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Home >> Fiat >> 2016 >> 500 Turbo, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 ((Heating & Air Conditioning - Electrical Diagnostics - 500 - Electric)) >> DTC Troubleshooting >> B1902-77-Front Mode Door 1 Control - Commanded Position Not Reachable >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
RELATED DTCS PRESENT
MODE DOOR BINDING
MODE DOOR ACTUATOR
A/C HEATER CONTROL

Always perform the HVAC Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  HVAC PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE   . 

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