Dodge Ram 50 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Dodge Ram 50 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 Dodge Ram 50 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 Ram 50 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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

Troubleshooting Cruise Control Issues in a Dodge Ram 50

When troubleshooting cruise control issues in a Dodge Ram 50, it's essential to adopt a systematic diagnostic approach. Start by checking the fuses associated with the cruise control system, as a blown fuse can prevent the system from functioning altogether. If the fuses are intact, move on to diagnosing common problems such as control module failures, sensor malfunctions, or throttle actuation issues. Pay attention to any irregularities, like speed fluctuations, which may indicate deeper issues. Next, inspect the components involved in the cruise control operation, including the brake switch, steering wheel button, and speed control sensor. If these checks do not yield results, consider resetting the system, as this can sometimes resolve minor glitches. Lastly, don't overlook the potential for simple physical interventions; gently tapping the steering wheel near the switches has been known to restore functionality in some cases. By following this structured approach, you can effectively identify and resolve cruise control issues in your Dodge Ram 50, making your DIY troubleshooting efforts more successful.

What to Check When the Cruise Control Isn't Working in a Dodge Ram 50?

When your Dodge Ram's cruise control isn't functioning, several common problems may be at play. Start by checking the fuse associated with the cruise control system, as a blown fuse can disrupt power to essential components. Next, inspect the brake pedal sensor, which is crucial for the cruise control to operate; if this sensor is faulty, it may prevent the system from engaging. Additionally, examine the cruise control switch and wiring for any signs of damage or malfunction, as these can also hinder functionality. It's important to verify the integrity of the solenoid circuits, as faulty solenoids can impede the system's operation. Don't overlook the vacuum release valve, which, if defective, can deprive the cruise control servo of necessary engine vacuum. Lastly, consider the brake pedal switch, as a malfunction here can similarly prevent the cruise control from working. By methodically checking these components, you can effectively troubleshoot and potentially resolve the cruise control issues in your Dodge Ram.

Why is the Cruise Control Not Working in a Dodge Ram 50?

When your cruise control is not functioning in a Dodge Ram 50, it’s crucial to address the issue without delay. Ignoring symptoms such as a malfunctioning control module, faulty brake pedal sensor, or throttle actuation problems can not only compromise your driving experience but also pose significant safety risks. For instance, if the cruise control disengages unexpectedly while driving, it could lead to loss of speed control, increasing the likelihood of an accident. Additionally, unresolved issues may escalate, resulting in more extensive and costly repairs down the line. Therefore, it’s advisable to conduct a thorough inspection of the cruise control system, including checking the brake switch, throttle control, and any potential connection issues related to the steering. By taking action early, you can ensure a safer driving experience and maintain the reliability of your vehicle.

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