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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 54 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P1051, P20B9, P20BA-P20BC, P248A, or P248B >> DTC Descriptor

DTC Descriptor

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
DTC P1051

Reductant Heater 1 Driver High Temperature

DTC P20B9

Reductant Heater 1 Control Circuit

DTC P20BA

Reductant Heater 1 Performance

DTC P20BB

Reductant Heater 1 Control Circuit Low Voltage

DTC P20BC

Reductant Heater 1 Control Circuit High Voltage

DTC P248A

Reductant Heater 1 Feedback Circuit Low Voltage

DTC P248B

Reductant Heater 1 Feedback Circuit High Voltage

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