FUEL PUMP RELAY INSPECTION [G6]

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Simulation Test

1.  Carry out the “Fuel Pump Operation Inspection”“Fuel Pump Control Inspection”. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [G6].)

Continuity Inspection

Note

•  Perform the following test only when directed.

1.  Disconnect the negative battery cable.

2.  Remove the fuel pump relay located under the passenger’s side front side trim.

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3.  Inspect for continuity between the fuel pump relay terminals.

•  If not as specified, replace the fuel pump relay.

•  If as specified but the “Simulation Test“ is failed, inspect for the following:

―  Fuel pump unit malfunction

Open Circuit

•  ground circuit (fuel pump relay connector terminal B and PCM connector terminal 1H through common connector)

•  ground circuit (fuel pump relay connector terminal D and fuel pump unit connector terminal B through common connector)

•  Power circuit (fuel pump relay connector terminal A or C and ignition switch connector terminal lG1 through common connector)

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Short Circuit

•  Fuel pump relay connector terminal B and PCM connector to terminal 1H through common connector to ground

•  Fuel pump relay connector terminal D and fuel pump unit connector terminal B through common connector to ground

4.  Repair or replace faulty areas.

5.  Install the fuel pump relay.

6.  Reconnect the negative battery cable.