Dodge Sprinter 3500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Dodge Sprinter 3500 and How to Fix Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
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25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Dodge Sprinter 3500 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 Dodge Sprinter 3500 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 Dodge Sprinter 3500

When troubleshooting cruise control issues in your Dodge Sprinter 3500, start by checking the simplest components first. Begin with the cruise control switch; ensure it is functioning correctly and not misadjusted. If the switch appears to be in good condition, inspect the brake pedal switch, as a defective switch can prevent the cruise control from engaging. Next, examine the vehicle's fuses to rule out any blown fuses that could disrupt the system. If these initial checks do not resolve the issue, consider the throttle control system, as problems here can also lead to cruise control malfunctions. If the cruise control disengages at speeds above 48 mph, remember that this is a normal function of the system. For more complex diagnostics, using a compatible scanner to check for fault codes in the brake system can provide insights into underlying issues. If the cruise control fails to reset after tapping the brake, a simple restart of the vehicle may reactivate the system. By following this structured approach, you can effectively identify and address the common causes of cruise control problems in your Dodge Sprinter 3500.

What Could Cause Cruise Control Issues in a Dodge Sprinter 3500?

When troubleshooting cruise control issues in a Dodge Sprinter 3500, it's essential to consider several common problems that could be affecting the system's functionality. A failed control module, sensor, or switch is often at the root of these issues, as these components are critical for the proper operation of cruise control. Additionally, throttle actuation problems, particularly those stemming from a faulty throttle position sensor, can lead to erratic engine behavior, such as excessive fuel consumption and black exhaust. It's also worth checking for a blown fuse or a defective brake pedal switch, as these can directly interrupt cruise control operation. In older models, a broken vacuum line may be the culprit, while misadjustments or faults in the switch circuits can disable the system altogether. Furthermore, errors related to the Electronic Stability Program (ESP) or the Anti-lock Braking System (ABS) can prevent cruise control from engaging, often triggered by issues with various sensors. To effectively diagnose and resolve these problems, a thorough inspection of the vehicle's systems and components is necessary, ensuring that you can restore the cruise control functionality efficiently.

Why is the Cruise Control Not Working in a Dodge Sprinter 3500?

When the cruise control in your Dodge Sprinter 3500 malfunctions, it’s crucial to address the issue promptly, as neglecting it can lead to safety risks and potentially escalate into more significant problems. Common causes such as a failed control module, faulty sensors, or issues with the throttle actuation can compromise your driving experience and safety on the road. Additionally, problems with the brake pedal switch or blown fuses can prevent the cruise control from functioning, which may lead to unexpected acceleration or difficulty maintaining speed. To effectively troubleshoot, start by checking for blown fuses and assessing the condition of the brake pedal and throttle body. Utilizing a diagnostic scanner can also help identify underlying issues that may not be immediately visible. By taking these steps, you not only enhance your vehicle's performance but also ensure a safer driving environment for yourself and others.

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