Circuit/System Testing
WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connectors at the AFS module.
- Ignition OFF, test for less than 3.0 ohms between the ground circuit terminals listed below and ground.
- Terminal 1 X2
- Terminal 3 X3
- If greater than the specified value, test the affected ground circuit for an open/high resistance.
- Ignition ON, verify a test lamp illuminates between the B+ circuits listed below and ground.
- Terminal 2 X2
- Terminal 1 X3
- If the test lamp did not illuminate, test the affected B+ circuit for a short to ground or an open/high resistance.
- If all circuits test normal, replace the AFS module.