1992 Dodge Grand Caravan Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 1992 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 1992 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 1992 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 steps to diagnose the non-functional cruise control in a 1992 Dodge Grand Caravan?

To effectively diagnose the non-functional cruise control in your 1992 Dodge Grand Caravan, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control control module, as this is a common culprit for cruise control failures. Next, examine the sensor associated with the cruise control system, since sensor malfunctions can disrupt its operation. Following this, test the throttle to ensure it is functioning correctly, as any issues here can also affect cruise control performance. Additionally, check the switches related to the cruise control; if they are faulty, they may prevent the system from engaging. Lastly, pay attention to the cruise control on/off button; if it is sticking or not making proper contact, this could be the source of the problem. By methodically assessing these components, you can identify the root cause of the issue and take the necessary steps to restore functionality to your vehicle's cruise control system.

What are the common problems that could cause the cruise control to stop working in a 1992 Dodge Grand Caravan?

When dealing with a malfunctioning cruise control system in a 1992 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; a blown fuse can easily disrupt the entire system, so inspecting and replacing it if necessary is a straightforward first step. Next, consider the brake pedal switch, which is designed to disengage the cruise control when the brake is applied. If this switch is faulty, it may prevent the cruise control from engaging at all. Additionally, vacuum leaks can significantly impact the system's performance, as the cruise control relies on a vacuum to maintain speed. A malfunctioning speed sensor is another critical component to examine, as it provides the necessary data for the cruise control to function correctly. Lastly, the cruise control module itself may be defective, which would require further investigation. By systematically checking these components, DIYers can effectively diagnose and potentially resolve the issues affecting the cruise control system in their Dodge Grand Caravan.

How urgent is it to address the malfunctioning cruise control in a 1992 Dodge Grand Caravan?

When it comes to a malfunctioning cruise control system in a 1992 Dodge Grand Caravan, the urgency of addressing the issue cannot be overstated. A faulty cruise control can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which poses a significant safety risk, especially on highways or busy roads. Ignoring these symptoms not only jeopardizes your safety but also increases the likelihood of accidents, which could have dire consequences. Furthermore, neglecting the problem may result in more extensive damage to the vehicle's components, leading to costly repairs down the line. Therefore, it is crucial to prioritize the inspection and repair of the cruise control system, ideally by a qualified mechanic, to ensure both your safety and the proper functioning of your vehicle. Taking prompt action can prevent dangerous situations and save you from more significant expenses in the future.

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