1994 Jaguar XJ6 Cruise Control Isn't Working

Diagnosing Common Issues with the Cruise Control System in Your 1994 Jaguar XJ6 and How to Fix Them

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Reviewed by

Devin Cabugcal

Written by RepairPal Car Genius

Updated January 14, 2025

30% chance it's the

Sensor

25% chance it's the

Control Module

25% chance it's the

Throttle

20% chance it's

Something else

The most common reasons a 1994 Jaguar XJ6 cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.

Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
Control Module: A faulty control module can result in 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 acceleration and poor engine 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.

What are the best Jaguar repair shops?

RepairPal Certified shops can diagnose and repair your 1994 Jaguar XJ6 electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

How much does it cost to fix a 1994 Jaguar XJ6 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.

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.

How urgent is it to address the non-functioning cruise control in a 1994 Jaguar XJ6?

Addressing the non-functioning cruise control in a 1994 Jaguar XJ6 should be considered a priority for any DIY enthusiast, as neglecting this issue can lead to unsafe driving conditions and a less enjoyable driving experience. A malfunctioning cruise control system can distract the driver and may result in difficulty maintaining speed, which is particularly concerning on highways. Common causes of cruise control failure include blown fuses, faulty brake switches, and malfunctioning speed sensors, all of which can be relatively easy and inexpensive to fix. Additionally, older vehicles like the XJ6 may experience issues related to the throttle control system or vacuum lines, which can further complicate the problem. While it may not seem like an emergency, timely repairs are essential to ensure both safety and comfort on the road, making it crucial for DIYers to address these symptoms promptly.

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