Troubleshooting Hints

TROUBLESHOOTING HINTS

Try the following checks before doing the System Check.

1. Check the key pellet sensing contacts in the Ignition Lock Cylinder by looking into the key opening. If the contacts are damaged, replace the Lock Cylinder.
2. Check the VATS Fuse by visual inspection.
3. Check all of the owner's ignition keys using the J35628 Interrogator or equivalent. If the Key Code window shows 'E," or reading is erratic, replace the owner's key.
4. Check the Security Indicator bulb.
5. Check the ECM Fuse and the GAGES Fuse by visual inspection.

Note: When the PASS Key Decoder Module is replaced, the new module will store the key resistance value the first time the car is started. The Security Indicator will remain on for this first ignition cycle, and not turn off until the Ignition Switch is turned to OFF.

Go to System Check for a guide to normal operation. System Check

Go to System Diagnosis for diagnostic tests. System Diagnosis