For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Door Lock/Indicator Schematics
1 | Did you review the Power Door Locks Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Doors
2 |

1. Turn ON the ignition with the engine OFF.
2. Operate the driver side and passenger side door lock switches.

Do the door locks operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3 | Does the inoperative door lock switch lock the door? | Go to Step 5 | Go to Step 4
4 | Does the inoperative door lock switch unlock the door? | Go to Step 6 | Go to Step 7
5 | Test for a high resistance or an open in the BLU/YEL wire between the inoperative door lock switch connector and the multifunction alarm module connector. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 8
6 | Test for a high resistance or an open in the BLU/WHT wire between the inoperative door lock switch connector and the multifunction alarm module connector. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 8
7 | Test for a high resistance or an open in the WHT/BLK wire between the inoperative door lock switch connector and ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 8
8 | Inspect for poor connections at the harness connector of the inoperative door lock switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 9
9 | Replace the inoperative door lock switch. Refer to Door Lock Switch Replacement . Is the repair complete? | Go to Step 10 | --
10 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3