Conditions for Setting the DTC

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.

P0690

• The ECM detects the engine controls ignition relay feedback circuit is greater than 2 V when the relay is commanded OFF.
• The ECM detects the engine controls ignition relay feedback circuit is greater than 18 V when the relay is commanded ON.
• The condition is present for greater than 2 s.

P1682 

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