When do I get a p0121 trouble code?
A general measurement is: at idle = .5 Volts; full throttle = 4.5 Volts. If the PCM detects that the throttle angle is greater or less than it should be for a specific RPM, it will set this code. Symptoms of a P0121 trouble code could include: Malfunction Indicator Lamp (MIL) illumination (Check Engine Light or Service Engine Soon light)
What does trouble code p2135 mean on a car?
The automotive trouble code P2135 throttle/pedal position sensor/switch A/B voltage correlation refers to a problem related to the throttle’s ability to open and close properly. In the 1990’s automotive manufacturers began industry-wide installation of “Drive by wire” throttle control technology.
What is the diagnostic code for throttle / pedal position sensor?
P2135 is a diagnostic trouble code (DTC) for “Throttle/Pedal Position Sensor/Switch A / B Voltage Correlation”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What causes the 2135 code on a PCM?
What causes the 2135 code? 1 Faulty PCM 2 Faulty throttle position sensor (s) 3 Faulty accelerator position sensor 4 Disruption in the throttle position sensor circuit such as an open, corrosion, short, damaged wiring or broken electrical connections
A general measurement is: at idle = .5 Volts; full throttle = 4.5 Volts. If the PCM detects that the throttle angle is greater or less than it should be for a specific RPM, it will set this code. Symptoms of a P0121 trouble code could include: Malfunction Indicator Lamp (MIL) illumination (Check Engine Light or Service Engine Soon light)
The automotive trouble code P2135 throttle/pedal position sensor/switch A/B voltage correlation refers to a problem related to the throttle’s ability to open and close properly. In the 1990’s automotive manufacturers began industry-wide installation of “Drive by wire” throttle control technology.
Why is my VW p0121 throttle position sensor not working?
The reason is because scan tools take samplings of many different readings over just one or two data lines and can miss an intermittent drop out. Hook up your oscilliscope and watch the signal. It should sweep up and down smoothly with no drop outs or spikes. 3. If no problems were noticed, perform a wiggle test.
What are the symptoms of a faulty throttle position sensor?
Symptoms consistent with a faulty throttle position sensor include: hesitation or stumbling upon acceleration, unstable idle, and an illuminated check engine light. In some cases, a no-start condition may even result. How do you troubleshoot code P0121 ?