For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open.
1 | Important: This table tests the power door lock function of the RKE transmitter. All of the doors must be closed to ensure correct operation of the door lock system. Failure to do so can cause mis-diagnosis. Attempt to lock and unlock the power door locks using the door mounted switch.

Do the power door locks operate correctly?

--

Go to Step 2

Go to Power Door Locks System Check

2 | Press the LOCK button on the keyless entry transmitter. Do the doors lock? | -- | Go to Remote Keyless Entry System Check | Go to Step 3
3 | Test the system with a known good transmitter. Do the doors lock? | -- | Go to Step 5 | Go to Step 4
4 | Replace the RKE module. Refer to Receiver Replacement . Is the repair complete? | -- | Go to Remote Keyless Entry System Check | --
5 | Replace the transmitter. Is the repair complete? | -- | Go to Remote Keyless Entry System Check | --