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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 B11CB-15 To B1E9B-92 >> DTC Troubleshooting >> B11CB-87-Front Left Temperature Door 1 Control-Missing Message >> Possible Causes

Possible Causes

Possible Causes
FRONT/LEFT TEMPERATURE DOOR 1 ACTUATOR WIRING
FRONT/LEFT TEMPERATURE DOOR 1 ACTUATOR
HVAC CONTROL
HVAC MODULE

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

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