Component Inspection
■ Check fuel pump relay
1.

IG "OFF" and disconnect Fuel Pump Relay connector.

2.

Measure resistance between battery power supply and power supply to fuel pump motor terminals of fuel pump relay. (Measurement "A")

3.

Measure resistance between battery power supply and fuel pump relay control terminals of fuel pump relay.(Measurement "B")

Specification :

Terminal

Continuity

Battery power supply - Power supply to Fuel pump motor

NO

Battery power supply - Fuel pump relay control

YES(Approx. 70Ω ~ 120Ω)

4.

Is the measured resistance within specification ?

▶ Substitute with a known - good ECM and check for proper operation. If the problem is corrected, replace ECM and go to "Verification of Vehicle Repair" procedure.

note

There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by ECM. Before or after testing ECM on the vehicle, use this function to reuse the ECM on the others

▶ Substitute with a known - good Fuel Pump Relay and check for proper operation. If the problem is corrected, replace Fuel Pump Relay and go to "Verification of Vehicle Repair" procedure.

Яндекс.Метрика