Circuit/System Testing
WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the distance sensing cruise control (DSCC) module.
- Ignition OFF, test for less than 5.0 ohms between the ground circuit terminal 6 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Ignition ON, verify a test lamp illuminates between the ignition 1 voltage circuit terminal 1 and ground.
- If the test lamp did not illuminate, test the ignition 1 circuit for a short to ground or an open/high resistance.
- If the circuits test normal, test or replace the DSCC module.