Inspection and Verification
WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Visually inspect the following for obvious signs of electrical damage:VISUAL INSPECTION CHART
Electrical - Bulbs
- Central junction box (CJB) fuse(s)
- 21 (15A)
- 24 (15A)
- Circuitry
- Vehicle security module (VSM) (if equipped with RKE)
- Instrument cluster
- Door ajar switches
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, connect the scan tool to the data link connector (DLC).
- If the scan tool does not communicate with the VCM:
- Check the VCM connection to the vehicle.
- Check the scan tool connection to the VCM.
- Refer to MODULE COMMUNICATIONS NETWORK article, No Power To The Scan Tool, to diagnose no communication with the scan tool.
- If the scan tool does not communicate with the vehicle:
- Verify the ignition key is in the ON position.
- Verify the scan tool operation with a known good vehicle.
- Refer to MODULE COMMUNICATIONS NETWORK article to diagnose no response from the powertrain control module (PCM).
- Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK article.
- If the network test passes, retrieve and record the continuous memory DTCs.
- Clear the continuous DTCs and carry out the self-test diagnostics for the instrument cluster and the VSM.
- If the DTCs retrieved are related to the concern, go to the Instrument Cluster Diagnostic Trouble Code (DTC) Index and the Vehicle Security Module (VSM) Diagnostic Trouble Code (DTC) Index. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.
- If no DTCs related to the concern are retrieved, go to Symptom Chart .
NOTE:
Make sure to use the latest scan tool software release.
NOTE:
The vehicle communication module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Action |
|---|---|---|
| B2499 | Courtesy Lamp Output Failure | Go to Pinpoint Test A . |
| B2659 | Courtesy Switch Fault | Go to Pinpoint Test A . |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
NOTE:
Only vehicles equipped with RKE will have a VSM.
VEHICLE SECURITY MODULE (VSM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Action |
|---|---|---|
| B1322 | Driver Door Ajar Circuit Short to Ground | Go to Pinpoint Test C . |
| B1330 | Passenger Door Ajar Circuit Short to Ground | Go to Pinpoint Test C . |
| B1338 | Door Ajar RR Circuit Short to Ground | Go to Pinpoint Test C . |
| B1574 | Door Ajar LR Circuit Short to Ground | Go to Pinpoint Test C . |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |