Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 2
   
   Command both the ON and OFF states. Repeat the commands as necessary.
2. 3
   
   This step determines if the condition is located on the coil side or the switch side of the circuit.
3. 4
   
   This step verifies that the battery positive is providing voltage is present at the fuel pump relay.
4. 9
   
   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.
5. 11
   
   Use the same amperage fuse in the jumper that is used in order to protect the fuel pump circuit.
6. 13
   
   Inspect the ground connection for the fuel pump. Be certain all ground connections are clean and tight.