1994 Dodge Viper Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 1994 Dodge Viper

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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 1994 Dodge Viper 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 1994 Dodge Viper 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.

What are the initial steps to diagnose the non-functional cruise control in a 1994 Dodge Viper?

When diagnosing the non-functional cruise control in a 1994 Dodge Viper, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the fuse associated with the cruise control system, as a blown fuse is a common and easily rectifiable issue. Next, assess the cruise control switch to ensure it is operational; a malfunctioning switch can prevent the system from engaging. Following this, examine the vacuum lines, which are critical in older models like the Viper, for any signs of leaks or damage that could disrupt the system's functionality. Additionally, testing the speed sensor is vital, as it ensures the vehicle maintains a consistent speed when cruise control is activated. Lastly, verify the brake pedal switch, which is designed to disengage the cruise control when the brake is applied; ensuring this switch is functioning correctly is crucial for the system's safety and reliability. By methodically working through these steps, you can effectively identify and address the root cause of the cruise control issue in your Viper.

What are the common problems that could cause the cruise control to stop working in a 1994 Dodge Viper?

When dealing with a malfunctioning cruise control system in a 1994 Dodge Viper, it's essential to understand the common problems that may be at play. One of the first areas to check is the cruise control switch, as a faulty switch can prevent the system from engaging. Additionally, a blown fuse could be the culprit, so inspecting the fuses related to the cruise control system is a wise step. Another potential issue is vacuum leaks, which can disrupt the system's functionality and should be checked for any signs of wear or damage. The speed sensor also plays a critical role; if it's defective, it can lead to unexpected disengagement of the cruise control. Furthermore, the brake light switch is crucial for the system's operation, and any issues here can hinder activation. Lastly, don't overlook the throttle cable, as any malfunction can affect the cruise control's ability to maintain speed. By systematically examining these components, you can effectively troubleshoot and potentially resolve the cruise control issues in your Viper.

How urgent is it to repair the non-functioning cruise control in a 1994 Dodge Viper?

Repairing the non-functioning cruise control in a 1994 Dodge Viper is not just a matter of convenience; it is a critical safety concern that should be addressed promptly. When cruise control fails, drivers may find themselves distracted as they struggle to maintain a consistent speed, which can lead to dangerous driving situations. Additionally, the underlying causes of cruise control malfunctions, such as blown fuses or faulty wiring, can escalate into more significant electrical issues if left unattended. This not only compromises the vehicle's performance but can also affect other systems, leading to costly repairs down the line. Therefore, for those looking to DIY this repair, it is essential to act swiftly to restore the functionality of the cruise control system, ensuring a safer and more enjoyable driving experience.

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