

Steps 1-2:

Steps 3-4:

Step 5: