2007 Chrysler PT Cruiser Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2007 Chrysler PT Cruiser 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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2007 Chrysler PT Cruiser 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 2007 Chrysler PT Cruiser 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.

What are the steps to diagnose the cruise control issue in a 2007 Chrysler PT Cruiser?

When diagnosing a cruise control issue in a 2007 Chrysler PT Cruiser, it's crucial to follow a methodical diagnostic approach that prioritizes simpler fixes before delving into more complex problems. Begin by checking the cruise control fuse, as a blown fuse is a common culprit that can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are working correctly, since malfunctioning buttons can prevent the system from engaging. After that, examine the speed sensors, which are vital for maintaining the desired speed; any issues here can significantly affect the cruise control's performance. Utilizing a diagnostic scanner to check for error codes can also provide insights into specific malfunctions within the system. If these initial checks do not reveal the issue, proceed to test the cruise control module to ensure it is properly sending and receiving signals, as a faulty module can lead to system failure. Lastly, inspect the wiring and connections for any signs of damage or corrosion, as these can severely impact the cruise control's operation. By systematically addressing these areas, you can effectively diagnose and resolve cruise control issues in your PT Cruiser.

What are the common problems that could cause the cruise control to stop working in a 2007 Chrysler PT Cruiser?

When dealing with a non-functional cruise control in a 2007 Chrysler PT Cruiser, it's essential to consider several common issues that could be at play. One of the primary culprits is a faulty brake light switch, which is crucial for the cruise control's operation; if this switch malfunctions, it may prevent the system from engaging, as it is designed to deactivate when the brake pedal is pressed. Another potential issue is a defective speed sensor, which can disrupt the necessary communication between the vehicle's speed system and the cruise control, leading to operational failures. Additionally, a blown fuse within the cruise control system can halt its functionality altogether, making it worthwhile to check and replace any blown fuses. Vacuum leaks in the engine can also impact the cruise control's ability to maintain a steady speed, so inspecting for any leaks is advisable. Lastly, a malfunctioning cruise control module may require replacement to restore the system's functionality. By understanding these common problems, DIYers can effectively diagnose and address the issues affecting their vehicle's cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2007 Chrysler PT Cruiser?

Addressing the malfunctioning cruise control in a 2007 Chrysler PT Cruiser is of utmost importance due to the potential safety hazards it presents. A malfunction can lead to unexpected acceleration or deceleration, which not only endangers the driver but also poses risks to other road users. Furthermore, neglecting these symptoms can diminish the driver's control over the vehicle's speed, especially in varying driving conditions, increasing the likelihood of accidents. Additionally, delaying repairs may result in further damage to the vehicle's systems, leading to more extensive and costly repairs down the line. Therefore, it is crucial to prioritize the resolution of cruise control issues to ensure both the safety of the vehicle's occupants and the integrity of the vehicle itself.

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