Aug 30, 2024 · The P2138 code indicates a problem with the correlation between the two accelerator pedal position sensors in the vehicle. These sensors are responsible for monitoring the position of …

The automotive trouble code P2138 throttle/pedal position sensor/switch D/E voltage correlation refers to a problem related to the throttle's ability to open and close properly. In the 1990's automotive …

What exactly should you expect with the P2138 code? We dive into the common causes and symptoms of this OBD code so that you can be better prepared when it shows.

This guide explains the P2138 code’s meaning, symptoms, causes, and step-by-step diagnostics to fix it like a pro—potentially saving you $600-$1,200 from overpriced throttle body and sensor repairs.

Jan 3, 2026 · This guide will walk you through the precise steps to identify the source of the sensor mismatch and perform the targeted repairs required to clear the P2138 code.

Jan 5, 2026 · This article will look at the possible causes of a P2138 code being stored, its seriousness, as well as the steps you should take to properly fix and clear this code.

Jun 23, 2022 · In this video, our mechanic breaks down the P2138 code, its symptoms, including poor acceleration and reduced power mode, and shows you how to diagnose the potential causes so you …

Mar 22, 2025 · The P2138 trouble code indicates a voltage correlation error between the D and E circuits of the throttle or pedal position sensors, often due to faulty sensors, wiring issues, or throttle …

Nov 21, 2025 · Complete guide to the P2138 trouble code: symptoms, causes, and repair costs. Learn professional diagnosis with Foxwell scanners and step-by-step DIY methods. Discover fixes for …

Reading P2138 on your scan tool? Learn what this error code means and what to do about it.