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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (4 Of 5)) >> Diagnostic Information and Procedures >> DTC P20EE, P249D, or P249E >> DTC Descriptor

DTC Descriptor

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DTC P20EE

Nitrogen Oxides Catalytic Converter Efficiency Below Threshold

DTC P249D

Closed Loop Reductant Injection Control At Limit - Flow Too Low

DTC P249E

Closed Loop Reductant Injection Control At Limit - Flow Too High

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