Chrysler Imperial Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Chrysler Imperial 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
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25% chance it's the
Control Module
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25% chance it's the
Throttle
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20% chance it's
Something else
The most common reasons a Chrysler Imperial 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 Chrysler Imperial 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.

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 Chrysler Imperial

When troubleshooting cruise control issues in your Chrysler Imperial, start with the basics to identify the problem efficiently. Begin by inspecting the fuses associated with the cruise control system, as a blown fuse is a common culprit that can easily be overlooked. Next, examine the brake pedal and throttle body for any signs of wear or malfunction, since these components directly affect cruise control functionality. Utilizing a diagnostic scanner can provide valuable insights into any error codes and help verify the operation of the speed sensor, which is essential for cruise control to work correctly. If the cruise control on/off button is unresponsive, a gentle tap on the back of the steering wheel module may restore its function. Additionally, be aware that issues such as a faulty brake light or brake switch, as well as any check engine light alerts, can also hinder the cruise control system. By understanding the operational mechanics of cruise control, including how to set, adjust, and cancel it, you can better diagnose and resolve any issues that arise, ensuring a smoother driving experience.

What Could Cause the Cruise Control to Malfunction in a Chrysler Imperial?

When dealing with cruise control malfunctions in a Chrysler Imperial, it's essential to consider several common problems that could be at fault. One of the primary culprits is a failed control module, which can disrupt the entire cruise control system. Additionally, issues with sensors or switches, particularly the brake pedal switch, can prevent the system from engaging or cause it to disengage unexpectedly. Throttle actuation problems, often stemming from a malfunctioning throttle body, can also lead to erratic cruise control behavior, as this component is crucial for maintaining the desired speed. In older models, a blown fuse or a broken vacuum line may be responsible for the failure, while newer systems might experience issues with integrated sensors or cameras. Furthermore, engine-related problems, such as a check engine light or faulty brake lights, can interfere with cruise control functionality. By understanding these potential issues, DIYers can systematically troubleshoot and address the root cause of their Chrysler Imperial's cruise control problems, ensuring a smoother driving experience.

Why is the Cruise Control Not Working in a Chrysler Imperial?

When the cruise control in your Chrysler Imperial is not functioning, it’s crucial to address the issue promptly, as neglecting it can lead to safety risks and further complications. Common culprits include a failed control module, faulty sensors, or issues with the cruise control switch, all of which can disrupt the system's operation. Additionally, throttle actuation problems, such as a defective speed sensor or poor wire connections, may prevent the cruise control from engaging properly. A blown fuse or a malfunctioning brake pedal switch can also interrupt power to essential components, exacerbating the problem. In older models, a broken vacuum line is often a hidden cause of cruise control failure. If you suspect a blown fuse, checking and replacing it can be a straightforward fix. However, if the issue persists, it may indicate deeper problems with the computer or control module, which are vital for the cruise control's functionality. Addressing these issues not only restores your vehicle's convenience but also ensures your safety on the road.

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