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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System - Automatic >> Diagnostic Information and Procedures >> DTC B0223, B022A, B0233, B023A, B0408, or B0418: Recirculate Position/Air Flow Control/HVAC Actuators/Temperature Control >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Stepper Motors 12V Reference B022A 06, B023A 02, B0223 06, B0233 06, B0408 06, B0418 06 B022A 06, B0223 06, B0233 06, B0408 06, B0418 06 - -
Air Inlet Actuator Control 1 B022A 06 B022A 06 B022A 01 1
Air Inlet Actuator Control 2 B022A 06 B022A 06 B022A 01 1
Air Inlet Actuator Control 3 B022A 06 B022A 06 B022A 01 1
Air Inlet Actuator Control 4 B022A 06 B022A 06 B022A 01 1
Recirculation Actuator Control 1 B0223 06 B0223 06 B0223 01 1
Recirculation Actuator Control 2 B0223 06 B0223 06 B0223 01 1
Recirculation Actuator Control 3 B0223 06 B0223 06 B0223 01 1
Recirculation Actuator Control 4 B0223 06 B0223 06 B0223 01 1
Air Temperature Actuator Control 1 B0408 06 B0408 06 B0408 01 1
Air Temperature Actuator Control 2 B0408 06 B0408 06 B0408 01 1
Air Temperature Actuator Control 3 B0408 06 B0408 06 B0408 01 1
Air Temperature Actuator Control 4 B0408 06 B0408 06 B0408 01 1
Passenger Air Temperature Actuator Control 1 B0418 06 B0418 06 B0418 01 1
Passenger Air Temperature Actuator Control 2 B0418 06 B0418 06 B0418 01 1
Passenger Air Temperature Actuator Control 3 B0418 06 B0418 06 B0418 01 1
Passenger Air Temperature Actuator Control 4 B0418 06 B0418 06 B0418 01 1
Mode Actuator Control 1 B0233 06 B0233 06 B0233 01 1
Mode Actuator Control 2 B0233 06 B0233 06 B0233 01 1
Mode Actuator Control 3 B0233 06 B0233 06 B0233 01 1
Mode Actuator Control 4 B0233 06 B0233 06 B0233 01 1
1. HVAC Malfunction