Suzuki Forenza Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Suzuki Forenza and How to Fix Them

Find Repair Location
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 Suzuki Forenza 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 Suzuki Forenza 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.

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.

Troubleshooting Cruise Control Issues in a Suzuki Forenza

When troubleshooting cruise control issues in your Suzuki Forenza, start by examining the simplest components first. Begin with the fuse and brake pedal switch, as these are common culprits for cruise control malfunctions. A blown fuse can easily disrupt the system, while a faulty brake pedal switch may prevent the cruise control from engaging. If these checks do not resolve the issue, inspect the throttle position sensor, as its failure can lead to erratic engine behavior and affect cruise control functionality. Additionally, consider the control module and throttle actuation mechanisms, as problems here can also hinder performance. If the check engine light is illuminated, it may indicate underlying engine issues that need addressing, so resetting the system by disconnecting the battery for a short period can sometimes help. By following this diagnostic approach, you can systematically identify and potentially resolve the cruise control problems in your Suzuki Forenza before seeking professional assistance.

What Are the Common Causes of Cruise Control Malfunction in a Suzuki Forenza?

When troubleshooting cruise control malfunctions in a Suzuki Forenza, it's essential to understand the common problems that may arise. One frequent issue is a failed control module, sensor, or switch, which can disrupt the entire cruise control system. Additionally, throttle actuation problems, particularly stemming from a faulty throttle position sensor, can lead to erratic cruise control behavior, often indicated by black exhaust emissions. Another common culprit is a blown fuse, which can interrupt the power supply to the cruise control system, rendering it inoperative. It's also important to consider the brake pedal position sensor, as any malfunction here can prevent the cruise control from engaging properly. Furthermore, issues with the throttle body or the PRNDL/shifter position switch can contribute to the problem. In older models, a broken vacuum line may also be a factor. By systematically checking these components, you can effectively diagnose and address the cruise control issues in your Suzuki Forenza, ensuring a smoother driving experience.

Why is the Cruise Control Not Working in a Suzuki Forenza?

When the cruise control in your Suzuki Forenza is not functioning, it’s crucial to address the issue without delay. Ignoring symptoms such as an unresponsive cruise control switch or inconsistent speed can lead to dangerous driving situations, especially on long trips where maintaining speed is essential for safety. A faulty cruise control system may also indicate underlying problems, such as a blown fuse or issues with the brake light switch, which could affect other vehicle functions. Additionally, if the speed sensor is malfunctioning, it may not only disrupt cruise control but also impact your vehicle's overall performance. By diagnosing and resolving these issues early, you can prevent potential safety hazards and avoid costly repairs down the line. Taking the time to investigate the cause of the malfunction will ensure that your Suzuki Forenza remains safe and reliable on the road.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.