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Home >> Jeep >> 2022 >> Renegade Sport, FWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating & Air Conditioning - DTCS B1906-11 To B1919-1C >> DTC Troubleshooting >> B1919-14-Blower Module - Circuit Short To Ground Or Open >> Possible Causes

Possible Causes

Possible Causes
BLOWER MOTOR SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
BLOWER MOTOR SUPPLY CIRCUIT SHORTED TO GROUND
FRONT BLOWER PWM CONTROL CIRCUIT SHORTED TO GROUND
FRONT BLOWER PWM CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
GROUND CIRCUIT OPEN OR HIGH RESISTANCE
BLOWER MOTOR RELAY
FRONT BLOWER MOTOR POWER MODULE
HVAC MODULE

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