Circuit/System Testing
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the telltale assembly information center.
- Ignition ON, transmission in reverse. Verify a test lamp illuminates when connected between the supply voltage circuit terminal A and ground.
- If the test lamp does not illuminate, test the supply voltage circuit for a short to ground or an open/high resistance.
- Ignition ON, transmission in reverse. Verify that a test lamp illuminates when connected between the supply voltage circuit terminal A and the following control circuit terminals while performing the scan tool LED test.
- Telltale assembly indicator control circuit terminal 4
- Telltale assembly indicator control circuit terminal 5
- Telltale assembly indicator control circuit terminal 6
- If the test lamp does not illuminate for one or more indicator control circuits, test the suspect indicator control circuit for a short to ground or an open/high resistance. If all the circuits test normal, replace the telltale assembly information center.
- If all circuits test normal, test or replace the object alarm module.