2006 Isuzu I-350 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 Isuzu i-350 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 2006 Isuzu i-350 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 2006 Isuzu i-350 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 initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2006 Isuzu i-350?

When troubleshooting the non-functioning cruise control in a 2006 Isuzu i-350, it's essential to start with a systematic diagnostic approach. Begin by inspecting the fuses associated with the cruise control system, as a blown fuse can often be the simplest explanation for the malfunction. Next, evaluate the condition of the brake pedal and throttle body, as these components play a crucial role in the cruise control's operation. It's also advisable to check the brake lights; have someone press the brake pedal while you observe the lights to ensure they are functioning correctly. If the brake lights are not working, this could prevent the cruise control from engaging. By following these initial steps, you can effectively narrow down the potential causes of the issue and determine whether further investigation is necessary.

What are the common problems that could cause the cruise control to stop working in a 2006 Isuzu i-350?

When dealing with a malfunctioning cruise control system in a 2006 Isuzu i-350, it's crucial to identify the common problems that may be at play. One of the first areas to check is the cruise control switch, as a faulty switch can prevent the system from engaging. Additionally, a blown fuse can disrupt the electrical flow necessary for the cruise control to function, so inspecting the fuses is a good starting point. Another potential issue is vacuum leaks, which can interfere with the system's operation, making it essential to examine the vacuum lines for any signs of wear or damage. The speed sensor also plays a vital role; if it's defective, it can lead to erratic behavior or complete disengagement of the cruise control. Furthermore, the brake light switch should be inspected, as any malfunction here can inhibit the cruise control from activating. Lastly, issues with the throttle cable can affect the system's ability to maintain speed, so ensuring that the throttle cable is functioning correctly is important. By systematically checking these components, DIYers can effectively diagnose and resolve the cruise control issues in their Isuzu i-350.

How urgent is it to address the non-functioning cruise control in a 2006 Isuzu i-350?

Addressing the non-functioning cruise control in a 2006 Isuzu i-350 is crucial for maintaining a safe and comfortable driving experience. While it may not present an immediate safety hazard like malfunctioning brakes or engine issues, neglecting this problem can lead to increased driver fatigue and inconvenience during long trips. The cruise control system is designed to help maintain a steady speed, allowing drivers to relax their foot and focus on the road, which is especially beneficial on highways. Furthermore, a malfunctioning system can result in inconsistent speed control, potentially leading to higher fuel consumption and increased costs over time. Therefore, it is advisable to have the cruise control system inspected and repaired by a qualified mechanic as soon as possible to ensure optimal vehicle performance and to prevent any further complications. Taking prompt action not only enhances driving comfort but also contributes to overall vehicle safety.

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