Porsche 718 Spyder Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Porsche 718 Spyder 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Porsche 718 Spyder 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 Porsche 718 Spyder 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.

Troubleshooting Cruise Control Issues in a Porsche 718 Spyder

When troubleshooting cruise control issues in a Porsche 718 Spyder, it's essential to adopt a systematic diagnostic approach that begins with the simplest potential problems before delving into more complex ones. Start by checking for any software glitches, as these can often be resolved with a simple reset or software update. Next, inspect the clutch pedal switch, which is crucial for cruise control engagement; a malfunction here can easily disrupt the system. If these initial checks do not resolve the issue, examine the electrical components, including fuses and brake lights, as faulty connections can lead to cruise control malfunctions. Additionally, assess the condition of the control module, sensors, and throttle, as these components are vital for proper operation. Finally, if all else fails, inspect the communications cable for any damage that could be affecting the system. By following this methodical approach, you can effectively identify and address the root cause of cruise control issues, ensuring a seamless driving experience in your Porsche 718 Spyder.

What Could Cause Cruise Control Malfunctions in a Porsche 718 Spyder?

When dealing with cruise control malfunctions in a Porsche 718 Spyder, it's crucial to understand the common problems that may arise. One frequent issue is a blown fuse, which can disrupt the electrical circuit necessary for cruise control operation. Additionally, a defective brake pedal switch can prevent the system from engaging properly, as it signals when the brakes are applied. Another potential culprit is the throttle control system; if there are any issues here, they can directly affect the cruise control's functionality. Furthermore, problems with the Anti-lock Braking System (ABS) can also lead to cruise control failures, as these systems are interconnected. Lastly, while less common in modern vehicles, a broken vacuum line can still be a factor in older models. By identifying and addressing these issues, you can effectively troubleshoot and restore the cruise control system in your Porsche 718 Spyder, ensuring a smoother driving experience. Regular maintenance and prompt attention to these components will help keep your vehicle's cruise control functioning optimally.

Why is the Cruise Control Not Working in a Porsche 718 Spyder?

When the cruise control in your Porsche 718 Spyder fails, it’s crucial to address the issue promptly, as neglecting it can lead to safety risks and further complications. A malfunctioning cruise control system can result from various factors, including a failed control module, sensor issues, or throttle actuation problems. Ignoring these symptoms may not only compromise your driving experience but could also lead to more significant mechanical failures down the line. For instance, a damaged speed sensor can prevent the cruise control from engaging, posing a risk of sudden speed changes that could endanger you and others on the road. Additionally, software glitches, such as those related to the auto-stop function, can exacerbate the problem if not resolved. Therefore, it’s essential to diagnose the specific cause of the malfunction and take action, whether that means troubleshooting the system yourself or seeking professional assistance, to ensure your vehicle remains safe and reliable.

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Porsche 718 Spyder Cruise Control Issues & Repair Guide