Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Power Door Lock Actuator: Testing and Inspection

Ensure battery is in good condition before performing the circuit tests.

To determine which latch is faulty, check each individual door for electrical lock and unlock or disconnect the latch connectors one at a time, while operating the door lock switch. In the event that none of the latches work, the problem maybe caused by a short or a bad switch. Disconnecting the defective latch will allow the others to work.

Front Door Lock Motor:




To test an individual door latch, disconnect the electrical connector from the latch, To lock the door, connect a 12 volt power source to the positive pin of the latch and a ground wire to the other pin. To unlock the door reverse the wire connections at the latch pin terminals. If these results are NOT obtained, replace the door latch assembly