Fuel Pump Signal: Testing and Inspection

1. Pull the fuel pump relay from the relay panel (relay #10), and connect a voltmeter across sockets 46 and 47 on the relay panel.
Approximately 9.5 vdc should be available while cranking the starter.
2. If voltage is not within specification, check voltage between terminal 46 and ground.
a. With the ignition ON, approximately battery voltage should be available.
b. If voltage is not available, repair wiring as necessary.
c. If wiring is OK, replace ignition control unit.
3. If voltage is within specification, check the fuel pump relay (by substituting a known good relay), and check the fuel pump for proper output volume, and current draw.