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Home >> Jeep >> 2022 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating & Air Conditioning (ATC) - DTCS B1059-87 To B10E8-12 >> DTC Troubleshooting >> B10C4-4B-Heated Steering Wheel Control-Over Temperature >> Possible Causes

Possible Causes

Possible Causes
HEATED STEERING WHEEL SIGNAL CIRCUIT HIGH RESISTANCE OR SHORTED
HEATED STEERING WHEEL EVIC MUX RETURN CIRCUIT HIGH RESISTANCE OR SHORTED
HEATED STEERING WHEEL SIGNAL CIRCUIT SHORTED TO THE HEATED STEERING WHEEL EVIC MUX RETURN CIRCUIT
HEATED STEERING WHEEL TEMPERATURE SENSOR
STEERING COLUMN CONTROL MODULE (SCCM)
COMFORT SEAT WHEEL SURFACE MODULE (CSWSM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .