Conditions for Running the DTC
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
P0685, P0686, P0687
The DTC runs continuously when the ignition voltage is greater than 11 V.
P0689
- The engine controls ignition relay is commanded ON.
- The ignition voltage is greater than 11 V.
- DTC P0685 is not set.
- The DTC runs continuously when the above conditions are met.
P0690
- The engine controls ignition relay is commanded OFF.
- DTC P0685 is not set.
- The DTC runs continuously when the above conditions are met.
P1682
- The engine controls ignition relay is commanded ON.
- The ignition voltage is greater than 5.5 V.
- The DTC runs continuously when the above conditions are met.