DTC P0138 HO2S Circuit High Voltage Sensor 2

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    Circuit Description

    The PCM supplies a bias voltage of about 450 mV between the HO2S signal and low circuits. When measured with a 10 megohm digital voltmeter, this may display as low as 320 mV. The oxygen sensor varies the voltage within a range of abo...

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    Service Manual Table of Contents

    Document Tags

    Document Title: DTC P0138 HO2S Circuit High Voltage Sensor 2

    circuit

    voltage

    signal

    digital

    oxygen

    sensor

    exhaust

    rich

    lean

    closed

    loop

    operation

    condition

    injector

    hos

    remains

    system

    fuel

    vehicle

    deceleration

    mode

    action

    consecutive

    diagnostic

    test

    failed

    records

    data

    using

    scan

    tool

    aids

    check

    pressure

    refer

    control

    disconnect

    replace

    replacement

    regulator

    engine

    heated

    ground

    indicated

    operate

    indicate

    powertrain

    value

    specified

    monitor

    ignition

    switch

    hos voltage

    voltage remains

    fuel injector

    deceleration fuel

    fuel mode

    diagnostic aids

    fuel pressure

    sensor replacement

    pressure regulator

    heated oxygen

    operate vehicle

    records conditions

    tool indicate

    signal voltage remains

    deceleration fuel mode

    fuel pressure regulator

    heated oxygen sensor

    oxygen sensor replacement

    powertrain control module

    control module replacement

    module replacement programming

    powertrain board diagnostic

    ignition switch review

    switch review record

    scan tool records

    tool records data

    operate vehicle records

    vehicle records conditions

    scan tool monitor

    tool monitor specific

    test runs scan

    runs scan tool

    scan tool indicate