DTC P046C GMC
Passengers Heater Thermistor Circuit Open
Passengers Heater Thermistor Circuit Open
Description
NOTE: The seat heater control unit does not turn on the seat heater until the seat core temperature is 85 degrees or less. Make sure the seat core temperature is below 85 degrees before troubleshooting.
Cause and Solution
Loose or poor connections between the seat heater control unit and the front passengers seat heater Open or high resistance in the wire between seat heater control unit and front passengers seat heater Faulty front passengers seat heater cushion heater Faulty seat heater control unit
Video Guide
Diagnostic Info
- DTC Code: P046C
- Brand: GMC