1992 Mazda MX-6 Cruise Control Isn't Working

Fixing cruise control issues in the 1992 Mazda MX-6

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Reviewed by
Bo Fader
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 1992 Mazda MX-6 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 1992 Mazda MX-6 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.

What are the steps to diagnose the non-functioning cruise control in a 1992 Mazda MX-6?

To effectively diagnose the non-functioning cruise control in your 1992 Mazda MX-6, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the fuse associated with the cruise control system, as a blown fuse is a common and easily fixable issue. Next, verify the functionality of the cruise control switch; a malfunctioning switch can prevent the system from engaging. Following this, examine the vacuum lines for any leaks or blockages, as these can significantly impact the cruise control's performance. If these initial checks do not resolve the issue, proceed to test the cruise control module to ensure it is sending the correct signals. Additionally, check the speed sensor, which is vital for maintaining the set speed, and inspect the brake and clutch switches, as faulty switches can disable the cruise control for safety reasons. Finally, using a diagnostic scanner to check for error codes can provide insights into any underlying problems. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the cruise control malfunction in your Mazda MX-6.

What are the common problems that could cause the cruise control to stop working in a 1992 Mazda MX-6?

When troubleshooting the cruise control system in a 1992 Mazda MX-6, it's essential to understand the common problems that may lead to its failure. One of the first things to check is the fuse; a blown fuse can easily disrupt the entire system, and replacing it is a straightforward fix. If the fuse is intact, the next step is to inspect the cruise control switch, as a malfunctioning switch can prevent the system from engaging properly. Additionally, vacuum leaks are a frequent culprit; these leaks can occur in the vacuum lines and significantly affect the cruise control's operation, so a thorough inspection is necessary. Another critical component to consider is the speed sensor; if it is faulty, it may not relay the correct speed information, leading to cruise control issues. Lastly, the brake light switch should not be overlooked, as problems here can cause the cruise control to disengage unexpectedly. By systematically checking these components, you can effectively diagnose and potentially resolve the cruise control issues in your Mazda MX-6.

How urgent is it to repair the non-functioning cruise control in a 1992 Mazda MX-6?

When evaluating the urgency of repairing the non-functioning cruise control in a 1992 Mazda MX-6, it's essential to weigh the implications of neglecting this feature. Although cruise control is primarily a convenience, its absence can lead to increased driver fatigue, especially on long journeys, which may inadvertently compromise safety. If the lack of this feature is causing discomfort or distraction, it becomes more pressing to address the issue. Additionally, if you have plans to sell the vehicle, restoring all functionalities, including cruise control, can enhance its appeal and potentially increase its resale value. Before making a decision, consider having a professional conduct a diagnostic check to identify the underlying problem. This assessment can provide clarity on whether the malfunction poses any risks or could lead to further complications down the line. Ultimately, while the repair may not be immediately critical, addressing it sooner rather than later can contribute to a more comfortable driving experience and maintain the vehicle's value.

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