Part 2 of 3

DTC P020:

Fuel Pump Circuit:

NOTES ON FAULT TREE:
3. Checking for an open in CKT 239 from fuse to fuel pump 1 relay pin "3."

4. Checking for an open in CKT 154 from S405 to fuel pump 1 relay pin "2."

5. Checking if fuel pump will run to isolate a fuel pump control problem from a fuel problem.

6. If greater than or equal to 10 volts is measured, then all fuel pump 1 relay circuitry is OK. Fault is with fuel pump 1 relay.

7. Checking for an open in CKT 120 from fuel pump 1 relay to the fuel pump.

8. Checking for proper control of fuel pump 1 relay by the PCM.

9. Checking for an open in CKT 154 fuel pump ground.