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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 P0685-P0687, P0689, P0690, P1682, P16BC, P16BD, or P16BF >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P0685, P0686, P0687 

Control Circuit = Commanded state does not match the actual state - Greater than 2 s

P0689, P16BD 

Engine Controls Ignition Supply Voltage Feedback Signal = Less than 5 V - For greater than 6 s

P0690, P16BF 

Engine Controls Ignition Supply Voltage Feedback Signal = Greater than 4 V - Greater than 50 s

P1682, P16BC 

The following parameters are not within 3 V of each other:

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