1993 Saturn SW2 Cruise Control Isn't Working

Diagnosing Common Issues with the Cruise Control System in Your 1993 Saturn SW2 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 1993 Saturn SW2 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 1993 Saturn SW2 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.

What are the steps to diagnose the non-functioning cruise control in a 1993 Saturn SW2?

To effectively diagnose the non-functioning cruise control in your 1993 Saturn SW2, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the fuse associated with the cruise control system, as a blown fuse is a common and easily rectifiable issue. Next, evaluate the cruise control switch to ensure it is operational, since a malfunctioning switch can prevent engagement. Following this, check the brake pedal switch, which is crucial for safety, as it disengages the cruise control when the brakes are applied; any failure here can disrupt the system's functionality. After confirming these components, turn your attention to the vehicle speed sensor, which relays speed information necessary for cruise control operation. If all these elements are functioning correctly, proceed to test the cruise control module itself, as it is the control center for the system. Lastly, inspect for any vacuum leaks, as these can significantly impair the cruise control's performance. By following this structured diagnostic approach, you can efficiently identify and resolve the issue with your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 1993 Saturn SW2?

When dealing with a malfunctioning cruise control system in a 1993 Saturn SW2, it's essential to understand the common problems that could be at play. One of the first things to check is the fuse associated with the cruise control; a blown fuse can easily disrupt the system's functionality. If the fuse is intact, the next step is to inspect the cruise control switch itself, as a faulty switch may prevent the system from engaging or disengaging as intended. Additionally, vacuum leaks can significantly impact the operation of the cruise control, so examining the vacuum lines for any signs of wear or damage is crucial. Another critical component to consider is the speed sensor; if it is malfunctioning, the cruise control may struggle to maintain the desired speed. Lastly, issues with the brake light switch can also interfere with the cruise control's operation, as this switch is responsible for disengaging the system when the brakes are applied. By systematically checking these components, DIYers can effectively diagnose and potentially resolve the cruise control issues in their Saturn SW2.

How urgent is it to repair the non-functioning cruise control in a 1993 Saturn SW2?

Repairing the non-functioning cruise control in a 1993 Saturn SW2 should be approached with a sense of urgency, primarily due to the safety implications it carries. A malfunctioning cruise control system can lead to driver fatigue, especially on long journeys, increasing the risk of accidents. Additionally, the convenience that cruise control offers during highway driving cannot be overlooked; it enhances comfort and reduces the physical strain of maintaining speed over extended periods. Furthermore, from a financial perspective, keeping all vehicle features operational can significantly influence resale value. A fully functional cruise control system is often viewed as a desirable feature by potential buyers. Lastly, while the immediate drivability of the vehicle may not be compromised, neglecting the repair could lead to more complex mechanical issues in the future. Therefore, addressing the cruise control malfunction promptly is advisable to ensure safety, enhance driving experience, and maintain the vehicle's overall integrity.

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