2009 Volkswagen Eos Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2009 Volkswagen Eos 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 2009 Volkswagen Eos 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 2009 Volkswagen Eos 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 vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

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 2009 Volkswagen Eos?

To effectively diagnose the non-functioning cruise control in your 2009 Volkswagen Eos, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse located in the fuse box; a blown fuse is a straightforward fix that can often resolve the issue. Next, examine the cruise control buttons on the steering wheel for any signs of sticking or damage, as these can hinder functionality. If the buttons appear to be in good condition, proceed to check the speed sensors, as faulty sensors can disrupt the cruise control system's operation. Utilizing an OBD-II scanner to scan for error codes can provide valuable insights into any underlying issues. Additionally, ensure that the brake and clutch switches are functioning properly, as malfunctioning switches can prevent the cruise control from engaging. Finally, inspect the wiring and connections associated with the cruise control system for any damage or corrosion, as these can also contribute to the problem. By following this diagnostic approach, you can efficiently identify and address the root cause of the cruise control malfunction in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2009 Volkswagen Eos?

When troubleshooting cruise control issues in a 2009 Volkswagen Eos, it's essential to consider several common problems that could be at play. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to deactivate when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the cruise control's functionality, as it relies on accurate speed readings to maintain the desired speed. Another potential issue is a blown fuse related to the cruise control system; checking and replacing any blown fuses can often resolve the problem. Furthermore, a malfunctioning throttle actuator may hinder the cruise control's ability to maintain speed effectively, while a faulty cruise control module could also be responsible for the failure. By systematically addressing these common issues, DIY enthusiasts can effectively troubleshoot and potentially resolve cruise control problems in their Volkswagen Eos.

How urgent is it to address the malfunctioning cruise control in a 2009 Volkswagen Eos?

Addressing the malfunctioning cruise control in a 2009 Volkswagen Eos is of utmost urgency due to the potential safety risks and performance issues it presents. A malfunction can lead to unexpected acceleration or deceleration, which not only endangers the driver and passengers but also other road users. Furthermore, a faulty cruise control system can detract from the overall driving experience, making long trips less enjoyable and more stressful. Ignoring these symptoms can also lead to decreased fuel efficiency, as the vehicle may not operate optimally, and could potentially cause damage to other components of the car, leading to more costly repairs down the line. Therefore, it is crucial to address any cruise control issues as soon as they arise to maintain safe and efficient driving conditions.

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