Toyota Corolla Cross: Vehicle Exterior

 Backup Boost Converter "A" (P323A00,P323A16,P323B14,P323B29,P323B38)

DESCRIPTION A backup boost converter is built into the engine stop and start ECU. The backup boost converter helps maintain auxiliary battery voltage to prevent various functions from failing if power source voltage supplied from the backup boost converter drops due to the high electrical load whe

 Brake Switch "A"/"B" Signal Cross Coupled (P05042B)

DESCRIPTION The stop light switch assembly is a duplex system that transmits two signals: STP and ST1-. These two signals are used by the ECM to monitor whether or not the brake system is working properly. If the signals, which indicate the brake pedal is being depressed and released, are detected s