Fixing Error Code P2135: A Step-by-Step Guide

Code P2135 is an OBD-II diagnostic trouble code that indicates a malfunction in the Throttle/Pedal Position Sensor/Switch (TPS) “A” Circuit. This code is associated with the vehicle’s throttle system and is typically caused by a faulty TPS.

The TPS is responsible for measuring the position of the accelerator pedal and relaying this information to the engine control module (ECM). When the ECM detects an issue with this signal, it sets a trouble code and illuminates the Check Engine Light.

In order to fix code P2135, you will need to inspect and repair any issues with the throttle system. This includes checking for loose connections, inspecting wiring harnesses for damage, and testing components such as the throttle position sensor and accelerator pedal switch. If these components are found to be faulty, they should be replaced as soon as possible.

Once all repairs have been completed, you will need to clear the trouble codes from your ECM using a scan tool. After doing so, you should be able to start your vehicle without any issues.

How to Diagnose and Fix Code P2135 on an Automobile

Understanding the code P2135 is the first step in diagnosing and fixing any issue with your automobile. This code indicates a problem with the Throttle Position Sensor (TPS) or Accelerator Pedal Position (APP) sensor. In order to properly diagnose and fix this code, it is important to inspect the wiring and connectors, test the TPS and APP sensors, check for vacuum leaks in the intake system, clean any corroded ground connections, and replace any faulty components.

Common Causes of Code P2135 in Automobiles

There are a variety of common causes for this code to appear. These include defective TPS sensors, faulty wiring or connectors, defective APP sensors, computer malfunctions, and damaged throttle body assemblies. All of these issues can lead to erratic engine performance or stalling.

How to Troubleshoot Code P2135 in Automobiles

The best way to troubleshoot this issue is by visually inspecting all of the electrical connections and harnesses for any signs of damage or corrosion. Once that is done, you will need to test the TPS sensor and APP sensor with a multimeter. If either of these components are malfunctioning, they should be replaced immediately. It is also important to check for vacuum leaks in the intake system as well as clean any corroded ground connections that may be causing issues with your automobile’s electrical system.

How to Replace a TPS Sensor on an Automobile?

Replacing a TPS sensor on an automobile requires gathering together all necessary tools and supplies before starting work. You will then need to locate and disconnect the throttle position sensor wires before removing the old TPS sensor from its mounting bracket. The new sensor can then be installed before reattaching all wires and cover plates. Finally, you should test your new TPS installation by turning on your engine and checking for proper performance at various RPMs.

Types of Automobile Throttle Position Sensors

There are several different types of automobile throttle position sensors available including variable reluctance sensors, hall effect sensors, potentiometer sensors, opto electronic sensors, etc. Depending on your specific vehicle model you may need one type over another as each type has its own set of advantages when it comes to detecting throttle position accurately. Overall however they all work in similar ways by measuring either voltage or resistance levels within their particular circuits when detecting throttle position changes from one RPM range to another RPM range.

How to Fix Code P2135 on an Automobile

P2135 is a fault code that indicates a malfunction in the throttle position (TP) sensor. It can cause engine performance issues, poor fuel economy, and engine stalling or hesitation on acceleration. It’s important to diagnose and fix this code quickly to ensure your vehicle runs properly. In this article, we’ll discuss what an APP (Accelerator Pedal Position) Sensor is, common problems with APP Sensors, testing procedure for an APP Sensor, common symptoms of a bad or failing TPS (Throttle Position) Sensor, reasons why a vehicle cuts out and stalls when accelerating, ways to prevent code P2135 from occurring again and the tools needed to diagnose and fix code P2135 on an automobile.

What is an Accelerator Pedal Position (APP) Sensor?

The Accelerator Pedal Position (APP) Sensor is used by the electronic engine control system or powertrain control module (PCM) to monitor the position of the accelerator pedal. It helps determine how much fuel is needed for the engine to run efficiently. The APP sensor is located behind the accelerator pedal assembly and consists of two contacts that produce signals when they come into contact with each other. The signals are then sent to the PCM which uses this information for fuel injection calculations.

Common Problems with APP Sensors

Common problems associated with APP sensors include corrosion of the contacts due to water ingress, which can cause inaccurate readings; incorrect installation which can lead to false readings; faulty wiring harnesses; and loose connections between components. Additionally, mechanical wear or damage may be present resulting in incorrect readings as well as incorrect calibration of the sensor resulting in inaccurate readings being sent to the PCM.

Testing Procedure for an APP Sensor

To determine if an APP sensor is functioning correctly, it’s important that you have a multimeter device on hand so you can take accurate readings from each contact point. You should also check all electrical connections and harnesses for any signs of corrosion or damage before beginning your testing procedure. First, you should turn off your vehicle’s ignition and disconnect its battery before removing any components from your vehicle for safety reasons. Once disconnected, use your multimeter device to measure resistance between each contact point on the APP sensor while moving the accelerator pedal through its full range of motion multiple times until you get consistent results within manufacturer specifications. If resistance readings are not within specifications or if reading fluctuate erratically you will need replace your APP sensor with a new one before continuing with diagnosis procedures.
 

