2002 Mitsubishi Montero Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2002 Mitsubishi Montero and How to Fix Them

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Reviewed by
Aisha
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 2002 Mitsubishi Montero 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 2002 Mitsubishi Montero 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.

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 initial steps to diagnose the non-functioning cruise control in a 2002 Mitsubishi Montero?

To effectively diagnose the non-functioning cruise control in your 2002 Mitsubishi Montero, begin with the simplest solutions. Start by checking the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can prevent the system from engaging. Following this, verify the speed sensor's functionality, since a malfunction here can disrupt the cruise control operation. Additionally, examine the vacuum lines connected to the cruise control actuator for any leaks or damage, as these can significantly impact performance. Finally, if the problem persists, use a diagnostic scanner to check for error codes that may provide further insight into the issue. By following this structured approach, you can efficiently identify and address the root cause of your cruise control problems.

What are the common problems that could cause the cruise control to stop working in a 2002 Mitsubishi Montero?

When dealing with cruise control issues in a 2002 Mitsubishi Montero, it's essential to understand the common problems that may arise. One frequent culprit is a faulty cruise control switch, which can hinder the system's ability to engage or disengage properly. Additionally, a blown fuse can disrupt the entire cruise control functionality, making it crucial to check the fuses associated with the system. Another potential issue is vacuum leaks, which can prevent the cruise control from maintaining speed effectively. A defective speed sensor may also be at fault, as it is responsible for accurately detecting the vehicle's speed; if it malfunctions, the cruise control may not work as intended. Furthermore, problems with the brake light switch can interfere with the system, as it is designed to disengage when the brakes are applied. Lastly, a malfunctioning throttle cable can impact the cruise control's ability to adjust the throttle position, leading to further complications. By identifying and addressing these common issues, DIYers can troubleshoot and potentially resolve cruise control problems in their Montero, restoring functionality and enhancing their driving experience.

How urgent is it to repair the non-functioning cruise control in a 2002 Mitsubishi Montero?

When it comes to the urgency of repairing the non-functioning cruise control in a 2002 Mitsubishi Montero, several critical factors come into play. First and foremost, safety is paramount; a malfunctioning cruise control system can lead to erratic vehicle behavior, such as unexpected acceleration or deceleration, which poses significant risks on the road. Additionally, the comfort and convenience that cruise control offers during long drives cannot be overlooked. Without it, drivers may experience increased fatigue and discomfort, detracting from the overall driving experience. Furthermore, addressing this issue promptly can help preserve the vehicle's resale value. Prospective buyers often view a malfunctioning cruise control system as a red flag, which could negatively impact their perception of the vehicle's overall condition. Therefore, while the urgency may vary based on individual circumstances, it is generally advisable to prioritize the repair of the cruise control system to ensure safety, enhance driving comfort, and maintain the vehicle's value.

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