Toyota Tundra Service Manual: Vehicle Control History

VEHICLE CONTROL HISTORY

VEHICLE CONTROL HISTORY

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A part of the control history can be confirmed using the vehicle control history.

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    Control Module Communication Bus OFF (U0073,U0100,U0114,U0123,U0126)

    VSC does not Operate or VSC does not Operate Correctly

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    Toyota Tundra Service Manual > Sfi System: Brake Switch "A" / "B" Correlation (P0504)
    DESCRIPTION The stop light switch is a duplex system that transmits two signals: STP and ST1-. These two signals are used by the ECM to monitor whether or not the brake system is working properly. If the signals, which indicate the brake pedal is being depressed and released, are detected simultaneo ...

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