1997 Isuzu Rodeo Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 1997 Isuzu Rodeo

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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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 1997 Isuzu Rodeo 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 1997 Isuzu Rodeo 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.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 1997 Isuzu Rodeo?

When faced with a non-functional cruise control in a 1997 Isuzu Rodeo, it's crucial to adopt a systematic diagnostic approach. Begin by checking the fuse associated with the cruise control system, as a blown fuse is a common and easily fixable issue. Next, inspect the wiring for any signs of damage or loose connections, as faulty wiring can disrupt the system's operation. Testing the cruise control switch is also essential; if it’s malfunctioning, it may prevent the system from engaging. Given the age of the vehicle, don’t overlook the vacuum lines, which can develop leaks or damage that affect performance. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into specific problems. Finally, examine the cruise control module for any signs of failure, as this component may need replacement if it’s found to be defective. By following these steps, you can effectively troubleshoot and potentially resolve the cruise control issues in your Isuzu Rodeo.

What are the common problems that could cause the cruise control to stop working in a 1997 Isuzu Rodeo?

When diagnosing cruise control issues in a 1997 Isuzu Rodeo, it's essential to consider several common problems that could be at play. One of the primary culprits is the control module, which can fail along with associated sensors or switches, leading to a complete loss of functionality. Additionally, throttle actuation problems may arise, preventing the system from maintaining speed. Inspecting the vacuum actuator and its hoses is crucial, as damage or leaks can disrupt the system's operation. The cable connecting the actuator to other components should also be examined for any signs of wear or disconnection. Furthermore, a blown fuse or a malfunctioning brake pedal switch can frequently cause cruise control to fail, as these components are integral to the system's safety features. It's also important to ensure that the brake and clutch pedal switches are properly adjusted and functioning, as any discrepancies can hinder cruise control engagement. Lastly, electrical issues such as frayed wires or loose connections should not be overlooked, as they can lead to intermittent or complete failure of the cruise control system. By systematically checking these areas, DIYers can effectively troubleshoot and potentially restore the cruise control functionality in their Isuzu Rodeo.

How urgent is it to address the non-functioning cruise control in a 1997 Isuzu Rodeo?

Addressing the non-functioning cruise control in your 1997 Isuzu Rodeo is more urgent than it may initially seem. A malfunctioning cruise control system can pose significant safety risks, such as unexpected acceleration or deceleration, which can lead to dangerous driving situations, particularly on highways where maintaining a steady speed is crucial. Additionally, without cruise control, drivers may experience increased fatigue during long trips, as they must constantly monitor and adjust their speed, leading to distractions that could compromise road safety. Furthermore, neglecting this issue can negatively impact the resale value of your vehicle; potential buyers often view non-functional features as red flags, which could deter them from making a purchase. To prevent further complications and ensure the longevity of your vehicle, it is advisable to have a professional mechanic diagnose the problem promptly. By addressing the cruise control issue in a timely manner, you not only enhance your driving experience but also safeguard your vehicle's overall performance and value.

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