AutoCodes – Hyundai – P2135 Hyundai

P2135 Hyundai Code - Electronic Throttle Control System Malfunction Power Management

Quick Answer

The Electronic Throttle Control (ETC) system is made of the components throttle body, Throttle Position Sensor (TPS )1&2 and Accelerator Position Sensor(APS) 1&2. Common causes include Faulty Throttle Position Sensor (TPS ), Throttle Position Sensor (TPS ) harness is open or shorted, Throttle Position Sensor (TPS ) 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 Hyundai indicates Electronic Throttle Control System Malfunction Power Management.
Common causes: Common causes include Faulty Throttle Position Sensor (TPS ), Throttle Position Sensor (TPS ) harness is open or shorted, Throttle Position Sensor (TPS ) 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 32,336

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2135 Hyundai Description

The Electronic Throttle Control (ETC) system is made of the components throttle body, Throttle Position Sensor (TPS )1&2 and Accelerator Position Sensor(APS) 1&2. The throttle body contains the actuator, the throttle plate and the throttle position sensor (potentiometer), which are integrated in one housing. The actuator consists of a DC motor with a two-stage gear. The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the throttle body. And it provides feedback to the Powertrain Control Module (PCM) to control the throttle motor in order to control the throttle valve opening angle properly in response to the driving condition.

2006 Hyundai Sonata Electronic Throttle Control System

OBDII Code P2135 Hyundai - Electronic Throttle Control System Malfunction Power Management - AutoCodes.com — P2135 Hyundai Code - Electronic Throttle Control System Malfunction Power Management

What does this mean?

What are the Possible Causes of the DTC P2135 Hyundai?

Faulty Throttle Position Sensor (TPS )
Throttle Position Sensor (TPS ) harness is open or shorted
Throttle Position Sensor (TPS ) circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P2135 Hyundai?

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 P2135 Hyundai 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 Hyundai Code

1. What does the OBDII code P2135 mean on a Hyundai?

P2135 indicates an issue with the Electronic Throttle Control System, specifically a correlation problem between the throttle position sensors (TPS).

2. What are the common symptoms of code P2135 in a Hyundai?

Symptoms include reduced engine power, poor throttle response, stalling, rough idling, or the activation of the "Check Engine" light.

3. What causes the P2135 code on a Hyundai vehicle?

Common causes include a faulty throttle position sensor, wiring or connector issues, a damaged throttle body, or a malfunction in the power management system.

4. Can I drive my Hyundai with a P2135 code?

Driving with this code is not recommended as it can cause unsafe conditions like sudden power loss or stalling.

5. How do I fix the P2135 code on my Hyundai?

Repairs may involve replacing the throttle position sensor, cleaning or replacing the throttle body, repairing damaged wiring, or reprogramming the engine control unit (ECU).

6. How is the P2135 code diagnosed on a Hyundai?

A mechanic will use a scan tool to check the TPS signals, inspect the wiring and connectors, and test the throttle body for proper operation.

7. What does the throttle position sensor (TPS) do in my Hyundai?

The TPS monitors the position of the throttle plate and sends this information to the ECU to control engine power and fuel delivery.

8. Can a dirty throttle body cause the P2135 code on a Hyundai?

Yes, a dirty or clogged throttle body can cause inconsistent readings from the throttle position sensors, triggering this code.

9. How much does it cost to fix a P2135 code on a Hyundai?

Repair costs can vary from $100 to $500, depending on whether the issue is a sensor, wiring, or throttle body replacement.

10. Will clearing the P2135 code fix the issue permanently?

Clearing the code will only reset the warning temporarily. The underlying issue causing the code must be diagnosed and repaired to resolve it permanently.