Power Door Lock Actuator: Testing and Inspection

Door Lock Motor:

To determine which door solenoid is defective, check for proper lock/unlock operation at each door. If none of the solenoids operate, the problem may be due to a shorted door solenoid. Disconnecting the defective solenoid will allow the other(s) to operate.

To test an individual door solenoid, remove the door trim panel(s) to gain access to the door solenoid. Unplug the door solenoid connector and connect a test light between the OR wire and a known good ground. Move the switch to the lock position and check for available power. Connect the test light to the PK wire and move the lock knob to the unlock position again checking the available power. If voltage is present in both switch positions, the door solenoid is defective. If voltage is not present in one position or neither positions, the door switch or connecting wires may be defective.

NOTE: The power door lock system on this vehicle also includes an automatic door lock feature that is operated by the body computer. To activate this feature, the computer must read the following inputs:
^all four doors must be closed
^vehicle speed must be above 15 MPH
^transmission must not be in park or neutral
^the throttle position sensor must be open (10 degrees or more)

If any of these conditions are not met, the automatic door lock feature will not operate.