Driver Heated Seat Switch Open/Shorted to Ground

Test 1 - 3:

Test 4 - 7:

SYMPTOM
DRIVER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND

WHEN MONITORED
Ignition on.

SET CONDITION
If the switch is open or grounded the MHSMM Will have a loss of switch feed back and this code will set immediately. Once the condition is resolved the switch will return to it's normal operation. NOTE: This DTC can also be set when the ignition switch is cycled with the IOD fuse removed.

POSSIBLE CAUSES
- Fused ignition switch output st-run open
- Driver heated seat switch
- Driver seat heater switch MUX circuit open
- Driver seat heater switch MUX circuit shorted to ground
- Erase and read MHSMM DTC
- Memory heated seat mirror module