Q: Security system malfunctioning

asked by on

The built-in security system on my car is malfunctioning and goes off whenever it feels like it. In addition, my blower fan keeps going bad. I have had to replace it twice, but it keeps freezing up until it won't work at all.

Your security system is likely controlled by a control module or computer of some kind. Considering that you say the alarm has a mind of its own, this may be a computer issue and will likely require scan tools for diagnosis. As for the blower motor, if the blower motor resistor was not replaced when the motor was replaced, this could cause your issue. It is also possible that you have a short circuit somewhere via exposed wiring in the blower motor circuit which is causing the fuse to blow and therefore makes the motor inoperative. A full inspection of both systems performed by a qualified professional should lead you to the correct diagnosis of both of your issues.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Security system malfunctioning

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: The front passenger door will not unlock or open. How can I fix this? What part do I need? 2002 Ford Escape

Hi there - this sounds like the door lock actuator has failed. This a common failure over the years, especially with high-use doors like the front ones. I recommend a car door lock actuator replacement performed by a mobile, professional...

Q: My heater/air conditioner blows out hot and cold air appropriately, but makes a horrible grinding noise

This is a sign of a faulty blower motor. As you know, these have electric motors in them that wear out over time and will begin to make squeaking or grinding noises as the bearings begin to wear out. The...

Q: Car doesn't turn over. Replaced spark plugs and wires.

I would have a technician inspect your starting problem because it could be a number of things that would stop the car from starting.

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.