2001 Jeep Wrangler Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2001 Jeep Wrangler and How to Fix Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2001 Jeep Wrangler cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2001 Jeep Wrangler cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When the throttle position sensor fails, the engine's computer tends to overcompensate with fuel, leading black exhaust coming from the tailpipe. There is a strong possibility of engine misfires, and the check engine light will come on.

Throttle position sensors can also develop "dead spots," or certain places along the throttle curve where it doesn't get a reading. When this happens, the above symptoms can occur but then stop when you further press or let off the gas pedal.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

What are the initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2001 Jeep Wrangler?

When faced with a non-functioning cruise control in your 2001 Jeep Wrangler, it's essential to adopt a systematic diagnostic approach. Begin by checking the fuse associated with the cruise control system, as a blown fuse can be a simple yet common culprit. Next, inspect the wiring for any signs of damage or loose connections, as these can disrupt the necessary signals for the system to operate. After ensuring the wiring is intact, test the cruise control buttons on the steering wheel to confirm they are functioning properly; faulty buttons can prevent engagement. Additionally, since older models like the Wrangler may rely on vacuum lines, inspect these for any leaks or damage that could hinder performance. Utilizing a diagnostic scanner to check for error codes can provide insights into specific issues affecting the cruise control system. Lastly, verify that the vehicle's speed sensor is operational, as a malfunctioning sensor can impede the cruise control's ability to maintain speed. By following these steps, you can effectively troubleshoot and potentially resolve the cruise control issue in your Jeep Wrangler. If problems persist, consider seeking assistance from a professional mechanic for further diagnosis.

What are the common problems that could cause the cruise control to stop working in a 2001 Jeep Wrangler?

When troubleshooting the cruise control system in a 2001 Jeep Wrangler, it's essential to consider several common problems that could be at play. One of the first areas to check is the brake light switch, as a faulty switch can prevent the cruise control from engaging; this switch is designed to disengage the system when the brake pedal is pressed. Additionally, a defective speed sensor can disrupt the system's ability to maintain a constant speed, making it another critical component to inspect. It's also wise to examine the vehicle's fuse box for any blown fuses, as this can lead to complete cruise control failure. Furthermore, vacuum leaks within the cruise control system can hinder its performance, so checking for any leaks is advisable. Lastly, the cruise control module itself may be malfunctioning, which could prevent the system from engaging or maintaining speed. By systematically checking these components, DIYers can effectively diagnose and potentially resolve the issues affecting their Jeep's cruise control system.

How urgent is it to address the non-functioning cruise control in a 2001 Jeep Wrangler?

Addressing a non-functioning cruise control in a 2001 Jeep Wrangler is important, even if it may not seem like an immediate emergency. While the absence of this feature does not directly compromise safety, it can lead to driver fatigue and distraction during long drives, as the driver must constantly monitor and adjust their speed. Moreover, neglecting the issue could result in further complications, such as damage to the vehicle's electrical system or related components, which may escalate repair costs and complexity. By taking the time to diagnose and fix the cruise control system promptly, you not only enhance your driving experience but also prevent potential long-term damage to your vehicle. Therefore, while it may not be critical to address the problem at once, prioritizing it can lead to a safer and more enjoyable driving experience.

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2001 Jeep Wrangler Cruise Control Issues & Repair Costs