Isuzu Hombre Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Isuzu Hombre 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Isuzu Hombre 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 Isuzu Hombre 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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

Troubleshooting Cruise Control Issues in an Isuzu Hombre

When troubleshooting cruise control issues in your Isuzu Hombre, it's essential to adopt a systematic diagnostic approach that begins with the simplest solutions before progressing to more complex assessments. Start by checking for any blown fuses that may disrupt the cruise control system's functionality. Next, inspect the brake pedal and throttle body, as their condition can significantly impact operation. Utilizing a diagnostic scanner can help you retrieve trouble codes that provide insight into specific issues affecting the cruise control. Additionally, verify the speed sensor's performance, as a malfunctioning sensor can lead to cruise control failure. Pay close attention to the cruise control cancel switch and its wiring, looking for signs of damage or corrosion. If necessary, replace or repair any faulty components based on your findings. Ensure that the clutch pedal is properly adjusted and in contact with the switch when engaging cruise control, as improper adjustment can prevent activation. Lastly, consider any recent maintenance that may have inadvertently affected the cruise control system, and remember that engaging the brake or clutch will disable cruise control, so confirm that all related switches are functioning correctly. By following this structured approach, you can effectively diagnose and resolve cruise control issues in your Isuzu Hombre.

What Could Cause the Cruise Control to Malfunction in an Isuzu Hombre?

When dealing with cruise control malfunctions in an Isuzu Hombre, it's essential to understand the common problems that may arise. One frequent culprit is a faulty cruise control cancel switch, which can disrupt the system's operation by preventing it from engaging or disengaging properly. Additionally, damaged wiring or connectors can lead to intermittent or complete failure of the cruise control system, making it crucial to inspect these components for any signs of wear or damage. The cruise control module itself may also malfunction, leading to erratic behavior or a total lack of response. Furthermore, issues with the cruise control button, such as dirt accumulation or physical damage, can hinder its functionality, preventing the system from activating. A blown fuse is another potential issue that can cut off power to the cruise control system, so checking the fuses is a vital step in troubleshooting. Lastly, problems with the brake pedal, such as misalignment or sensor failure, can inadvertently deactivate the cruise control, as the system relies on the brake pedal's position to function correctly. By systematically diagnosing these areas, DIYers can effectively identify and resolve the underlying issues affecting their Isuzu Hombre's cruise control system.

Why is the Cruise Control Not Working in an Isuzu Hombre?

When the cruise control in your Isuzu Hombre fails, it’s crucial to address the issue without delay. Ignoring symptoms such as a blown fuse or a malfunctioning brake pedal switch can not only compromise your driving experience but also pose significant safety risks. For instance, if the cruise control system is linked to the throttle control or ABS, any underlying problems could lead to erratic vehicle behavior, increasing the likelihood of accidents. Additionally, a check engine light may indicate engine-related issues that could escalate if left unresolved. To ensure your safety and the longevity of your vehicle, it’s advisable to conduct a thorough inspection of the cruise control system, checking for blown fuses, assessing the brake pedal and throttle body, and utilizing a scanner to diagnose any hidden problems. By taking these steps, you can effectively troubleshoot the issue and restore your cruise control functionality, ensuring a safer driving experience.

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