Precis L4-1468cc 1.5L SOHC (1993)
Fuel Pump Relay: Testing and Inspection
Related Diagnostic Procedures
California
Fuel Pump Circuit
Power to the fuel pump is controlled by the ECU through the control relay.
OPERATION TEST
To test the pump operation, connect a 12 Volt power source to the pump test connector (located on the firewall, under the intake air boot, next to the
thermostat housing). Remove the fuel cap and listen through the fuel filler neck for the sound of the pump. If the pump operates during the operational
test, continue with the harness test. If no pump sound is heard, check the ground circuit (step #1) and also test the control relay. If no faults are found,
replace the fuel pump.
HARNESS TEST
1. Disconnect the fuel pump connector located on the fuel tank. Using an Ohmmeter, check the ground circuit of the fuel pump between the harness
connector terminal 2 and ground.
Continuity:
Should exist.
