Jaguar Vanden Plas Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Jaguar Vanden Plas 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Jaguar Vanden Plas 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 Jaguar Vanden Plas 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.

Troubleshooting Cruise Control Issues in a Jaguar Vanden Plas

When troubleshooting cruise control issues in your Jaguar Vanden Plas, start by checking the most accessible components. Begin with the brake pedal switch, as a malfunctioning switch can prevent the cruise control from engaging. Ensure that the brake lights are functioning properly, as a blown bulb can disrupt the cruise control circuit. Next, inspect the fuses related to the cruise control system; replacing a blown fuse is a straightforward fix that can resolve the issue. If these initial checks do not yield results, examine the throttle actuation system, as problems here can directly affect cruise control functionality. Additionally, assess the control module and any associated sensors for faults, as these components are critical for proper operation. By following this diagnostic approach, you can effectively identify and resolve the underlying issues affecting your cruise control system, ensuring a smoother driving experience.

What Are the Common Problems Causing Cruise Control Issues in a Jaguar Vanden Plas?

When dealing with cruise control issues in a Jaguar Vanden Plas, it's crucial to understand the common problems that may arise. One of the primary culprits is a failed control module, which can disrupt the entire cruise control system's functionality. Additionally, sensor or switch malfunctions can lead to erratic behavior or complete failure of the cruise control feature. Another significant factor to consider is throttle actuation problems, which can prevent the system from maintaining the desired speed. For those looking to troubleshoot these issues, it's advisable to start by inspecting the control module for any signs of failure, followed by checking the relevant sensors and switches for proper operation. Lastly, examining the throttle actuation mechanism can help identify any underlying problems that may be affecting the cruise control system. By systematically addressing these common issues, DIYers can effectively restore the cruise control functionality in their Jaguar Vanden Plas.

Why is the Cruise Control Not Working in a Jaguar Vanden Plas?

When the cruise control in your Jaguar Vanden Plas fails to operate, it’s crucial to address the issue promptly to ensure both your safety and the vehicle's performance. Common causes of malfunction include problems with the control module, sensors, or switches, which can disrupt the system's functionality. Additionally, throttle actuation issues may prevent the cruise control from engaging properly. It's also important to check the cruise switch on the brake pedal or clutch, as a malfunction here can render the system inoperative. Furthermore, if the ABS sensors or the vehicle speed sensor are not functioning correctly, they can significantly impact the cruise control's performance. Ignoring these symptoms not only compromises your driving experience but can also lead to more severe mechanical issues down the line. Therefore, if you notice any irregularities with your cruise control, it’s advisable to investigate and resolve the problem as soon as possible to maintain the safety and reliability of your vehicle.

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