Conditions for Running the DTC

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

The ignition voltage is greater than 10.8 volts.
The system relay is commanded ON.
For Criteria 2, one of the following conditions exists:
- The pump motor is OFF.
- During initialization, the pump motor is ON.