2000 Saturn LS2 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2000 Saturn LS2 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 2000 Saturn LS2 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 LS2 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 steps to diagnose the cruise control issue in a 2000 Saturn LS2?

When diagnosing a cruise control issue in a 2000 Saturn LS2, it's crucial to follow a structured diagnostic approach that prioritizes simpler checks before delving into more complex solutions. Begin by inspecting the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, assess the functionality of the cruise control buttons on the steering wheel, ensuring they are not stuck or damaged, which could hinder engagement. After that, examine the vacuum lines for any signs of leaks or damage, as these are essential for the cruise control system to function properly. Additionally, check the brake pedal switch, since a faulty switch can prevent the cruise control from activating. Utilizing a diagnostic scanner to look for error codes can also provide insights into potential issues. Lastly, confirm that the speed sensor is working correctly, as it plays a vital role in maintaining the vehicle's speed when cruise control is engaged. By systematically addressing these areas, you can effectively diagnose and troubleshoot cruise control problems in your Saturn LS2.

What are the common problems that could cause the cruise control to stop working in a 2000 Saturn LS2?

When diagnosing cruise control issues in a 2000 Saturn LS2, it's essential to consider several common problems that could be at play. Start by checking the fuses, as a blown fuse can disrupt the power supply to the cruise control system, making it inoperable. Next, inspect the brake pedal position sensor; if this sensor is malfunctioning, it can inadvertently signal that the brakes are engaged, disabling the cruise control. Additionally, examine the throttle body for any malfunctions, as issues here can prevent the system from maintaining speed. The PRNDL or shifter position switch is another critical component; if it’s faulty, it may not communicate the correct gear position, affecting cruise control functionality. Don’t overlook the brake light switch either; a defective switch can send incorrect signals that disable the cruise control. Lastly, if the check engine light is illuminated or there are other engine-related issues, these could also interfere with the cruise control system. By systematically checking these components, you can identify and potentially resolve the issue without needing professional assistance.

How urgent is it to repair the non-functioning cruise control in a 2000 Saturn LS2 to ensure safety and prevent further damage?

Repairing the non-functioning cruise control in your 2000 Saturn LS2 is not just a matter of convenience; it is a critical safety concern that should be addressed promptly. A malfunctioning cruise control system can distract drivers, leading to increased fatigue during long trips and heightening the risk of accidents. Moreover, the underlying issues causing the cruise control failure—such as problems with the throttle actuator, brake switch, or speed sensor—can also affect other vital systems in your vehicle. Ignoring these symptoms may result in more severe damage, potentially compromising the overall functionality and safety of your car. Therefore, it is essential to prioritize the repair of your cruise control system to ensure a safe driving experience and to prevent further complications that could arise from neglecting this important aspect of your vehicle's performance.

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