AutoCodes – Generic – P2136

P2136 Code - Throttle/Pedal Position Sensor/Switch 'A'/'C' Voltage Correlation

Quick Answer

The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. Common causes include Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit poor electrical connection, Faulty Accelerator Pedal Position Sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2136 indicates Throttle/Pedal Position Sensor/Switch 'A'/'C' Voltage Correlation.
Common causes: Common causes include Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit poor electrical connection, Faulty Accelerator Pedal Position Sensor.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 22,745

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P2136 Description

The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. There are 2 pedal position signals in the sensor. Both signals, APP and APP2, have a positive slope (increasing angle, increasing voltage), but are offset and increase at different rates. The 2 pedal position signals make sure the PCM receives a correct input even if 1 signal has a concern. The PCM determines if a signal is incorrect by calculating where it should be, inferred from the other signals. If a concern is present with one of the circuits the other input is used. There are 2 reference voltage circuits, 2 signal return circuits, and 2 signal circuits (a total of 6 circuits and pins) between the PCM and the APP sensor assembly. The pedal position signal is converted to pedal travel degrees (rotary angle) by the PCM. The software converts these degrees to counts, which is the input to the torque based strategy. If the APP sensor inputs APP1 and APP2 disagree on the position of the accelerator pedal by more than an expected value, the P2138 is set.

OBDII Code P2136 - Throttle/Pedal Position Sensor/Switch 'A'/'C' Voltage Correlation - AutoCodes.com — P2136 Code - Throttle/Pedal Position Sensor/Switch 'A'/'C' Voltage Correlation

What does this mean?

What are the Possible Causes of the DTC P2136?

Accelerator Pedal Position Sensor harness is open or shorted
Accelerator Pedal Position Sensor circuit poor electrical connection
Faulty Accelerator Pedal Position Sensor
Faulty Electric Throttle Control Actuator

How to Fix the DTC P2136?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2136 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Makes

P2136 Dodge — Throttle/Pedal Position Sensor/Switch 'A'/'C' Voltage Correlation

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2136 Code

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Nyamu
Date: April 18, 2015 at 10:13 am

I got a mazda bongo diesel (drive by wire). It starts well but cant have a full rav. In fact its in limp home mode. Initially the two output voltages from the pedal sensor where low as indicated by a code reader. one had a minimum of 0,26v (at idling position) and a maximum of 2,69v (pedal on the floor). The engine check light would come on. The DPF light slashes constantly. I adjusted the pedal sensor so that I got 0,8v at idling and the engine check light went out but if I press the accelerator pedal down maximum the mil comes back and the pedal is disabled until I reset by disconnecting the battery. The engine was changed. The whole throttle was changed also and put a new pedal sensor. The VIN is SKF2T

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