Fuel Pump Relay Inspection

INSPECTION OF PUMP RELAY AND RESISTOR






1. INSPECT OF FUEL PUMP RELAY.

NOTE: The relay is located in the left cowl side of engine compartment.










Inspect Relay Continuity
a. Using an ohmmeter, check that there is continuity between terminals +B and FP.
b. Check that there is continuity between terminals + B and FPR.
c. Check that there is no continuity between terminals +B and PR.

If continuity is not as specified, replace the relay.






Inspect Relay Operation
a. Apply battery voltage across terminals +B and FPR.
b. Using an ohmmeter, check that there is continuity between terminals +B and PR.
c. Check that there is no continuity between terminals +B and FP.

If operation is not as described, replace the relay.






2. INSPECT OF FUEL PUMP RESISTOR.
Using an ohmmeter, measure the resistance between both terminals.

Resistance: Approx. 0.7 ohms.