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.
Rear Heated Seat Switch
- Ignition OFF, disconnect the harness connector at the heated seat switch switch.
- Test for infinite resistance between the signal terminal G and the ground terminal J with the switch in the open position.
- If less than infinite, replace the heated seat switch switch.
- Test for infinite resistance between the signal terminal A and the ground terminal J with the switch in the open position.
- If less than infinite, replace the heated seat switch switch.
- Test for less than 5 ohms between the signal terminal G and the ground terminal J with the switch in the closed position.
- If greater than 5 ohms, replace the heated seat switch.
- Test for less than 5 ohms between the signal terminal A and the ground terminal J with the switch in the closed position.
- If greater than 5 ohms, replace the heated seat switch.
- Connect a 3A fused jumper wire between the heated seat switch supply voltage terminal K and battery voltage.
- Connect a test lamp between the following indicator control circuits and ground. The selected indicator should illuminate.
- Terminal B seat back only mode indicator
- Terminal C low heat indicator
- Terminal D medium heat indicator
- Terminal E high heat indicator
- Terminal H seat back cushion mode indicator
- If any of the indicators do not illuminate, replace the rear heated seat switch.