Toyota Corolla Cross: Cellular Communication

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom

 Brake System Control Module "A" System Voltage System Voltage High (C137BA3)

DESCRIPTION If a malfunction is detected in the power supply circuit, the skid control ECU (brake actuator assembly) stores this DTC and the fail-safe function prohibits ABS, brake assist, regenerative braking, etc. operation. This DTC is stored when the +BS terminal voltage deviates due to