For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you review the Keyless Entry System Description , Keyless Entry System Operation and Keyless Entry System Circuit Description and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Doors
2 | Verify that the left front door lock switch is inoperative and that the remote keyless entry operates normally. Does the remote keyless entry operate normally and is the left front door lock switch inoperative? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
3 | Connect a test lamp between terminal 5 of the door lock switch and ground. Does the test lamp illuminate? | Go to Step 5 | Go to Step 4
4 | Repair the open in the RED/WHT wire between the door lock switch and S501. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 10 | --
5 | Connect a test lamp between terminal 1 of the door lock switch and ground. Does the test lamp illuminate with the door lock switch in the LOCK position? | Go to Step 7 | Go to Step 6
6 | Repair the open in the PNK wire between the door lock switch and S500. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 10 | --
7 | Connect a test lamp between terminal 4 of the door lock switch and ground. Does the test lamp illuminate with the door lock switch in the UNLOCK position? | Go to Step 9 | Go to Step 8
8 | Repair the open in the PNK /GRN wire between the door lock switch and S228. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 10 | --
9 | Replace the door lock switch. Refer to Door Lock and Side Window 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