Fuel Pump Electrical Circuit Diagnosis

Document Preview

Click here for full size

    Refer to Engine Controls Connector End Views.

    Circuit Description

    When the ignition switch is first turned on, the PCM energizes the fuel pump relay which applies power to the in–tank fuel pump. The fuel pump relay will remain on as long as the engin...

    Attention!

    To view the rest of this document requires a subscription. Subscriptions start at only $15.00. Click the button below to view the subscription options and to sign up.

    Subscribe

    Notice!

    You may preview the service manual table of contents by clicking below.

    Service Manual Table of Contents

    Document Tags

    Document Title: Fuel Pump Electrical Circuit Diagnosis

    engine

    connector

    circuit

    ignition

    switch

    turned

    fuel

    pump

    relay

    running

    rail

    pressure

    jumper

    battery

    positive

    voltage

    test

    diagnostic

    poor

    connection

    wire

    check

    damaged

    harness

    terminal

    feed

    ground

    driver

    open

    system

    diagnosis

    problem

    electrical

    action

    powertrain

    board

    connect

    disconnect

    light

    probe

    repair

    found

    replace

    refer

    procedures

    modular

    sender

    locate

    complete

    fuel pressure

    pump test

    poor terminal

    pump feed

    feed circuit

    checks fuel

    voltage feed

    driver circuit

    circuit open

    open fuel

    fuel system

    circuit fuel

    pump ground

    ground circuit

    board diagnostic

    system check

    relay connector

    test light

    relay circuit

    problem found

    repair procedures

    procedures electrical

    connector test

    modular fuel

    fuel sender

    locate repair

    repair open

    diagnosis action

    action complete

    check locate

    check replace

    fuel pump fuel

    fuel pressure regulator

    fuel pump test

    connection damaged harness

    fuel pump feed

    pump feed circuit

    checks fuel pump

    positive voltage feed

    fuel pump driver

    pump driver circuit

    open fuel pump

    fuel system diagnosis

    feed circuit fuel

    circuit fuel pump

    fuel pump ground

    pump ground circuit

    ground circuit fuel

    powertrain board diagnostic

    fuel pressure gauge

    jumper fuel pump

    voltage feed circuit

    observe test light

    connect test light

    test light fuel

    light fuel pump

    pump relay connector

    probe fuel pump

    pump relay circuit

    relay circuit open

    system check check

    problem found replace

    found replace terminal

    repair procedures electrical

    diagnosis problem found

    connector test light

    modular fuel sender

    circuit modular fuel

    locate repair open

    repair open fuel

    diagnosis action complete

    system check locate

    check locate repair

    relay repair procedures

    system check replace

    check replace fuel

    replace fuel pump