Isuzu Amigo Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Isuzu Amigo and How to Fix Them

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Reviewed by
Andrew Hajjar
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 Amigo 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 Amigo 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.

If the cruise control refuses to turn on at all, the actuator could be at fault. Likewise, if the cruise control stays on but does not maintain a consistent speed, the problem could be a bad actuator. In extreme cases, a malfunctioning actuator could cause the throttle to stick and prevent the vehicle from slowing down. These symptoms may point to a bad actuator. They may also point to other problems with the cruise control and related systems.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

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 Amigo

When troubleshooting cruise control issues in your Isuzu Amigo, 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 blown fuses associated with the cruise control system, as this is a common and easily fixable issue. Next, inspect the brake pedal and throttle body, as any malfunction in these components can disrupt the cruise control's functionality. Utilizing a diagnostic scanner can help identify specific error codes that may indicate underlying problems, allowing for a more targeted approach to repairs. Additionally, verify the operation of the speed sensor, as a faulty sensor can prevent the cruise control from engaging properly. Pay attention to the brake switch adjustment, ensuring there is no excessive clearance that could cause intermittent disconnection of the cruise control. If your vehicle has a manual transmission, don't overlook the clutch pedal switch, which can also affect cruise control performance. Lastly, consider any recent maintenance work that may have inadvertently impacted the cruise control system, and be vigilant for other potential issues such as a faulty brake light or check engine light. By following this structured approach, you can effectively diagnose and resolve cruise control issues in your Isuzu Amigo, enhancing your DIY repair experience.

What Are the Common Causes of Cruise Control Malfunction in an Isuzu Amigo?

When experiencing cruise control malfunction in an Isuzu Amigo, it's essential to consider several common problems that could be at play. A blown fuse is often the first culprit to check, as it can easily disrupt the electrical flow necessary for the cruise control system to function. Additionally, the brake pedal switch plays a critical role; if it's defective, the system may not engage properly, so ensuring this switch is operational is vital. Another area to inspect is the throttle control system, as any issues here can directly affect cruise control performance. Furthermore, the Anti-lock Braking System (ABS) can sometimes interfere with cruise control, so checking for faults in this system is advisable. Lastly, in older models, a broken vacuum line can lead to significant issues, making it important to inspect these lines for any damage. By systematically addressing these potential problems, DIYers can effectively troubleshoot and restore the cruise control functionality in their Isuzu Amigo.

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

When the cruise control in your Isuzu Amigo fails to operate, it’s crucial to act promptly, as neglecting the issue can lead to safety risks and potentially more significant vehicle problems. Start by checking the fuse associated with the cruise control system; a blown fuse can disrupt power to essential components like the cruise control switch and the vehicle speed sensor (VSS). If the fuse is intact, inspect the brake pedal switch, as a malfunction here can prevent the cruise control from engaging. Additionally, examine the throttle control system and the anti-lock braking system (ABS) for any irregularities, as these can also interfere with cruise control functionality. In older models, a broken vacuum line may be the culprit, while a faulty vehicle speed sensor can hinder the system's ability to maintain speed accurately. Lastly, ensure that safety switches on the clutch, brake, or neutral are functioning correctly, as these are designed to prevent unintended acceleration. By addressing these common issues promptly, you can restore your cruise control system and ensure a safer driving experience.

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