Chart 2 Door Lock/Unlock Does Not Operate

Diagnostic Chart:

Electrical Diagram:

CIRCUIT DESCRIPTION
Lock function: Battery voltage is applied through the door lock relay and CKT 295 to the driver's door lock actuator. The driver's door lock motor is grounded through CKT 694 and the RCDLR//TDM. Unlock function: The RCDLR/TDM receiver applies voltage to the driver's door lock actuator through CKT 694. The driver's door lock actuator is grounded through CKT 295 and the door lock relay.

CHART TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.

1. Operating the door lock switches will isolate transmitter/receiver problem.
2. Check for unlock signal at the RCDLR/TDM.
3. Check for voltage on CKT 694. Voltage on CKT 694 would prevent the driver's door lock actuator from locking.
4. Check that the RCDLR/TDM applies voltage to CKT 694 when an unlock request is present.
5. Check that the RCDLR/TDM grounds CKT 694 to enable a lock request.

DIAGNOSTIC AIDS
Program a known good transmitter and test the driver's door lock and unlock functions. If the driver's door lock and unlock functions operate normally, the original transmitter was defective. If the driver's door lock and unlock functions are still inoperative replace the RCDLR/TDM. If a known good transmitter will not program, refer to Chart-8. Chart 8 Remote Receiver/Theft Deter Transmitter Won't Program