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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating & Air Conditioning (ATC) - DTCS B1E9C-11 To U1480-00 >> Diagnosis And Testing >> B1F12-19-Rear Left Heater Control 2-OVERCURRENT >> Possible Causes

Possible Causes

Possible Causes
REAR LEFT SEAT CUSHION HEATER FEED CIRCUIT SHORTED TO ANOTHER CIRCUIT
REAR LEFT SEAT CUSHION HEATER ELEMENT
COMFORT REAR SEAT MODULE (CRSM)

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