Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE - DOOR LOCK SWITCH SHORT TO GROUND
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 | Turn the ignition on. With the DRBIII®, erase DTCs. Operate the door locks several times. With the DRBIII®, read DTCs. Does the DRBIII® display DOOR LOCK SWITCH SHORT TO GROUND? Yes --> Go To 2 No --> Problem is intermittent and not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors and repair as necessary. Perform BODY VERIFICATION TEST - VER 1 . |
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| 2 | Disconnect the Junction Block C2 connector. Measure the resistance between ground and the Door Lock Switch Mux circuit cavity 14 in the C2 connector. Is the resistance below 100 ohms? Yes --> Go To 3 No --> Go To 4 |
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| 3 | Disconnect the Junction Block C2 connector. Disconnect the Left Door Lock Switch connector. Measure the resistance between ground and the Door Lock Switch Mux circuit cavity 14 in the C2 connector. Is the resistance below 100 ohms? Yes --> Repair the Door Lock Switch Mux wire for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace the Left Door Lock Switch. Perform BODY VERIFICATION TEST - VER 1 . |
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| 4 | Disconnect the Junction Block C2 connector. Measure the resistance between ground and the Door Lock Switch Mux circuit cavity 10 in the C2 connector. Is the resistance below 100 ohms? Yes --> Go To 5 No --> Go To 6 |
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| 5 | Disconnect the Junction Block C2 connector. Disconnect the Right Door Lock Switch connector. Measure the resistance between ground and the Door Lock Switch Mux circuit cavity 10 in the C2 connector. Is the resistance below 100 ohms? Yes --> Repair the Door Lock Switch Mux wire for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace the Right Door Lock Switch. Perform BODY VERIFICATION TEST - VER 1 . |
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| 6 | Disconnect the Junction Block C2 connector. Remove the Body Control Module from the Junction Block. Measure the resistance between ground and the Door Lock Switch Mux circuit cavity 23 in the Junction Block - Body Control Module connector. Is the resistance below 100 ohms? Yes --> Replace the Junction Block. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace the Body Control Module. Perform BODY VERIFICATION TEST - VER 1 . |
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