Description

If fuel pump is operated directly, fuel pump relay power circuit should be checked. The purpose of the inspection is to check fuel pump relay power circuit.

Diagnostic Procedure
Fuel pump relay power circuit Inspection
1.

Disconnect Fuel Pump Relay.

2.

IG "ON"

3.

Measure the voltage between terminal "85" of the fuel pump relay(Junction box side) and chassis ground.

caution

Probe(+): Terminal "85" of the fuel pump relay(Junction box side).

Probe(-) : chassis ground

A.

Specification : approx. B+

4.

Is the measured voltage within Specification?

YES

Go to "fuel pump relay control circuit Inspection" procedure.

NO

Check the Sensor1 fuse(10A).

Check the engine control relay.

Check the U/H Junction box.

Яндекс.Метрика