Powertrain Control Module Controlled Warning Lamps Diagnosis

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    Circuit Description

    The PCM controlled lamps are powered through the IGN 1 fuse. The PCM turns on the bulb, LED, or driver info center indicator by supplying a path to ground through the PCM.

    Diagnostic Aids

    A PCM controlled lamp on at all times most li...

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    Service Manual Table of Contents

    Document Tags

    Document Title: Powertrain Control Module Controlled Warning Lamps Diagnosis

    circuit

    controlled

    fuse

    driver

    indicator

    ground

    diagnostic

    lamp

    condition

    generator

    following

    engine

    system

    voltage

    seconds

    commands

    control

    terminal

    level

    ignition

    test

    switch

    coolant

    temperature

    current

    diagnosis

    instrument

    panel

    check

    cluster

    electrical

    poor

    connection

    harness

    disconnect

    affected

    output

    problem

    feed

    short

    amps

    open

    faulty

    powertrain

    replacement

    action

    value

    turn

    using

    measure

    specified

    locate

    repair

    procedures

    complete

    replace

    found

    level lamp

    level switch

    engine coolant

    instrument cluster

    output circuit

    ignition feed

    system check

    ignition switch

    turn ignition

    measure voltage

    voltage affected

    ground voltage

    voltage specified

    specified value

    disconnect instrument

    panel cluster

    procedures electrical

    action complete

    indicator lamps

    feed circuit

    check affected

    problem found

    diagnosis problem

    engine coolant temperature

    output driver circuit

    powertrain control module

    control module replacement

    module replacement programming

    powertrain board diagnostic

    turn ignition switch

    measure voltage affected

    ground voltage specified

    voltage specified value

    disconnect instrument panel

    instrument panel cluster

    locate repair short

    circuit repair procedures

    repair procedures electrical

    diagnosis action complete

    ignition feed circuit

    panel cluster indicator

    cluster indicator lamps

    indicator lamps repair

    lamps repair procedures

    circuit instrument panel

    diagnosis problem found

    output circuit ignition

    circuit ignition feed

    circuit poor connection

    problem found replace

    found replace faulty

    replace faulty terminal

    using scan tool