Conditions for Running the DTC

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

P0685 and P0689

The battery voltage is between 9-18 volts.
The ignition is ON.
The powertrain relay has been commanded ON.

P0690

The battery voltage is between 9-16 volts.
The ignition is OFF.
The powertrain relay has been commanded OFF.