Component Testing
WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Heated and Cool Seat Switch
- Ignition OFF, disconnect the C4 harness connector at the door module.
- Test for infinite resistance between the following switch signal circuits and the low reference circuit terminal 4 with the switch in the open position.
- Terminal 7 heated seat back only mode switch signal
- Terminal 6 heated seat back cushion heat switch signal
- Terminal 3 heated seat cool switch signal
- If less than infinite resistance, replace the heated and cooled seat switch.
- Test for less than 2 ohms between the following switch signal circuits and the low reference circuit terminal 4 with the switch in the closed position.
- Terminal 7 heated seat back only mode switch signal
- Terminal 6 heated seat back cushion heat switch signal
- Terminal 3 heated seat cool switch signal
- If greater than 2 ohms for any of the tests, replace the heated and cooled seat switch.