2002 Saturn SC1 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2002 Saturn SC1 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 2002 Saturn SC1 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 2002 Saturn SC1 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.

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 non-functioning cruise control in a 2002 Saturn SC1?

To effectively diagnose the non-functioning cruise control in your 2002 Saturn SC1, start by consulting your vehicle's manual to locate the fuse box in the engine bay. This is a crucial first step, as a blown fuse can often be the simplest explanation for cruise control failure. Once you have located the fuse box, ensure the car is cold, then carefully remove the fuse dedicated to the cruise control system. Inspect the fuse for any signs of damage or a break in the filament; if it appears intact, the issue may lie elsewhere. In this case, you will need to delve deeper into the system by examining other components such as the Control Module, Sensor, and Throttle. By following this structured diagnostic approach, you can efficiently identify the root cause of the problem and determine the necessary repairs, making your DIY troubleshooting both effective and rewarding.

What are the common problems that could cause the cruise control to stop working in a 2002 Saturn SC1?

When troubleshooting cruise control issues in a 2002 Saturn SC1, it's essential to consider several common problems that could be affecting the system's performance. One of the primary culprits is a faulty cruise control switch, which can hinder the system's ability to engage or disengage properly. Additionally, a blown fuse within the cruise control circuit can disrupt functionality, rendering the system inoperative. Another potential issue is vacuum leaks, which can prevent the cruise control from maintaining speed effectively. Furthermore, a defective speed sensor may fail to provide accurate speed readings, leading to operational issues. Lastly, problems with the brake light switch can interfere with the cruise control's disengagement process when the brakes are applied. By systematically checking these components, DIY enthusiasts can effectively diagnose and resolve cruise control problems in their Saturn SC1.

How urgent is it to repair the non-functioning cruise control in a 2002 Saturn SC1?

When evaluating the urgency of repairing the non-functioning cruise control in a 2002 Saturn SC1, it's essential to recognize that while this feature enhances driving comfort, its failure does not pose an immediate safety risk. The cruise control system is designed to maintain a steady speed, which can significantly reduce driver fatigue during long trips. However, if you find yourself frequently relying on this feature, the inconvenience of its absence may warrant prompt attention. Ignoring the issue could lead to a gradual decline in driving comfort, particularly on extended highway journeys where cruise control is most beneficial. While the repair may not be critical for the vehicle's overall functionality, addressing it sooner rather than later can prevent further complications and ensure a more enjoyable driving experience. Ultimately, the decision to repair should align with your personal driving habits and how much you value the convenience that cruise control provides.

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2002 Saturn SC1 Cruise Control Issues & Repair Costs