For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Door Lock/Indicator Schematics
1 | Did you perform the Diagnostic System Check for the door systems? | Go to Step 2 | Go to Diagnostic System Check - Door Systems
2 |

1. Connect a scan tool.
2. Turn the ignition ON, with the engine Off.
3. Read the current personalization setting for the automatic door lock mode.

Is the personalization setting correct?

Go to Step 3

Go to Vehicle Personalization in Personalization

3 | Verify that the fault is present. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 4
4 | Verify that the power door locks operate correctly. Do the power door locks operate correctly? | Go to Step 5 | Go to Symptoms - Doors
5 | Close all the doors. Do the courtesy lamps go out? | Go to Step 8 | Go to Step 6
6 | Test the door jamb switch signal circuits to the BCM for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 7
7 | Replace the defective door jamb switch. Refer to Door Jamb Switch Replacement . Did you complete the repair? | Go to Step 9 | --
8 |

1. Replace the body control module. Refer to Body Control Module Replacement in Body Control System.
2. Perform the set-up procedure for the body control module. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.

Did you complete the repair?

Go to Step 9

--

9 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2