Toyota Corolla Cross: Front Airbag Sensor

 Ultrasonic Sensor (Rear Left Corner) Missing Message (C1AE687)

DESCRIPTION This DTC is output when an open circuit or short occurs in the communication line between a rear corner ultrasonic sensor (RL sensor) and the clearance warning ECU assembly, or when a malfunction occurs in a rear corner ultrasonic sensor (RL sensor) on the rear. DTC No

 ECM Power Source Circuit

DESCRIPTION When the ignition switch is turned to ON, the auxiliary battery voltage is applied to the IGSW terminal of the ECM. The output signal from the MREL terminal of the ECM causes current to flow to the coil of the EFI-MAIN NO. 1 relay, closing the contacts of the EFI-MAIN NO. 1 relay and sup