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 RELAY CONTROL CIRCUIT OPEN OR SHORT TO GROUND
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
If the door locks are totally inoperative, check fuse #6 before proceeding. 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 RELAY CONTROL CIRCUIT OPEN/SHORT TO GROUND?Yes --> Go To 2No --> 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. Ensure the relay is completely plugged in.Perform BODY VERIFICATION TEST - VER 1 . |
All |
| 2 | Remove the Door Lock Relay from the Junction Block. Install a substitute relay in place of the Door Lock Relay. With the DRBIII®, erase DTCs. Operate the Door Locks several times. With the DRBIII®, read DTCs. Does the DRBIII® display DOOR LOCK RELAY CONTROL CIRCUIT OPEN/SHORT TO GROUND? Yes --> Go To 3 No --> Replace the original relay. Perform BODY VERIFICATION TEST - VER 1 . |
All |
| 3 | Turn the ignition off. Remove the Door Lock Relay from the Junction Block. Remove the Body Control Module from the Junction Block.
NOTE:
Ensure the Junction Block connectors are reconnected at this time. Measure the resistance between ground and the Door Lock Relay Control circuit in the relay connector of the Junction Block. Is the resistance below 100.0 ohms? Yes --> Replace the Junction Block. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 4 |
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| 4 | Turn the ignition off. Remove the Door Lock Relay from the Junction Block. Remove the Body Control Module from the Junction Block. Measure the resistance of the Door Lock Relay Control circuit between the Relay connector and the Junction Block - BCM connector. Is the resistance below 2.0 ohms? Yes --> Go To 5 No --> Replace the Junction Block. Perform BODY VERIFICATION TEST - VER 1 . |
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| 5 | If there are no possible causes remaining, view repair. Repair Replace the Body Control Module. Perform BODY VERIFICATION TEST - VER 1 . |
All |