Diagnostic Aids

WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Use the J 35616 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
Inspect for a condition in which the throttle valve may have been held open. For example, ice may have formed in the throttle bore.
The throttle valve is spring loaded to a slightly open position. The throttle valve should be open approximately 2-5 percent. This is referred to as the rest position. The throttle valve should not be completely closed, nor should the throttle valve be open any more than the specified amount. The throttle valve should move open and to the closed position without binding under normal spring pressure. The throttle should NOT be free to move open or closed WITHOUT spring pressure. Replace the throttle body if any of these conditions are found.
If the conditions for running the DTC are out of range, this DTC will not be able to be cleared until the ECM learns the throttle position.
For an intermittent condition, refer to Intermittent Conditions .