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Home >> Chevrolet >> 2018 >> Impala Premier, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls And Fuel - 2.5L (LCV) - Diagnostic Information And Procedures (P0340-P2635) And Symptoms) >> Diagnostic Information and Procedures >> DTC P0685-P0687, P0689, P0690, or P1682 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P0685 

The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for greater than 2 s.

P0686 

The ECM detects a short to ground on the control circuit for greater than 2 s.

P0687 

The ECM detects a short to voltage on the control circuit for greater than 2 s.

P0689 

The ECM detects the engine controls ignition relay feedback circuit is less than 5 V.

P0690 

The ECM detects the engine controls ignition relay feedback circuit is greater than 4 V for greater than 5 s.

P1682 

The ECM detects that the voltage level difference is greater than 3 V between the 2 ignition voltage circuits for greater than 1 s.

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