2008 Isuzu I-370 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2008 Isuzu i-370

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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 2008 Isuzu i-370 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 Isuzu i-370 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 2008 Isuzu i-370?

To diagnose the non-functioning cruise control in your 2008 Isuzu i-370, begin with the simplest solutions before progressing to more intricate checks. Start by inspecting the fuse associated with the cruise control system, as a blown fuse is a common and easily fixable issue. Next, examine the cruise control switch to ensure it is operational; a malfunctioning switch can prevent the system from engaging. Following this, check the brake pedal switch, which is crucial for disengaging the cruise control when brakes are applied; if this switch is faulty, it can disable the entire system. Additionally, test the vehicle speed sensor, as it is vital for the cruise control's functionality; a defective sensor can lead to significant issues. If these components appear to be functioning correctly, utilize a diagnostic scanner to check for any error codes that may indicate underlying problems. Finally, inspect the wiring and connections related to the cruise control system, as loose or damaged wiring can disrupt its operation. By following this structured approach, you can effectively diagnose and potentially resolve the cruise control issues in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2008 Isuzu i-370?

When troubleshooting the cruise control system in a 2008 Isuzu i-370, it's essential to understand the common problems that may lead to its failure. One of the primary culprits could be a faulty cruise control switch, which may prevent the system from engaging or disengaging as intended. Additionally, a blown fuse can disrupt the electrical flow necessary for the cruise control to function properly. Another critical component is the speed sensor; if it malfunctions, the system may struggle to maintain a consistent speed. Vacuum leaks can also significantly impact performance, as they can interfere with the system's ability to operate effectively. Furthermore, issues with the brake light switch can cause the cruise control to disengage unexpectedly, while a malfunctioning throttle cable can hinder the system's ability to adjust speed accurately. By systematically checking these components, DIY enthusiasts can effectively diagnose and resolve cruise control issues in their Isuzu i-370.

How urgent is it to address the malfunctioning cruise control in a 2008 Isuzu i-370?

When it comes to the malfunctioning cruise control in a 2008 Isuzu i-370, the urgency of addressing the problem cannot be overstated. A faulty cruise control system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents on the road. Moreover, delaying repairs can exacerbate the issue, potentially leading to more extensive damage to the vehicle and higher repair costs. Ignoring the symptoms not only compromises your safety but can also result in decreased fuel efficiency, further straining your vehicle's performance. Therefore, it is crucial to have the cruise control system inspected and repaired by a qualified mechanic as soon as possible. Taking prompt action not only ensures your safety but also helps maintain the overall functionality and reliability of your vehicle, allowing you to drive with confidence.

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2008 Isuzu i-370 Cruise Control Issues & Repairs | RepairPal