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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 >> B1F1D-14-Rear Right Vent Control 1-Circuit Short To Ground Or Open >> Possible Causes

Possible Causes

Possible Causes
LIN BUS COMMUNICATION FAILURE
VENTED SEAT MOTOR FUSE
REAR RIGHT VENT CONTROL CIRCUIT SHORTED TO GROUND
REAR RIGHT VENT CONTROL CIRCUIT SHORTED TO ANOTHER CIRCUIT
REAR RIGHT VENT CONTROL CIRCUIT FAULTY WIRING
REAR VENT MOTOR FAULTY
COMFORT REAR SEAT MODULE (CRSM)

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