1998 Suzuki X-90 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 1998 Suzuki X-90 and How to Fix Them

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Reviewed by
Aisha
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 1998 Suzuki X-90 cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
  • Control Module: A faulty control module can result in 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 acceleration and poor engine 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 1998 Suzuki X-90 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.

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 steps to diagnose the non-functioning cruise control in a 1998 Suzuki X-90?

To effectively diagnose the non-functioning cruise control in your 1998 Suzuki X-90, start with the simplest checks before moving on to more complex components. Begin by inspecting the cruise control fuse; a blown fuse can easily disrupt the system's functionality, so replacing it with a new one of the same amperage is a quick fix. Next, examine the vacuum lines connected to the cruise control actuator, as any holes or leaks can impair the system's operation. It's also crucial to check for any broken components, particularly the fabric tape that connects the cruise control servo to the accelerator cable, as this can lead to malfunction. Additionally, inspect the control module, sensors, and switches for faults, as these are common culprits in cruise control failures. Finally, pay attention to the dashboard indicator lights; if the cruise control light is illuminated or unresponsive, it may signal a deeper issue that requires further investigation. By following these steps, you can systematically identify and address the problems affecting your cruise control system.

What common issues cause cruise control failure in a 1998 Suzuki X-90?

When diagnosing cruise control failure in a 1998 Suzuki X-90, it's essential to consider several common issues that may be at play. One of the primary culprits is the control module, which can fail and disrupt the entire system's functionality. Additionally, sensor and switch problems, particularly with the throttle position sensor, can prevent the cruise control from engaging properly. Electrical issues, such as faulty wiring harnesses or connectors, can also lead to system malfunctions, making it crucial to inspect these components thoroughly. A blown fuse or a defective brake pedal switch is another frequent cause of cruise control failure, as these elements are integral to the system's operation. Furthermore, the cruise control switch located on the steering wheel should be checked for faults, as a malfunction here can inhibit activation. Lastly, if your X-90 is a manual transmission, ensure that the clutch switch contacts are functioning correctly, as the ECU relies on these signals to set the cruise control. By systematically examining these areas, DIYers can effectively identify and address the root causes of cruise control issues in their Suzuki X-90.

How urgent is it to repair the non-functioning cruise control in a 1998 Suzuki X-90?

When it comes to the non-functioning cruise control in a 1998 Suzuki X-90, the urgency of repair cannot be overstated. A malfunctioning cruise control system not only compromises the convenience of long drives but also poses significant safety risks. For instance, if the system fails to maintain a constant speed, it can lead to erratic acceleration, making it difficult to control the vehicle, especially in high-traffic situations. Additionally, issues such as a faulty brake pedal switch or electrical problems can further complicate the situation, potentially leading to more severe damage if left unaddressed. The cost of repairs can escalate quickly, particularly if minor issues develop into major ones due to neglect. Therefore, it is crucial to diagnose and resolve any cruise control malfunctions as soon as they are noticed, ensuring both the safety of the driver and passengers and the overall performance of the vehicle. Taking prompt action not only enhances driving comfort but also prevents the risk of accidents and costly repairs down the line.

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