Saturn LW2 Cruise Control Isn't Working

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

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Reviewed by
Bo Fader
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 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 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.

Troubleshooting Cruise Control Issues in a Saturn LW2

When troubleshooting cruise control issues in your Saturn LW2, start with the simplest solutions to avoid unnecessary complications. Begin by inspecting the cruise control switch on the steering wheel; ensure it is not stuck or damaged, as this can prevent activation. Next, check for any blown fuses related to the cruise control system, as a blown fuse can lead to intermittent functionality or complete failure. If these initial checks do not resolve the issue, examine the throttle actuation system for any problems that may hinder the cruise control's performance. Additionally, inspect the control module and sensors, as failures in these components are common culprits. Lastly, ensure that the cruise control button is clean and free from debris, as dirt can obstruct its operation. By following this diagnostic approach, you can effectively identify and address the root cause of your cruise control problems, ensuring a smoother driving experience. If these steps do not yield results, consider consulting a professional mechanic for a thorough inspection.

What Could Cause the Cruise Control to Malfunction in a Saturn LW2?

When dealing with a malfunctioning cruise control system in a Saturn LW2, it's essential to understand the common problems that could be causing the issue. One of the first areas to investigate is the control module, as failures here can disrupt the entire system's functionality. Additionally, pay attention to the sensors and switches, as these components are crucial for proper operation. Diagnostic trouble codes (DTCs) such as P0565 and P1585 can provide valuable clues, indicating circuit malfunctions or voltage irregularities that may need addressing. It's also wise to check for blown fuses, as these can easily interrupt the cruise control's power supply. Another critical aspect to examine is the brake pedal sensor; if this sensor is faulty, it may prevent the cruise control from engaging correctly. Lastly, consider the throttle control system and any potential issues with the ABS or vacuum lines, especially in older models, as these can also contribute to cruise control failures. By systematically checking these components, DIYers can effectively diagnose and resolve cruise control malfunctions in their Saturn LW2.

Why is the Cruise Control Not Working in a Saturn LW2?

When the cruise control in your Saturn LW2 fails to operate, it’s crucial to address the issue without delay. Ignoring symptoms such as a non-responsive system can lead to unsafe driving conditions, especially on long trips where maintaining speed is essential. Common culprits include a blown fuse, a malfunctioning brake pedal switch, or problems with the throttle control system. If the brake pedal switch is defective, the vehicle may incorrectly assume that the brakes are engaged, preventing the cruise control from activating. Additionally, issues with the ABS or a faulty speed sensor can also disrupt the system's functionality. To ensure your safety and the proper functioning of your vehicle, it’s advisable to conduct a thorough inspection of these components. This includes checking fuses, assessing the brake and throttle systems, and using diagnostic tools to identify any underlying problems. By addressing these issues promptly, you can avoid potential hazards and ensure a smoother driving experience.

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