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Possible Causes

Possible Causes
INTERMITTENT SHORT IN ANY OF THE ACTUATOR WIRING
SHORT TO VOLTAGE OR GROUND IN ANY OF THE ACTUATOR WIRING
FRONT LEFT TEMPERATURE DOOR ACTUATOR SHORTED INTERNALLY
HVAC MODULE

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

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