2000 Saturn LW2 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2000 Saturn LW2 and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2000 Saturn LW2 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 2000 Saturn LW2 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.

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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 2000 Saturn LW2?

When troubleshooting the non-functional cruise control in a 2000 Saturn LW2, it's crucial to adopt a systematic diagnostic approach. Start by checking the fuse box for any blown fuses related to the cruise control system, as this is a simple fix that can often resolve the issue. Next, visually inspect the cruise control system for any signs of damage or loose connections, which can disrupt functionality. Ensure that the cruise control switch on the steering wheel is operational, as a malfunctioning switch can prevent the system from engaging. Additionally, examine the cruise control module for any visible damage or signs of malfunction. The vehicle speed sensor is another critical component; verify that it is working correctly, as it provides the necessary data for the cruise control to function. Finally, consider scanning the vehicle's onboard computer for any error codes that may indicate specific problems within the cruise control system. By following these steps, you can effectively diagnose and potentially resolve the issues affecting your cruise control, making your DIY repair efforts more successful.

What are the common problems that could cause the cruise control to stop working in a 2000 Saturn LW2?

When addressing the cruise control issues in a 2000 Saturn LW2, it's crucial to understand the common problems that may be at play. A faulty cruise control switch is often the primary culprit, as it can prevent the system from engaging properly. Checking the fuses is also essential, as a blown fuse can completely disable the cruise control functionality. Additionally, vacuum leaks can disrupt the necessary pressure for the system to operate, leading to erratic behavior or failure. The speed sensor plays a vital role in maintaining a constant speed, and if it's defective, the cruise control may not function as intended. Moreover, issues with the brake light switch can interfere with the system's ability to engage, while a malfunctioning throttle cable can further complicate matters. By methodically examining these components, you can pinpoint the specific issue affecting your cruise control and take the necessary steps to fix it.

How urgent is it to repair the non-functioning cruise control in a 2000 Saturn LW2?

Repairing the non-functioning cruise control in a 2000 Saturn LW2 should be considered a priority, albeit not an immediate emergency. The cruise control system plays a crucial role in enhancing driving comfort, particularly during long journeys, by allowing drivers to maintain a steady speed without constant pedal pressure. This feature not only reduces fatigue but also helps prevent unintentional speeding, which can be a significant safety concern on highways. Moreover, the failure of the cruise control may indicate deeper issues within the vehicle's electrical system, such as blown fuses or faulty sensors, which could lead to more severe problems if left unresolved. Additionally, since cruise control is often linked to the brake system, neglecting repairs could compromise overall braking performance, posing further safety risks. Therefore, while it may not be an urgent fix, addressing the malfunctioning cruise control promptly is essential for ensuring both safety and convenience on the road.

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