Aug 30, 2024 · Code P2138 indicates a mismatch or correlation issue between the two signals from the accelerator pedal position sensors, which are responsible for monitoring pedal movement.

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 …

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.

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.

Dec 9, 2024 · What does the P2138 code mean? The P2138 code indicates a problem with the throttle or pedal position sensor. Specifically, it points to an issue with the correlation of voltage between …

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 …

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.

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 …

P2138 Code – Symptoms, Causes, and How to Fix It Drivers who encounter a P2138 fault quickly notice that the vehicle’s throttle does not behave as expected. The check‑engine light illuminates, and a …