Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
P0685, P0686, P0687, P16A7
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 5 s
P0690, P16B3
Engine Controls Ignition Relay Feedback Signal = Commanded state does not match the actual state - Greater than 5 s
P1682
The following parameters are not within 3 V of each other:
- Ignition 1 Signal
- Engine Controls Ignition Relay Feedback Signal
- Engine Controls Ignition Relay Feedback 2 Signal