P2135 Harley Code: Understanding and Resolving the Issue

As motorcycle enthusiasts, we know how frustrating it can be when your bike’s check engine light comes on. One of the most common trouble codes that Harley riders encounter is P2135. This engine code indicates a problem with the throttle position sensor (TPS) and can cause a range of issues with your bike’s performance.

Understanding P2135 Harley Code is very important for riders to diagnose and fix the issue. Symptoms of this code can include a lack of acceleration, stalling, and poor fuel economy. If left untreated, it can even cause damage to your engine. In this article, we will explore the causes, symptoms, and repair options for P2135 Harley Code so you can get back on the road with confidence.

Key Takeaways:

• Understanding P2135 Harley Code is crucial for diagnosing and fixing issues with your bike’s performance.
• Symptoms of this code can include a lack of acceleration, stalling, and poor fuel economy.
• Repair options for P2135 Harley Code include replacing the throttle position sensor, cleaning the throttle body, and resetting the ECU.

Understanding P2135 Harley Code

When it comes to Harley Davidson motorcycles, the P2135 code is a common issue that riders may encounter. This code refers to a Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation error. Essentially, it means that there is a problem with the communication between the throttle position sensor and the engine control module.

The throttle position sensor is responsible for monitoring the position of the accelerator pedal. It sends a signal to the engine control module, which then adjusts the throttle position accordingly. If there is a problem with the throttle position sensor, it can cause the P2135 code to appear.

Another possible culprit of the P2135 code is the throttle body position sensor. This sensor is responsible for monitoring the position of the throttle body actuator. If there is a problem with this sensor, it can cause the engine control module to receive incorrect information, resulting in the P2135 code.

In some cases, the issue may be related to the TPS correlation error. This error occurs when there is a discrepancy between the readings of the two throttle position sensors. If one sensor is reading at half throttle while the other is reading at full throttle, it can trigger the P2135 code.

To diagnose and fix the P2135 code, it is essential to have a thorough understanding of the throttle control system. This includes the accelerator pedal position sensor, the throttle position sensors, and the engine control module. In some cases, the issue may be as simple as a loose wire or connector, while in other cases, it may require replacing a faulty sensor or module.

In conclusion, the P2135 code is a common issue that Harley Davidson riders may encounter. It is very important to have a basic understanding of the throttle control system and the various sensors and modules involved. By keeping an eye out for potential issues and addressing them promptly, riders can ensure that their motorcycles continue to run smoothly and reliably.

Symptoms and Diagnosis

When it comes to the P2135 Harley code, there are a few symptoms that you may experience. One of the most common symptoms is the check engine light coming on. This light is a warning that something is wrong with your vehicle and needs to be addressed.

Another symptom is stalling or hesitation when accelerating. You may also experience surging or revving of the engine, or even a stall out. These symptoms can be frustrating and dangerous, especially if they occur while you’re on the road.

If you’re experiencing any of these symptoms, it’s important to diagnose the issue as soon as possible. One way to diagnose the problem is to use a scan tool. This tool can help you read the freeze frame data and determine the cause of the problem.

Another way to diagnose the issue is to check the wiring and connectors. Open or short circuits, as well as damaged wiring, can cause the P2135 code to appear. Back probes and a multimeter can be used to check the ohm levels and ensure that the wiring is functioning properly.

It’s important to note that the P2135 code can also put your vehicle in limp mode. This means that your vehicle will not perform at its full potential and may only allow you to drive at a certain speed.

If you’re comfortable with DIY repairs, you may be able to fix the issue yourself. However, if you’re not experienced with vehicle repairs, it’s best to take your vehicle to a professional mechanic for diagnosis and repair.

In conclusion, if you’re experiencing symptoms such as stalling, hesitation, or surging, it’s very important to diagnose the issue as soon as possible. Using a scan tool, checking wiring and connectors, and seeking professional diagnosis and repair can help you get back on the road safely.

Repair and Maintenance

When it comes to repairing and maintaining your Harley, it’s essential to find a skilled mechanic who knows the ins and outs of your make and model. Repairs can be costly, especially if you’re dealing with an electrical issue like the P2135 code. However, it is very important to address the issue promptly to avoid further damage to your bike.

One common cause of the P2135 code is faulty wires or electrical connections. A skilled mechanic can diagnose the issue and replace any damaged wires or connections. It’s important to note that replacing parts may not always be necessary, so don’t assume the worst until you’ve had your bike checked out by a professional.

If you’re still under warranty, make sure to check with your dealer to see if the repairs are covered. If not, you may want to consider shopping around for the best repair cost. You can even schedule an appointment online with many shops to save time and hassle.

In some cases, an ECM flash may be necessary to fix the issue. This is a technical service bulletin that Harley has issued for some models. Your mechanic can perform this procedure to update your bike’s software and fix the P2135 code.

It’s also important to make sure that your handlebars are properly adjusted and tightened. Loose handlebars can cause issues with the throttle position sensor and lead to the P2135 code.

At the end of the day, the P2135 code can be a perplexing issue, but with the right mechanic and proper maintenance, you can get back on the road with confidence. Remember to always stay on top of your bike’s maintenance to avoid costly repairs down the road.

Cost and Warranty

When it comes to fixing the P2135 Harley code, the cost and warranty can vary depending on the dealership and the extent of the damage. It is very important to ask for a quote before proceeding with any repairs to avoid any surprise costs.

If your motorcycle is still under warranty, it is best to take it to an authorized Harley dealership for repairs. This way, you can ensure that the repairs are done correctly and that the warranty will cover the costs. However, if your motorcycle is not under warranty, you may want to consider taking it to an independent mechanic who specializes in Harley motorcycles.

The cost of repairs for the P2135 Harley code can range from a few hundred dollars to over a thousand dollars, depending on the extent of the damage and the cost of the parts needed. It is important to ask for a quote before proceeding with any repairs to avoid any surprise costs.

When it comes to the warranty, it is important to note that not all repairs will be covered. It is best to check with your dealership or mechanic to see what repairs are covered under your warranty. If the repairs are not covered, you will be responsible for the cost of the repairs.

In conclusion, the cost and warranty for fixing the P2135 Harley code can vary depending on the dealership and the extent of the damage. It is very important to ask for a quote and to check your warranty before proceeding with any repairs.