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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (HVAC - Manual) >> Diagnostic Information and Procedures >> DTC B0449, B0450, B0451, or B0452 >> DTC Descriptors

DTC Descriptors

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DTC B0449 00

Auxiliary Heater Blower Fan Circuit Range/Performance

DTC B0450 00

Auxiliary Heater Blower Fan Circuit Low

DTC B0451 00

Auxiliary Heater Blower Fan Circuit High

DTC B0452 00

Auxiliary Heater Blower Fan Circuit Open

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