Wireless Door Lock Control System

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

This system uses the multiplex communication system, so check diagnosis system of the multiplex communication system before you proceed with troubleshooting.

NOTE:

Troubleshooting of the wireless door lock control system is based on the premise that the door lock control system is operating normally. Accordingly, before troubleshooting the wireless door lock control system, first make certain that the door lock control system is operating normally.
If the trouble still reappears even though there are no abnormalities in any of the other circuits, then check and replace the Wireless Door Lock Control Receiver as the last step.

WIRELESS DOOR LOCK CONTROL SYSTEM

Symptom/Suspect Area

See

All Functions Of Wireless Door Lock Control System Do Not Operate

Transmitter

⁽¹⁾

Wireless Door Lock Control Receiver

⁽²⁾

Wire Harness

.....

Body ECU

⁽³⁾

Wireless Door Lock Operates, Buzzer Does Not Sound (Buzzer Does Not Sound When Prohibited by Customize Function)

Wireless Door Lock Buzzer

⁽⁴⁾

Wireless Door Lock Control Receiver

⁽²⁾

Wire Harness

.....

⁽¹⁾	INSPECT WIRELESS DOOR LOCK TRANSMITTER OPERATION

⁽²⁾	INSPECT WIRELESS DOOR LOCK CONTROL RECEIVER CIRCUIT

⁽³⁾	BODY, CAB CONTROL SYSTEMS -Body ECU

⁽⁴⁾	INSPECT WIRELESS DOOR LOCK BUZZER OPERATION