P2166 - Throttle/Pedal Position Sensor 'D' Maximum Stop Performance

Discussion in 'P - Powetrain Codes' started by fault code, Jun 24, 2017.

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    fault code Administrator Staff Member

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    What is code P2166 mean

    This code indicates that the PCM (or one of the other supporting control modules) has detected a malfunction in a particular throttle pedal position sensor circuit. These control modules may include (but are not limited to) the PCM, the transmission control module, the body control module, the antilock brake control module, the instrument panel control module, the fuel injection control module, the turbo control module, the anti-theft module, the cruise control module, the traction control module, proximity alert module, and the climate control module. Some models initiate a forced idle condition, a forced engine shutdown, or a forced reduction in power, if the PCM recognizes a throttle actuator control system malfunction.

    What is Engine Trouble Codes

    Welcome toEngine Trouble Codesinformation service. EngineTroubleCode.com listed ODB and ODB-II codes with their meanings, reasons and fix ways.These engine trouble codes divided 4 parts : Diagnostic Body (B) Trouble Code ,Diagnostic Network (U) Trouble Code ,Diagnostic Chassis (C) Trouble Code and Diagnostic Powertrain (P) Trouble Code.

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    Possible causes

    • Faulty Electronic Throttle Control (ETC)
    • Electronic Throttle Control (ETC) harness is open or shorted
    • Electronic Throttle Control (ETC) Sensor circuit poor electrical connection
    • Faulty Powertrain Control Module (PCM)
    Possible symptoms

    Symptoms may include black smoke at startup, poor or no acceleration, a no start condition, misfire at idle, start and stall If this code is stored, and a service engine soon lamp has not yet been illuminated, the code may be shown as a pending code.

    P2166 Description

    The Powertrain Control Module (PCM) monitors the electronic throttle for the ability of the throttle plate to reach the upper mechanical stop position within a calibrated amount of time at ignition ON. The P2166 code sets if the throttle plate does not reach the upper mechanical stop position within a calibrated amount of time.

    Common Misdiagnosis


    Symptoms and stored codes that are present as a reaction to a communication failure are often misdiagnosed and repaired as the cause of the problem. Obviously, this leads to an unsuccessful repair. Engine misfire codes, lean exhaust codes, fuel injector codes, and virtually any other drivability or transmission code that is accompanied by a controller communication code can potentially be a pitfall for misdiagnosis. Follow the rule that says to diagnose codes in the order in which they are stored and you will improve you chances for a successful diagnosis. Utilize freeze frame data to help you determine which codes were stored first.

    P2166 - Generic

    Type - Powertrain - Fuel and Air Metering and Auxiliary Emission Controls - ISO/SAE Controlled

    Description -Throttle/Pedal Position Sensor "D" Maximum Stop Performance
     

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