How To Dianose Civic Power Door Locks

To check if the door latch mechanism is the problem disconnect the mechanical linkages that connect the power door lock actuator to the door latch mechanism and activate the door lock.

How to dianose civic power door locks.

Screw the actuator onto the bracket. 2004 honda odyssey ex passenger m. Step 4 attach adapter rod. An inoperative power door lock can be caused by the switch solenoid wiring problem or mechanical problem within the linkage of the affected door.

Door lock systems operate the actuator by toggling positive negative voltage to the actuator. To unlock the doors the switch reverses the polarity of the voltage applied to the solenoid. Diagnosis if all of the door locks are inoperative start your diagnosis at the fuse box. If the actuator now moves freely the door latch mechanism is sticky or binding.

You should see the voltage polarity toggle with each switch activation. Note the bracket screwed onto the door frame. Then use your test light or digital meter to check for power and ground at the connector when you operate the lock unlock switch. Unplug the door lock actuator electrical connector.

Helpful guide on diagnosing power door lock problems with the passenger multiplex control unit and the door lock actuators. Locate a good spot to mount the bracket. This must be parallel to the factory door lock rod. Replacement of the door latch mechanism is the only reliable long term solution.