My car does not have an electric lock/unlock switch on the door panel. Is that what's considered the "control switch?" I have a manual open/close switch on the doors. If I don't have a "control switch" maybe my problem is with the circuit breaker or my car alarm control unit (not sure what is called)

Response from tommiller1
1 question asked

The attached diagram is the schematic of the power lock system and symptom indicates the relay inside the control module for unlocking is bad. You can remove the control unit and replace the relay but it would required some soldering work, unless you are going to replace the control unit.

Answered by KHLow2008 (expert)
39,900 answers provided

Yes, the door switch at door panel is the lock and unlock switch as described. To test if the switch is working, use a test light to probe the Green/Red wire and ground other end. Press the switch to unlock position and if test light lights up, it means the switch is good and my previous answer is correct.

If test light does not light up, apply battery voltage to the Green/Red wire (You can bridge the Blue/Red and Gree/Red) and if doors unlocks, the switch is bad.

Answered by KHLow2008 (expert)
39,900 answers provided

Thanks for the schemetic and the great advice. I appreciate it. Last question: Where do you expect that I would find the "control module" on my car? And could you send along a picture of one, so I can recognize it.
take care

Response from tommiller1
1 question asked

There is one part that I misread, the one about the door switch. If you do not have on on the door panel, it means it is inside the door panel or attached to actuator. You use the door knob to lock and unlock from inside vehicle.

The control module is called the door lock timer and is behind left side of dash.

Answered by KHLow2008 (expert)
39,900 answers provided

Ok, I recognize that part. Thanks again

Response from tommiller1
1 question asked