AutoCodes – Chevrolet – P2135 2014 Chevrolet Silverado

P2135 2014 Chevrolet Silverado Code - Throttle Position Sensors 1-2 Not Plausible

Quick Answer

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. Common causes include Faulty Throttle Body Assembly, Throttle Body harness is open or shorted, Throttle Body circuit poor electrical connection. 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: P2135 2014 Chevrolet Silverado indicates Throttle Position Sensors 1-2 Not Plausible.
Common causes: Common causes include Faulty Throttle Body Assembly, Throttle Body harness is open or shorted, Throttle Body circuit poor electrical connection.
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 802

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 May 20, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P2135 2014 Chevrolet Silverado Description

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. The throttle position sensor is mounted within the throttle body assembly and is not serviceable. The Engine Control Module (ECM) supplies the throttle body with a 5 V reference circuit, a low reference circuit. The asynchronous signal means communication is only going from the throttle body to the ECM. The throttle body cannot receive data from the ECM over the signal/serial data circuit. The throttle position sensor provides a signal voltage that changes relative to throttle blade angle. The throttle position sensor information is transmitted between the throttle body and the ECM on the signal/serial data circuit. The ECM decodes the serial data signal and is used as voltages for throttle position sensor 1 and 2. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that throttle position sensors 1 and 2 disagree greater than 7 - 10 percent for greater than 1 s.

OBDII Code P2135 2014 Chevrolet Silverado - Throttle Position Sensors 1-2 Not Plausible - AutoCodes.com — P2135 2014 Chevrolet Silverado Code - Throttle Position Sensors 1-2 Not Plausible

What does this mean?

What are the Possible Causes of the DTC P2135 2014 Chevrolet Silverado?

Faulty Throttle Body Assembly
Throttle Body harness is open or shorted
Throttle Body circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2135 2014 Chevrolet Silverado?

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 does this mean?

Code Tech Notes

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2135 2014 Chevrolet Silverado 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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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 P2135 2014 Chevrolet Silverado Code

1. What does OBDII code P2135 mean on a 2014 Chevrolet Silverado?

P2135 indicates a correlation issue between the readings of Throttle Position Sensor (TPS) 1 and TPS 2, meaning the sensors are not providing matching data to the engine control module (ECM).

2. What are the common symptoms of code P2135 in a 2014 Chevrolet Silverado?

Symptoms may include reduced engine power mode (limp mode), poor throttle response, hesitation during acceleration, the check engine light turning on, and sometimes stalling.

3. What are the main causes of P2135 in a 2014 Chevy Silverado?

Common causes include a faulty throttle body, damaged throttle position sensors, wiring or connector issues, or even a failing ECM.

4. Can a dirty throttle body trigger code P2135?

Yes, a dirty or carbon-clogged throttle body can cause the sensors to send inaccurate readings, leading to the P2135 code.

5. Is it safe to drive with code P2135 on a 2014 Chevrolet Silverado?

Driving is not recommended as the vehicle may enter reduced engine power mode, causing safety risks like sudden loss of power.

6. How can I diagnose the cause of code P2135?

Start by inspecting the throttle body and its wiring for damage, cleaning the throttle body if needed, and using a scan tool to compare data from TPS 1 and TPS 2.

7. How do I fix code P2135 on a 2014 Chevrolet Silverado?

Fixes may involve cleaning or replacing the throttle body, repairing faulty wiring or connectors, or replacing the throttle position sensors if they are defective.

8. Do I need to replace the entire throttle body for code P2135?

Not always. If the issue is with the sensors or wiring, replacing the throttle body may not be necessary. However, if the throttle body itself is malfunctioning, replacement might be required.

9. Can a software update fix the P2135 code on a 2014 Chevrolet Silverado?

In some cases, a software update from the dealership can resolve the issue, especially if the ECM is misinterpreting the sensor data.

10. How much does it cost to repair code P2135 on a 2014 Chevrolet Silverado?

Repair costs vary but typically range from $200 to $600, depending on whether you need to clean the throttle body, repair wiring, or replace components like the throttle body or sensors.