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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 B0440, B0441, or B0442 >> DTC Descriptors

DTC Descriptors

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DTC B0440 00

Auxiliary Heater Glow Plug Circuit Low

DTC B0441 00

Auxiliary Heater Glow Plug Circuit High

DTC B0442 00

Auxiliary Heater Glow Plug Circuit Open

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