2008 Mitsubishi Galant Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2008 Mitsubishi Galant and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2008 Mitsubishi Galant 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 2008 Mitsubishi Galant 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.

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.

What are the steps to diagnose the cruise control issue in a 2008 Mitsubishi Galant?

When diagnosing a cruise control issue in a 2008 Mitsubishi Galant, it's crucial to follow a structured diagnostic approach that prioritizes simpler fixes before delving into more complex components. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a common culprit that can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, since malfunctioning buttons can prevent the system from engaging. After that, examine the speed sensors, which are essential for maintaining the desired speed; any issues here can significantly affect cruise control performance. Utilizing an OBD-II scanner to check for error codes can also provide critical information about specific problems within the system. Additionally, inspect the vacuum lines for any signs of leaks or damage, as these are integral to the cruise control's operation. Finally, if all previous checks are satisfactory, test the cruise control module itself, as a malfunctioning module could be the underlying issue. By systematically addressing each of these components, you can effectively diagnose and resolve the cruise control issue in your Mitsubishi Galant.

What are the common problems that could cause the cruise control to stop working in a 2008 Mitsubishi Galant?

When troubleshooting the cruise control system in a 2008 Mitsubishi Galant, it's important to consider several common issues that could be at play. A faulty cruise control switch is often the first suspect, as it can prevent the system from engaging properly. Additionally, a blown fuse may disrupt the electrical flow necessary for the cruise control to function, so checking the fuses is a good starting point. The speed sensor also plays a crucial role; if it's defective, the system may struggle to maintain a set speed. Vacuum leaks can further complicate matters, as they can affect the system's ability to operate smoothly. Moreover, issues with the brake light switch can cause the cruise control to disengage unexpectedly, while a malfunctioning throttle cable can hinder the system's performance in maintaining speed. By systematically examining these components, DIYers can effectively diagnose and resolve the cruise control issues in their Galant.

How urgent is it to address the non-functioning cruise control in a 2008 Mitsubishi Galant?

Addressing a non-functioning cruise control in a 2008 Mitsubishi Galant should be considered a priority for any DIY vehicle owner. While it may not seem like an immediate emergency, the implications of ignoring this issue can be significant. A malfunctioning cruise control system not only diminishes the convenience of maintaining a steady speed, which is particularly beneficial during long drives, but it may also signal deeper electronic or mechanical problems within the vehicle. These underlying issues could potentially affect other critical systems, leading to more extensive and costly repairs down the line. Moreover, neglecting to fix the cruise control can compromise overall vehicle safety, as it may distract the driver or lead to erratic speed control. Therefore, it is advisable to conduct a thorough inspection of the cruise control system and, if necessary, consult a qualified mechanic to diagnose and resolve the problem. By taking prompt action, you can ensure the continued safety and performance of your Mitsubishi Galant on the road.

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