2001 Mitsubishi Montero Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2001 Mitsubishi Montero and How to Fix Them

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Reviewed by
Devin Cabugcal
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 2001 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 2001 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 steps to diagnose the cruise control issue in a 2001 Mitsubishi Montero?

When diagnosing a cruise control issue in a 2001 Mitsubishi Montero, it's crucial to follow a methodical diagnostic approach that prioritizes simpler checks before delving into more complex components. Begin by inspecting the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, assess the cruise control switch on the steering wheel; if this switch is faulty, it may prevent the cruise control from engaging properly. After these initial checks, examine the vacuum lines for any leaks or damage, as these can significantly affect the system's performance. If the problem persists, test the cruise control module to ensure it is functioning correctly and sending the appropriate signals. Utilizing a diagnostic scanner to check for error codes can also provide valuable insights into any underlying issues. Lastly, inspect the speed sensor, as a malfunctioning sensor can impede the cruise control's ability to maintain a consistent speed. By systematically addressing these components, you can effectively troubleshoot and resolve cruise control issues in your Montero.

What are the common problems that could cause the cruise control to stop working in a 2001 Mitsubishi Montero?

When dealing with a malfunctioning cruise control system in a 2001 Mitsubishi Montero, it's crucial to identify the common problems that may be at play. One frequent culprit is a faulty cruise control switch, which can hinder the system from engaging properly. Additionally, a blown fuse can disrupt the electrical flow necessary for the cruise control to function, making it a simple yet often overlooked issue. Vacuum leaks are another significant factor, as they can interfere with the system's operation by affecting the pressure needed for engagement. Furthermore, a defective speed sensor can lead to erratic behavior or complete disengagement of the cruise control, while issues with the brake light switch can prevent activation altogether. Lastly, a malfunctioning throttle cable can impede the system's ability to maintain speed effectively. By systematically checking these components, DIYers can accurately diagnose and resolve the cruise control issues in their Montero, restoring functionality and enhancing their driving experience.

How urgent is it to address the non-functioning cruise control in a 2001 Mitsubishi Montero?

Addressing the non-functioning cruise control in a 2001 Mitsubishi Montero is of utmost urgency due to the significant safety risks it poses. A malfunctioning system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which can result in dangerous driving conditions and increase the likelihood of accidents. Additionally, the convenience of cruise control is particularly valuable during long drives, as it allows for a more relaxed driving experience by maintaining a steady speed. When this feature fails, it not only detracts from driving comfort but can also lead to driver fatigue. Furthermore, neglecting the issue may result in more severe damage to the vehicle's components, leading to costly repairs that could have been avoided with timely intervention. Therefore, it is crucial for owners to prioritize the repair of their cruise control system to ensure both safety and the longevity of their vehicle.

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