2001 Saturn SC1 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2001 Saturn SC1 and How to Fix Them

Find Repair Location
Reviewed by
Devin Cabugcal
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 2001 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 2001 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 2001 Saturn SC1?

To effectively diagnose the non-functioning cruise control in your 2001 Saturn SC1, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the fuses associated with the cruise control system, as a blown fuse can often be the simplest explanation for the malfunction. Next, examine the brake pedal and throttle body, since any issues here can directly impact the cruise control's operation. Once these initial checks are complete, engage the cruise control to see if it disengages under normal conditions, such as pressing the brake pedal or toggling the cruise control switch. If the system still fails to operate, inspect the vacuum actuator and its hoses for any signs of damage or disconnection, as these components are crucial for the system's functionality. Additionally, check the cable that connects the actuator to the cruise control system for any wear or damage. If these steps do not resolve the issue, it may be time to consult a mechanic, who can perform a more thorough diagnostic using specialized tools like a code reader or scanner. By following this structured diagnostic approach, you can efficiently identify the root cause of the cruise control problem and take appropriate action.

What are the common problems that could cause the cruise control to stop working in a 2001 Saturn SC1?

When troubleshooting the cruise control system in a 2001 Saturn SC1, it's essential to consider several common issues that may be at play. One frequent culprit is the vacuum actuator, which can fail due to damaged vacuum hoses, leading to a loss of functionality. Additionally, a broken cable connecting the actuator to the throttle can prevent the system from engaging properly. Electrical issues are also significant; blown fuses, defective switches, or malfunctioning sensors can disrupt the cruise control's operation. Pay attention to the brake pedal position sensor, as problems here can inadvertently disable the cruise control. Furthermore, the throttle body and the PRNDL/shifter position switch are critical components that, if faulty, can contribute to the system's failure. Lastly, inspect the cruise control switch itself, as a defect in this component can directly impact performance. By systematically checking these areas, DIYers can effectively diagnose and potentially resolve cruise control issues in their Saturn SC1.

How urgent is it to address the non-functioning cruise control in a 2001 Saturn SC1?

When considering the urgency of fixing a non-functioning cruise control in a 2001 Saturn SC1, it's essential to recognize that while it may not present an immediate safety hazard, neglecting this issue can lead to more significant problems. A malfunctioning cruise control can detract from the driving experience, especially on long trips where maintaining a steady speed is beneficial for comfort and fuel efficiency. Furthermore, if left unaddressed, the underlying issues causing the cruise control failure could escalate, potentially resulting in more extensive and costly repairs. Therefore, it is advisable for DIY enthusiasts to inspect the cruise control system promptly. This proactive approach not only enhances the vehicle's performance but also helps prevent further complications, ensuring that your Saturn SC1 remains safe and reliable on the road.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

Fixing 2001 Saturn SC1 Cruise Control Issues | RepairPal