Component Testing
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Heated Seat Switch
- Ignition OFF, disconnect the harness connector at the heated seat switch switch.
- Test for infinite resistance between the signal terminal 4 and the ground terminal 7 with the back and cushion switch in the open position.
- If not the specified value, replace the heated seat switch switch.
- Test for infinite resistance between the signal terminal 5 and the ground terminal 7 with the back only switch in the open position.
- If not the specified value, replace the heated seat switch switch.
- Test for less than 5 Ω between the signal terminal 4 and the ground terminal 7 with the back and cushion switch in the closed position.
- If greater than the specified value, replace the heated seat switch.
- Test for less than 5 Ω between the signal terminal 5 and the ground terminal 7 with the back only switch in the closed position.
- If greater than the specified value, replace the heated seat switch.
- Install a 3 A fused jumper wire between the control terminal 2 and B+.
- Connect a test lamp between the control circuits listed below and ground. The selected indicator should illuminate.
- Back and cushion heat indicator terminal 1
- Low heat indicator terminal 6
- Medium heat indicator terminal 8
- Back only heat indicator terminal 9
- High heat indicator terminal 10
- If any indicator does not illuminate, replace the heated seat switch.