Toyota Corolla Cross: Steering Wheel

 Microphone Circuit

WIRING DIAGRAM w/ Telematics Transceiver w/o Telematics Transceiver CAUTION / NOTICE / HINT NOTICE: When replacing the telematics transceiver, make sure to replace it with a new one. Depending on the parts that are replaced during vehicle inspection or maintenance, performing i

 Power Source Mode does not Change to ON (IG and ACC)

DESCRIPTION When the ignition switch cannot be turned to ACC or ON, interior verification may be abnormal or there may be a malfunction in the ACC relay or IG relay circuit. If interior verification cannot be performed, the certification ECU (smart key ECU assembly) may be malfunctioning or communic