Why is my Subaru Legacy cruise control not working?
If your Subaru Legacy's cruise control is not functioning properly, there could be a few potential reasons. In this article, we'll explore the common causes and provide troubleshooting steps to help you get your cruise control back up and running.
Common Causes of Cruise Control Failure in Subaru Legacy
There are several reasons why the cruise control in your Subaru Legacy may not be working as expected. Some of the most common causes include:
- Faulty cruise control switch or wiring: The cruise control switch, located on the steering wheel or turn signal stalk, may be malfunctioning or have a wiring issue, preventing the system from engaging.
- Brake system problems: If the brake system in your Subaru Legacy is not functioning correctly, the cruise control may not disengage properly when you press the brake pedal.
- Clutch switch issues (manual transmission): On manual transmission Subaru Legacys, a faulty clutch switch can prevent the cruise control from engaging.
- Sensor or module failure: Various sensors and modules, such as the vehicle speed sensor or the cruise control module, may be malfunctioning and causing the cruise control to stop working.
To determine the root cause of the issue, you'll need to perform some basic troubleshooting steps.
Troubleshooting Steps
Here are some steps you can take to diagnose and potentially fix the cruise control issue in your Subaru Legacy:
- Check the cruise control switch: Inspect the cruise control switch for any signs of damage or wear. Try pressing the switch to see if it's functioning properly.
- Inspect the wiring and connections: Examine the wiring harness and connections related to the cruise control system for any loose, damaged, or corroded components.
- Test the brake system: Ensure that the brake lights are functioning correctly and that the brake pedal is operating as expected.
- Check the clutch switch (manual transmission): If you have a manual transmission Subaru Legacy, test the clutch switch to make sure it's engaging and disengaging the cruise control properly.
- Scan for diagnostic trouble codes: Use an OBD-II scanner to check for any diagnostic trouble codes related to the cruise control system or its associated components.
If you're unable to identify and resolve the issue through these troubleshooting steps, it's recommended to have your Subaru Legacy inspected by a qualified automotive technician. They can perform more advanced diagnostics and provide a comprehensive solution to get your cruise control back in working order.
What are the symptoms of a blown fuse?
The most likely blown car fuse symptoms are related to electrical functions not working at all. That's almost always one specific system affected, with acute signs like: Power door locks not cycling. One or more power windows not going up or down.
Is it expensive to fix cruise control?
The average cost for a Cruise Control Module Replacement is between $630 and $643. Labor costs are estimated between $50 and $63 while parts are typically priced around $581. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
How do I know if my cruise control fuse is blown?
Probe the back side of each fuse. There are two places on the back side of each fuse to probe; if the test light does not light on both sides of the fuse you will find that the fuse is most likely blown.
What is the main cause of cruise control not working?
The speed sensor is broken.
These include regulating the fuel flow and ignition timing, indicating the speed that your car is travelling, and operating the cruise control system. If the speed sensor stops functioning properly, the cruise control will stop working.
How to reset cruise control?
If you notice that your speed fluctuates after setting it, your system may be malfunctioning. To determine if you have a problem, try resetting the system. To do this, turn the cruise control off by disengaging the switch in your car. Next, turn the system on again, set a speed, and reapply cruise control.
What sensor controls cruise control?
Speed and distance sensors.
ACC uses information from two sensors: a distance sensor that monitors the gap to the car ahead and a speed sensor that automatically accelerates and decelerates your car. ACC uses information from these sensors to adjust your speed and maintain the set distance from the car in front of you.
What does it cost to fix cruise control?
The average cost for a Cruise Control Module Replacement is between $630 and $643. Labor costs are estimated between $50 and $63 while parts are typically priced around $581. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
How much does it cost to fix cruise control?
The average cost for a Cruise Control Module Replacement is between $630 and $643. Labor costs are estimated between $50 and $63 while parts are typically priced around $581. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
Why is my Subaru cruise control not working?
If it's blown, you could try replacing the fuse and testing the cruise control. That could be enough to have you cruising in comfort once again! If not, it could be because of a faulty speed sensor. If your speedometer is also acting up, this is a likely culprit.
Can a blown fuse cause cruise control to stop working?
Common causes for your vehicle's cruise control to not work include: Bad Fuse - Common cause of failed cruise control system. When the fuse of the cruise control blows, the cruise control will stop working altogether.
