Conditions for Running the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
P0685
- The ignition is ON.
- Ignition 1 signal voltage is between 11-32 V.
- The DTC runs continuously when the above conditions are met.
P0690
- The powertrain relay is commanded on.
- P0685 is not set.
- The DTC runs continuously when the above conditions are met.
P1682
- The powertrain relay is commanded on.
- The ignition voltage is greater than 5.5 V.
- The DTC runs continuously when the above conditions are met.