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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> (HVAC Systems (ATC) - Electrical Diagnostics) >> DTC Troubleshooting >> B100A-RECIRCULATION Switch Request Input Circuit Low >> Possible Causes

Possible Causes

Possible Causes 
OBJECT HOLDING RECIRCULATION MODE SWITCH IN A PUSHED POSITION
SUBSTANCE CAUSING RECIRCULATION MODE SWITCH TO GET STUCK IN A PUSHED POSITION
A/C HEATER CONTROL