1993 Hyundai Elantra Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 1993 Hyundai Elantra

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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 1993 Hyundai Elantra 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 1993 Hyundai Elantra 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.

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.

What are the initial steps to diagnose the non-functioning cruise control in a 1993 Hyundai Elantra?

When diagnosing a non-functioning cruise control in a 1993 Hyundai Elantra, it's essential to adopt a systematic approach that begins with the simplest solutions before delving into more complex diagnostics. Start by checking the fuses and relays associated with the cruise control system, as a blown fuse can often be the root of the problem. Next, inspect the brake light switch, which is crucial for the cruise control's operation; if this switch is faulty, it may prevent the system from engaging. Ensure that all brake lights are functioning properly, as any malfunction here can also disrupt cruise control functionality. After that, test the cruise control switch located on the steering wheel, as wear and tear or contamination can lead to failure. Additionally, keep an eye out for any warning lights on the dashboard, such as ABS or traction control indicators, since these systems can be interconnected with cruise control. If the issue seems intermittent, try to replicate the problem and consider resetting the vehicle's electrical system by removing the key and restarting the car. Finally, conduct a thorough check for any other electrical issues that may indicate broader problems affecting the cruise control. By following this diagnostic approach, you can effectively narrow down the potential causes and identify the specific issue at hand.

What are the common problems that could cause the cruise control to stop working in a 1993 Hyundai Elantra?

When diagnosing cruise control issues in a 1993 Hyundai Elantra, it's essential to consider several common problems that may be at play. One of the first areas to investigate is the cruise control switch located on the steering wheel, as a malfunction here can prevent the system from engaging. Additionally, the brake switch and brake lights are critical components; if the brake light is burned out or the switch is faulty, the cruise control will not function, as it relies on these signals to operate safely. Electrical issues, such as poor connections or blown fuses, can also disrupt the necessary signals for cruise control, making it vital to check these components for integrity. Another potential culprit is the clock spring, which connects the steering wheel controls to the vehicle's electrical system; if this part is damaged, it can affect the cruise control's operation. Furthermore, the cruise control module itself may be faulty, requiring replacement with a genuine OEM part to restore functionality. Lastly, for manual transmission vehicles, a malfunctioning clutch switch can inhibit cruise control engagement. By systematically checking these areas, DIYers can effectively identify and address the root cause of cruise control failures in their Hyundai Elantra.

How urgent is it to address the non-functioning cruise control in a 1993 Hyundai Elantra?

When dealing with a non-functioning cruise control in a 1993 Hyundai Elantra, it's essential to recognize that while the immediate urgency may not be high, the implications of neglecting this issue can be significant. The cruise control system, although primarily a convenience feature, is interconnected with other critical vehicle systems, such as the brake light switch and ABS sensors. If these components are malfunctioning, it could lead to more severe safety concerns that warrant immediate attention. Additionally, the absence of cruise control can make long drives more exhausting, impacting your overall driving experience. Therefore, it is advisable to investigate the root cause of the malfunction, as it may indicate underlying problems that could escalate if left unaddressed. For instance, a faulty brake light switch not only affects cruise control but also compromises the functionality of your brake lights, posing a safety risk. By proactively diagnosing and resolving these issues, you can ensure the overall health and safety of your vehicle, making it a worthwhile endeavor to address the non-functioning cruise control sooner rather than later.

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