Ram 1500 Classic Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Ram 1500 Classic and How to Fix Them

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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 Ram 1500 Classic 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 Ram 1500 Classic 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.

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 Ram 1500 Classic

When troubleshooting cruise control issues in your Ram 1500 Classic, it's essential to adopt a systematic diagnostic approach. Begin by checking the fuses associated with the cruise control system, as a blown fuse can often be the simplest explanation for malfunction. If the fuses are intact, proceed to inspect the control module, throttle, and sensors, as these components are critical for the system's operation. Look for any signs of wear or damage, as sensor failures and throttle issues are common culprits. If the problem persists, consider practical troubleshooting steps, such as trying specific button combinations or unconventional fixes like gently tapping the steering wheel near the controls. This methodical approach not only helps in identifying the root cause but also empowers you to resolve the issue efficiently, allowing you to enjoy a seamless driving experience once again.

What to Check When Cruise Control Isn't Working in a Ram 1500 Classic?

When troubleshooting cruise control issues in a Ram 1500 Classic, it's essential to understand the common problems that can arise within the system. One of the first areas to investigate is the fuses associated with the cruise control; a blown fuse can disrupt the entire system's functionality. Additionally, performing a system reset can often resolve minor glitches that prevent the cruise control from engaging. If these initial checks do not yield results, inspecting the vacuum lines for leaks is crucial, as these lines are integral to the operation of the cruise servo. Furthermore, the control switch should be examined for faults, as a malfunctioning switch can inhibit activation. It's also important to check the brake light and brake switch, as any issues here can directly affect cruise control performance. Lastly, utilizing an OBD2 scanner to look for error codes can provide valuable insights into underlying problems. By systematically addressing these common issues, you can effectively diagnose and potentially resolve the cruise control malfunction in your Ram 1500 Classic.

Why is the Cruise Control Not Working in a Ram 1500 Classic?

When your cruise control is not functioning in a Ram 1500 Classic, it’s crucial to address the issue without delay. Ignoring symptoms such as a malfunctioning brake pedal sensor or speed fluctuations can lead to more significant problems down the line, including potential safety hazards while driving. A faulty cruise control system can distract you from maintaining proper vehicle control, especially on long drives where consistent speed is essential. Additionally, issues like a blown fuse or faulty wiring can escalate, potentially leading to costly repairs if not resolved early. By diagnosing and fixing these problems promptly, you not only enhance your driving experience but also ensure your vehicle operates safely and efficiently. Taking the time to investigate the root causes of cruise control malfunctions can save you from more severe complications and keep your Ram 1500 Classic in optimal condition.

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