Pcm Code E020, Open Fuel Pump Circuit (3 Of 3): Notes
NOTE:
Test numbers refer to numbers on diagnostic chart.
- With ignition on, test light should be off (or light for 2 seconds as relay powers up fuel pump).
- If a short circuit is present, short may be in circuit No. 120, in fuel pump or in PCM. Normal circuit resistance is 3-4 ohms.
- If test light is on steadily, non-switched portion of fuel pump circuit is shorted.
- This checks for PCM shorting circuit No. 120 to ground.
- This checks for short circuit in fuel tank.
- This checks fuel pump for short circuits. Check harness connector.
- This checks circuit No. 120 for a short to ground.
- Check for grounded fuel pump test point, connection at relay center and oil pressure switch. Also check harness for short to ground.