2004 Chrysler PT Cruiser Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2004 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 2004 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 2004 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.

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 non-functioning cruise control in a 2004 Chrysler PT Cruiser?

To effectively diagnose the non-functioning cruise control in a 2004 Chrysler PT Cruiser, it's essential to adopt a systematic diagnostic approach that prioritizes simpler checks before delving into more complex issues. Begin by inspecting the fuse associated with the cruise control system, as a blown fuse is a straightforward and common culprit that can easily be replaced. Next, assess the cruise control switch to ensure it is operational; a malfunctioning switch can prevent the system from engaging. Following this, examine the brake pedal switch, which is crucial for disengaging the cruise control when brakes are applied; if this switch is faulty, it may inadvertently disable the cruise control. The vehicle speed sensor is another critical component to check, as it provides necessary data for the cruise control to function correctly. Utilizing a diagnostic scanner to check for error codes can further assist in identifying specific issues within the system. Lastly, inspect the wiring and connections for any signs of damage or loose connections, as these can disrupt the cruise control's functionality. By following this structured approach, you can efficiently diagnose and address the issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2004 Chrysler PT Cruiser?

When the cruise control in a 2004 Chrysler PT Cruiser ceases to function, several common problems may be at play. One of the primary culprits is a faulty brake light switch, which is crucial for the cruise control system as it disengages the cruise when the brake pedal is pressed. If this switch is malfunctioning, it can prevent the cruise control from engaging altogether. Another potential issue is a defective speed sensor; this component is responsible for relaying the vehicle's speed to the cruise control system, and if it fails, the system may not operate correctly. Additionally, a blown fuse can disrupt the cruise control's electrical circuit, so checking the fuses is a simple yet effective troubleshooting step. Vacuum leaks in the engine can also impact the cruise control's ability to maintain speed, leading to erratic behavior or complete failure. Lastly, a malfunctioning cruise control module itself may need to be replaced if other components are functioning properly. By systematically checking these common issues, DIYers can effectively diagnose and resolve cruise control problems in their PT Cruiser.

How urgent is it to address the non-functioning cruise control in a 2004 Chrysler PT Cruiser?

Addressing a non-functioning cruise control in a 2004 Chrysler PT Cruiser should not be overlooked, as it can lead to a range of inconveniences and potential complications. While the immediate safety risk may be minimal, the cruise control system is designed to enhance driving comfort, particularly during long trips. A malfunction can disrupt this convenience, making drives more tiring and less enjoyable. Moreover, a faulty cruise control may signal underlying electrical issues that could escalate if left unaddressed. Ignoring the problem could result in further damage to the vehicle, leading to more costly repairs down the line. Therefore, it is advisable for DIY enthusiasts to investigate the issue promptly, as timely intervention can prevent more significant problems and ensure a safer, more comfortable driving experience.

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2004 Chrysler PT Cruiser Cruise Control Issues & Repairs