Rick's Free Auto Repair Advice

Posts Tagged: check engine light codes

P2135 Code — What it means, how to fix

Learn what a P2135 code means and how to diagnose and fix the problem A P2135 code is defined as Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation. A throttle position sensor tells the ECM exactly how far to open or close the throttle plate. This code is used almost exclusively in engines equipped with an electronic throttle body and an electronic accelerator pedal (gas pedal). In these “drive by wire” systems, the ECM receives input from the accelerator pedal and transmits the commands to the electronic throttle body. Both the accelerator … Read More


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