chevrolet avalanche 1500 Seat Heater Wiring Schematics

Seat Heat Not Working


Disconnect the heated seat module and check resistance through the heating elements pins A and F for the cushion and then C and D for the back. Each element should have resistance of 5 ohms or less. If a open circuit, replace the heating element. If resistance is OK, then check the resistance of the thermistor again on Grey connector pins B and E. Should be 500 and 10K ohms.

chevrolet seat heater parts diagram


Also  check the fuse first there should be a 50 AMP under the hood.
Need to check the SEO2 this is underhood 30 amp and IGN 3 10 amp fuse this is inside the cab.



you should check the pads on passenger seat
The wiring diagram for seat heater is as follows:

Chevy Seat Heater Wiring

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