Circuit/System Verification
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, observe the appropriate scan tool Rear Heated Seat Module Rear Seat HVC Mode parameter while pressing the heated seat back/cushion mode switch. The reading should change between Off and Back and Cushion.
- If not Back and Cushion, refer to Circuit/System Testing .
- Observe the appropriate scan tool Rear Seat HVC Mode parameter while pressing the heated seat back only mode switch. The reading should change between Back and Cushion and Back Only.
- If not Back Only, refer to Circuit/System Testing .
- If all scan tool parameters test normal and there are no DTCs set, replace the RHSM.