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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P0685-P0687, P0689, P0690, P1682, P16A7, P16AF, or P16B3 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different variant/trim than selected.

P0685, P0686, P0687 

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

P0689, P16AF 

Engine Controls Ignition Relay Feedback Signal = Commanded state does not match the actual state - Greater than 6 s

P0690, P16B3 

Engine Controls Ignition Relay Feedback Signal = Commanded state does not match the actual state - Greater than 6 s

P1682, P16A7 

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

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