- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The blower relay is for high speed fan only most of the time . Do you know how to test electrical circuits ? It sure cuts down on buying unneeded parts . Here watch this video , this is a Chrysler vehicle . Don't know what you have , doesn't matter . They all work pretty much the same . I suggest you watch a few other trouble shooting videos as well .Is Chrysler Blower Motor Test subscriber requested video This next vehicle is a GM product , this one uses a relay for high blow only . Blower Motor Problems Auto Repair Help
You could have a relay that is bad , Blower motor relay in the under hood fuse/relay box. Or the blower motor itself could be bad . This is where you need to get a wiring diagram an a component location chart an a DVOM digital volt ohm meter an do some testing . The blower motor resistor , is this the part you changed ? If you haven't high blower operation either it couldn't be the blower motor resistor .
Change the resistor. For the 15-20 bucks it's a great diagnostic and a very common problem with GM vehicles.
Then you can start backtracing the harness as ray012965 suggested.
You need a blower motor resistor pack, follow the wire from the motor it will go into a connector with a few wires at the resistor pack. it's held in by 2 screws- easy to change.
This is probably not a relay problem.
Blower motor resistor usually the cause of this.Very common.
Depending on year and model of your car the location of resistor may vary.
And yes it's draining the battery.
Resistor has another name - Final Stage Controller.
Well you need to change the blower motor relay,if it works for awhile and then goes to only on high again change the relay and the blower motor.The relay is usually cheaper than the blower motor and thats why you should change that first.
×