Test Description
WARNING: This page is about a different car, the 2003 Pontiac Grand Am, 2003 Oldsmobile Alero, 2003 Chevrolet Monte Carlo, and 2003 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic procedure.
- 2 - Command both the ON and OFF states. Repeat the commands as necessary.
- 3 - This step determines if the condition is located on the coil side or the switch side of the circuit.
- 4 - This step verifies that the PCM is providing voltage to the fuel pump relay.
- 5 - This step tests for an open in the ground circuit to the fuel pump relay.
- 6 - This step determines if a voltage is constantly being applied to the fuel pump relay.
- 13 - This step determines if the condition with the circuit is intermittent. If the fuse does not open, inspect the supply voltage circuit between the fuse and the fuel pump for an intermittent condition.
- 15 - Use the same amperage fuse in the jumper that is used to protect the fuel pump circuit.
- 17 - Check the ground connection for the fuel pump. Be certain all ground connections are clean and tight.