Symptom Diagnostic Procedures

ONLY WIRELESS CONTROL FUNCTION IS INOPERATIVE (PREPARE NEW OR NORMAL TRANSMITTER OF THE SAME TYPE VEHICLE)

CIRCUIT DESCRIPTION
Door control receiver receives a signal from the transmitter and sends the signal to the instrument panel (body ECU). The instrument panel (body ECU) sends a door LOCK/UNLOCK signal to each door lock actuator to control it. Then finally proceed with the troubleshooting. Also, in case that the wire harness between the instrument panel J/B (body ECU) and door control receiver has been short-circuited, diagnostic code 42 will be output and wireless control will not function.

Wiring Diagram:

Step 1-5:

Step 6:

Step 7-8:

Step 9-12:

Step 13-14:

Step 15-16:

Step 17-19:

INSPECTION PROCEDURE

HINT: A switch described in this text indicates the switch for sending, which is built-in the door control transmitter.