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Home >> Fiat >> 2021 >> 500X Trekking >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating & Air Conditioning - DTCS B1030-11 To B1912-11 >> DTC Troubleshooting >> B1909-77-RECIRCULATION Motor Command - Commanded Position Not Reachable >> Possible Causes

Possible Causes

Possible Causes
OPEN OR HIGH RESISTANCE ON ONE OF THE ACTUATOR CIRCUIT S
RECIRCULATION DOOR BINDING
RECIRCULATION DOOR STOP
RECIRCULATION DOOR ACTUATOR
HVAC MODULE

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

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