When it comes to Harley Davidson motorcycles, there’s a lot to understand regarding error codes. This article offers an in-depth look at Harley Code P1510. This code is common among Harley Davidson motorcycles, especially those with handlebar alterations. We’ll talk about when you should be concerned, what you should know, and what you can do about the code without making a trip to your local dealer.
Related Reads:
– The Complete Overview Of Harley Davidson Code P1632
– Harley Davidson Code C0077 – The Causes And How To Fix
What Does Harley Code P1510 Mean?
Harley Davidson code P1510 is a diagnostic trouble code (DTC) signifying a throttle actuator control issue. It’s often linked to the throttle-by-wire (TBW) system, a technology that replaces the mechanical linkage between the throttle and the engine with electronic signals.
Here’s a breakdown of all of the Harley Davidson diagnostic codes (including code P1510) in one place:
– Harley Davidson Diagnostic Codes: The Most Complete Guide
What Causes Harley Code P1510?
Several factors can trigger the P1510 code:
- Throttle Grip Sensor (TGS) issues: The TGS acts like a throttle position sensor, transmitting throttle grip position to the Electronic Control Module (ECM). A malfunctioning TGS could trigger a P1510 code.
- Wiring problems: Broken wires or loose connections in the throttle control circuit could cause this code.
- ECM issues: Though rare, a faulty ECM could trigger the P1510 code.
Should You Be Concerned?
Yes, the onset of code P1510 signifies that the motorcycles throttle control system is not functioning as expected. This could lead to unpredictable throttle responses, a serious safety concern.
How To Troubleshoot Harley Code P1510?
- Sensor Reset: Perform a sensor reset as a first step. This process can recalibrate the throttle position sensor without needing to access or dismantle any bike parts.
- Continuity Checks: Use a multimeter to check the continuity of the wiring harness from the TGS to the ECM and throttle body. Look for any breaks or shorts that could be causing the P1510 code.
- Inspect and Repair Wiring: Inspect the wiring for any signs of wear, especially in areas where the harness bends or stretches during handlebar turns. A break may not always be visible, so feeling the wires for inconsistencies can be crucial.
- Throttle Grip Sensor (TGS) Examination: Carefully examine the TGS for any signs of damage or improper installation. Ensure proper alignment and seated correctly within the new handlebars.
How To Repair Harley Code P1510?
Depending on the cause of the P1510 code, we recommend different repair strategies.
- TGS issues: Replace the TGS unit. A new unit costs around $90-$150.
- Wiring Problems: Check the continuity of the wiring harnesses using a wiring diagram. Repair any broken or loose connections.
- ECM issues: This is a rare cause, but if the ECM is at fault, it may require replacement.
How To Clear Code P1510?
Before clearing the code, ensure to fix the underlying issue. Use the video below to understand how to clear the diagnostic trouble code. No OBD-II device required.
What Does The Community Say?
Riders have shared their experiences with code P1510, particularly after handlebar changes. A common thread in the discussions is the delicate nature of the TBW system, which can be easily damaged during handlebar alterations.
Example #1
A rider from the Harley Davidson Forums encountered the P1510 code after installing 13-inch ape hangers on a 2009 Street Glide. The throttle became sluggish, and power felt reduced. A suggested fix was a sensor reset procedure, which involves a specific ignition sequence without touching the throttle grip, potentially resolving the issue without dismantling the handlebars.
Example #2
Another case involved a 2012 Street Glide throwing P1510, along with P2127 and P2138 codes. Initially suspected to be a Throttle Grip Sensor (TGS) failure, the real culprit was a broken wire in the harness near the steering neck, discovered after thorough continuity checks. Repairing the wire resolved the codes, highlighting the importance of checking the wiring harness for hidden issues.
Example #3
A discussion on CVO Harley focused on a 2011 model experiencing P1510 and P2138 after a handlebar swap. Despite the bike running fine, these codes indicated a correlation error between the throttle position and the TGS. The issue persisted even after ensuring no wires were crossed, and the grip sensor was handled delicately, suggesting a deeper problem possibly related to the sensor or its calibration.
How Common Is Harley Code P1510?
Harley Code P1510 seems to be fairly common, especially in bikes with altered handlebars. The TBW system’s sensitivity makes it prone to damage during handlebar modifications.
This deep dive into Harley Code P1510 underscores the importance of a delicate touch when altering handlebars on a Harley-Davidson bike. By understanding this code, you can ensure your bike’s throttle system remains in top shape.
And don’t forget to keep these technical resources with you:
– The Most Important Torque Specs for Harley Davidson Motorcycles
– Harley Davidson Tire Size Chart – The Most Complete Guide
– The Complete Harley Davidson Tire Pressure Chart You Need
Frequently Asked Questions
What Does Harley Code P1510 Indicate?
The P1510 code on a Harley-Davidson motorcycle is associated with an issue in the throttle actuator control system. Specifically, this code is triggered when there is a malfunction in the throttle actuator control (TAC) system, which can be due to electrical issues or problems with the throttle body itself.
What Are Symptoms Of The Harley Code P1510?
When the P1510 code is active, riders might experience a range of symptoms, including irregular throttle response, poor engine performance, or the engine entering a limp mode. The motorcycle might also show erratic idling or difficulty in accelerating. Additionally, the check engine light is likely to illuminate.
Can A Faulty Throttle Body Cause Harley Code P1510?
Yes, a faulty throttle body or a malfunctioning component within it can trigger the P1510 code. Issues such as a stuck throttle plate or a defective throttle position sensor can lead to problems in the throttle actuator control system.
How Serious Is Code P1510 For A Harley Motorcycle?
The P1510 code is quite serious as it pertains to the motorcycle’s throttle system, which is crucial for safe and responsive riding. Ignoring this issue can lead to further complications and can significantly impact the bike’s performance and safety.