Toyota Corolla Cross: Egr Cooler

 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 hybrid vehicle control ECU to monitor whether or not the brake system is working properly. If the signals, which indicate the brake pedal is being depressed and r

 Check Bus 3 Line

DESCRIPTION Symptom Trouble Area There are ECUs or sensors that display a communication stop on the bus diagnostic screen. Or, there are ECUs or sensors that store a communication stop history on the "Detail" screen. CAN main