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Home >> Chevrolet >> 2023 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (3 Of 5)) >> Diagnostic Information and Procedures >> DTC P10D9, P20B9, P20BA-P20BC, P214F, or P21DD >> DTC Descriptor

DTC Descriptor

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DTC P10D9

Reductant Heater Control Circuit Shorted

DTC P20B9

Reductant Heater Control Circuit

DTC P20BA

Reductant Heater Performance

DTC P20BB

Reductant Heater Control Circuit Low

DTC P20BC

Reductant Heater Control Circuit High

DTC P214F

Reductant Heater Current Too High

DTC P21DD

Reductant Heater Current Too Low

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