Fuel Pump Relay Test
- Open hood and remove relay panel cover near left rear corner of engine compartment. Lightly place finger on fuel pump relay. Have assistant turn ignition to "RUN" position. If relay "clicks", relay is good. If relay does not "click", remove relay from panel.
- Connect ohmmeter between terminal Nos. 85 and 86 on relay. If meter reads less than or greater than 85 ohms, replace relay. See Fig 1 .
- Connect jumper wire from alternator output terminal to relay terminal No. 86 and another jumper wire from relay terminal No. 85 to a good chassis ground. When ground connection is made, relay should "click" and ohmmeter should show continuity between terminal Nos. 87 and 30. Replace relay if continuity is not present.
- With relay removed from panel, use an ohmmeter to check for continuity between in-line fuse terminal (on underside of panel) and relay terminal No. 87. If no continuity is measured, repair open circuit. Pumps should run after repair.
- If pumps do not run, remove relay from panel and connect test light between ground and relay terminal No. 30 in relay panel. If light does not come on, repair open in circuit. Pumps should run after repair.
- If pumps do not run, remove relay from panel and connect test light between ground and relay terminal No. 86 in relay panel. Turn ignition switch to "RUN" position and observe test light. If test light does not come on, repair open in circuit. Pumps should run after repair.
- If pumps do not run, remove relay from panel and connect ohmmeter between relay terminal No. 85 in relay panel and Electronic Control Assembly (ECA) harness connector pin No. 22. If continuity exists, problem is not in fuel pump circuit. If continuity does not exist, repair open in circuit.