1998 Dodge Grand Caravan Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 1998 Dodge Grand Caravan and How to Fix Them

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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 1998 Dodge Grand Caravan 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 1998 Dodge Grand Caravan 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.

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.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 1998 Dodge Grand Caravan?

When troubleshooting the non-functional cruise control in a 1998 Dodge Grand Caravan, 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 often be the simplest fix. Next, assess the brake pedal and throttle body; any issues here can directly impact cruise control functionality. Ensure that the cruise control light activates when the engine is turned on, as this can provide clues about the system's status. If the light is on, you may not need to inspect the clock spring, which connects various components. Additionally, use an OBD2 scan tool to check for any trouble codes that might indicate underlying problems, especially if the check engine light is illuminated. Finally, inspect the speed sensors on the transmission, as faulty sensors can disrupt both cruise control and speedometer performance. By following these steps, you can effectively narrow down the potential causes of your cruise control issues and take the necessary actions to resolve them.

What are the common problems that could cause the cruise control to stop working in a 1998 Dodge Grand Caravan?

When dealing with cruise control issues in a 1998 Dodge Grand Caravan, it's essential to understand the common problems that could be at play. One of the first things to check is the fuse associated with the cruise control system; a blown fuse can easily disrupt its functionality. Next, consider the brake pedal switch, as a faulty switch may cause the cruise control to disengage unexpectedly or prevent it from activating altogether. Additionally, the speed sensor plays a crucial role in maintaining a consistent speed, and if it's defective, it can lead to cruise control failure. Another potential culprit is vacuum leaks within the system, which can interfere with the necessary vacuum pressure for proper operation. Lastly, the cruise control module itself may be defective, resulting in a lack of response to commands. By systematically examining these components, you can effectively troubleshoot and potentially resolve the cruise control issues in your Dodge Grand Caravan.

How urgent is it to address the non-functioning cruise control in a 1998 Dodge Grand Caravan?

Addressing the non-functioning cruise control in a 1998 Dodge Grand Caravan should be treated with a sense of urgency, as neglecting this issue can lead to safety risks and further complications. Cruise control is designed to enhance driving comfort and reduce fatigue, especially on long trips. When it fails, it not only diminishes the driving experience but may also indicate deeper mechanical problems, such as a faulty brake switch or issues with the control module. Ignoring these symptoms could result in more significant repairs down the line, potentially leading to costly damage or even compromising vehicle safety. Therefore, it is crucial to diagnose and resolve cruise control issues promptly to ensure a safe and enjoyable driving experience while preventing any escalation of underlying problems.

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