2017 Ram ProMaster 1500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 Ram ProMaster 1500 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
0%
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 2017 Ram ProMaster 1500 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 2017 Ram ProMaster 1500 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 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.

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.

What are the steps to diagnose the cruise control issue in a 2017 Ram ProMaster 1500?

To effectively diagnose a cruise control issue in a 2017 Ram ProMaster 1500, it's essential to adopt a systematic approach that begins with the simplest potential problems before progressing to more complex diagnostics. Start by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as faulty buttons can prevent engagement. Utilizing a diagnostic scanner to check for error codes stored in the vehicle's computer can provide critical insights into any underlying issues. Following this, examine the vehicle speed sensor, as a malfunctioning sensor can hinder the cruise control from activating. Additionally, ensure that the brake pedal switch is functioning correctly, since it is responsible for disengaging the cruise control when the brakes are applied. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or corrosion, as these can significantly impact performance. By methodically addressing these areas, you can accurately identify and resolve the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2017 Ram ProMaster 1500?

When the cruise control in a 2017 Ram ProMaster 1500 ceases to function, several common problems may be at play. One of the primary culprits is a faulty brake light switch, which is crucial for disengaging the cruise control when the brakes are applied. If this switch malfunctions, it may not send the correct signal, preventing the cruise control from engaging. Another potential issue is related to the speed sensor; if this component fails, the cruise control system may not receive accurate speed data, leading to unexpected disengagement. Additionally, problems with the throttle control system, such as a defective throttle position sensor, can hinder the cruise control's ability to maintain a steady speed. Electrical issues, including blown fuses or wiring problems, can also disrupt the cruise control's operation, making it essential to check the vehicle's electrical connections. Lastly, vacuum leaks in the engine system can affect performance, as they may lead to a loss of vacuum pressure necessary for the cruise control to function properly. By understanding these common issues, DIYers can effectively troubleshoot and restore the cruise control functionality in their vehicle.

How urgent is it to address the non-functioning cruise control in a 2017 Ram ProMaster 1500?

Addressing a non-functioning cruise control in your 2017 Ram ProMaster 1500 is crucial for both safety and vehicle performance. When cruise control fails, it not only diminishes the convenience of maintaining a steady speed during long drives but may also signal deeper issues within the vehicle's electronic or engine control systems. Ignoring this malfunction can lead to increased driver fatigue and reduced fuel efficiency, particularly on extended highway trips where cruise control is most beneficial. Moreover, a malfunctioning system could be indicative of more serious underlying problems that, if left unresolved, may escalate into costly repairs. Therefore, it is essential to prioritize the diagnosis and repair of your cruise control system to ensure your safety on the road and to maintain the overall health of your vehicle. Taking prompt action can prevent further complications and enhance your driving experience.

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