Common Symptoms of a Bad or Failing Throttle Position (TPS)Sensor

If an issue arises with your TPS sensor it can cause several symptoms including: engine performance issues such as reduced power output; poor fuel economy due to inefficient fuel delivery; engine stalling or hesitation on acceleration; misfires; rough idling; and/or poor shifting from automatic transmissions due to incorrect shift timing calculations made by the PCM based on inaccurate throttle position data received from TPS sensors .  It’s important that you address any of these symptoms immediately in order ensure your vehicle runs smoothly without any issues arising from faulty TPS sensors .
   

Reasons Why a Vehicle Cuts Out and Stalls When Accelerating

There are several reasons why a vehicle may cut out and stall when accelerating including clogged air filters , dirty fuel injectors , faulty ignition coil packs , faulty oxygen/air flow sensors , worn spark plugs , low oil levels causing insufficient lubrication , worn camshaft bearings , vacuum leaks due improper intake manifold installation , low coolant levels resulting in overheating engines , faulty oxygen sensors sending inaccurate air/fuel mixture data back to PCMs which results in improper air/fuel mixtures . All these issues must be addressed quickly in order ensure safe operation of vehicles .
   

Ways To Prevent Code P2135 From Occurring Again

 To prevent code P 2 135 from occurring again it’s important that all electrical connections & harnesses are regularly inspected for signs of corrosion & wear . Additionally make sure all parts used during repairs are high quality parts certified by their respective manufacturers . Additionally routine maintenance such as changing spark plugs & filters should be performed regularly according manufacturer recommended intervals . Lastly make sure there are no vacuum leaks present by inspecting intake manifolds & hoses for signs of damage & wear .
   

Tools Needed To Diagnose And Fix Code P 2 135 On An Automobile In order diagnose & fix code P 2 135 it’s important that certain tools are available such as OBD II scanner tool ; multimeter device ; torque wrench set ; vacuum tester ; compression tester ; pressure gauge set ; coolant system flush kit ; spark plug socket set ; oil filter wrench set ; oil drainage pan etc . All these tools will help address underlying issues causing code P 2 135 ensuring vehicles run smoothly without any performance issues arising due underlying problems caused by malfunctioning components .

FAQ & Answers

Q: What is Code P2135?
A: Code P2135 is an OBD-II diagnostic trouble code (DTC) that is triggered when the throttle position sensor (TPS) and the accelerator pedal position (APP) sensor do not correlate, or are out of range.

Q: What are the common causes of Code P2135?
A: The common causes of code P2135 are defective TPS sensor, faulty wiring and connectors, defective APP sensor, computer malfunction, and damaged throttle body assembly.

Q: What are the symptoms of a bad or failing Throttle Position Sensor (TPS)?
A: The symptoms of a bad or failing Throttle Position Sensor (TPS) include engine performance issues, poor fuel economy, and engine stalling or hesitation on acceleration.

Q: How can I prevent Code P2135 from occurring again?
A: To prevent code P2135 from occurring again, you should regularly inspect all electrical connections and harnesses, check fuel system components for wear or damage, and use high quality replacement parts when replacing components.

Q: What tools are needed to diagnose and fix Code P2135 on an automobile?
A: The tools needed to diagnose and fix code P2135 on an automobile include an OBD II scanner tool, a multimeter device, and a torque wrench set.

In conclusion, fixing a code P2135 can be a complicated and time consuming process, depending on the make and model of the automobile. However, the most common cause of this code is an electrical issue with the throttle body or wiring harness, so it is important to start by inspecting these components first. If no issues are found with the wiring or throttle body, then more advanced diagnostics may need to be performed to identify the exact cause of the problem.

Author Profile

Carl Frisch
Carl Frisch
With more than 30 years in the bicycle industry, I have a strong background in bicycle retailing, sales, marketing and customer service. I have a passion for cycling and a dedication to excellence. As a manager, I worked diligently to increase my capabilities and responsibilities, managing up to eleven mechanics (at Palo Alto Bicycles) and later as a working partner in my own store.

As the shop owner of Spoke n’ Word Cycles in Socorro, NM, the success of the mission was my responsibility, which I pursued passionately since we opened in 2003 through the spring of 2011. I am adept at managing owned and loan inventory, preparing weekly & annual inventory statements, and managing staff. The role as managing partner also allowed me tremendous freedom. I used this personal freedom to become more deeply involved in my own advancement as a mechanic, to spearhead local trail building, and advocating for cycling both locally and regionally.

As a mechanic, I have several years doing neutral support, experience as a team mechanic, and experience supporting local rides, races, club events. I consistently strive to ensure that bicycles function flawlessly by foreseeing issues and working with the riders, soigners, coaches and other mechanics. Even with decades of experience as a shop mechanic and team mechanic, and continue to pursue greater involvement in this sport as a US Pro Mechanic, and UCI Pro Mechanic.

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