Diagnostic Procedure
DIAGNOSTIC PROCEDURE - ALARM TRIPS ON ITS OWN
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
When this code is present, the VTSS indicator will illuminate solid during the arming process. With the DRBIII®, record and erase DTC's.Cycle the ignition switch from ON to OFF.With the DRBIII®, read DTC's.Operate the Decklid Cylinder Lock Switch several times while monitoring the DRBIII®.Does the DRBIII® display DECKLID SWITCH DISARM FAILURE?Yes --> Go To 2No --> The condition that caused this symptom is currently not present.Using the wiring diagram/schematic as a guide, inspect the related wiring harness and connectors for a possible intermittent condition. |
All |
| 2 | Disconnect the Decklid Cylinder Lock Switch connector. Using a 12-volt test light connected to 12-volts, test the Ground circuit for continuity. Does the test light illuminate brightly? Yes --> Go To 3 No --> Repair the Ground circuit for an open. Perform VTSS VERIFICATION TEST - 1A . |
All |
| 3 | Disconnect the Decklid Cylinder Lock Switch connector. Connect a jumper wire between the Decklid Security Switch Sense circuit and the ground wire. With the DRBIII® in Inputs/Outputs, read the DECKLID KEY CYL SW state. Does the DRBIII® display CLOSED? Yes --> Replace the Decklid Cylinder Lock Switch. Perform VTSS VERIFICATION TEST - 1A . No --> Go To 4 |
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| 4 | Disconnect the Body Control Module C4 harness connector. Disconnect the Decklid Cylinder Lock Switch harness connector. Measure the resistance of the Sense circuit. Is the resistance below 5.0 ohms? Yes --> Replace the Body Control Module. Perform VTSS VERIFICATION TEST - 1A . No --> Repair the Decklid Security Switch Sense circuit for an open. Perform VTSS VERIFICATION TEST - 1A . |
All |