I have a 2006 R53 mini. Blower motor just quit. I check for power from plug on Driverside. Changed resistor. Also checked for power to resistor. No power. Where is the Blower fuse or relay?

 

Which control panel do you have?

Thumbing through my Bentley manual, it makes a big difference in how you troubleshoot it.




The most common trouble is that the blower motor brushes have worn out. If you check the resistance across the motor, it should be a value of somewhere around 1 ohm.

I’ll look and see where the fuse is located.

 

I have the IHKS the top one in picture

 

The blower motor relay should be behind the cover in the left kick panel, the second one up from the bottom.

The blower motor fuse should be F31, a 30 amp fuse.




Hope this helps.

 

The device in the gray box marked “K4” is the blower motor relay.

Don’t know if this will help or not. I’ll double check to be sure it applies to your system, and not just to the Automatic Climate Control.

EDIT: Never mind, this one is for the ACC system.

 

OK, this is the one you need. It seems to be valid all the way through the 2006 model year.

 

 

This is my foot panel fuse box. No relays.

 

The red arrow points to a relay, it should pull straight out but I’m not sure it’s for the blower motor. Just above that is an empty relay socket.

The fuse in the red circle should be the blower motor fuse.

Is there a legend on the inside of the cover showing what each fuse is for?




Edit: The Owner’s Manual might have drawings of the fuse boxes, relays would probably be included.

 

Here's a picture of my fuse diagram

 

Ok, the 30 amp fuse I circled is the blower motor fuse, but it looks like the relay is for the headlights.

Is the fuse ok? You should find voltage at both ends of the fuse, between the ends and a good ground point. (Key On)

Edit: apparently the blower motor relay has been relocated on the 2006 model and the Bentley manual doesn’t show that. I’ll dig around and see what I can find.

 

They may have put the relay on the back side of the fuse panel we’re looking at.

Saw that on another one of my kid’s Honda Pilot.

 

There is another fuse box in the engine compartment, next to the battery and the left strut tower. Might be worth a look.

That’s where they hid the relay on earlier models.

 

I vaguely remember reading that some had the relays built in to the board in the kick panel iirc.

possible to check for volts at the motor plug?

 

Yes, there should be about 12 volts across the plug.

While you’re there, make sure the motor doesn’t read an open circuit.

If you remove the plug from the motor and put the voltmeter probes into the front of it, you will read the same 12 volts or so, no matter where the fan speed switch is set.

If you leave it plugged in to the motor and put the probes into the back of the connector (if possible), you will read different voltages as you move the fan speed switch from Low to High provided that the blower motor isn’t open.

 

I did check from car to see if I'm getting 12V from plug. I got nothing. Thats why I was thinking it was a fuse or relay.

 

Oops, now I see that reading back through.

Do you have 12 volts to ground on both sides of the 30 amp fuse (key on)?

Looking at the schematic again, I noticed that the blower motor relay is controlled by a signal from the General module control unit, also called out in the book as BC1, body control module.

I’ll see what I can find out.

 

My Bentley shows this BC1 module is located behind the right footwell trim. Getting a meter probe into it may be a challenge.

 

Here’s one more tiny piece to this puzzle; referring to the schematic I posted earlier, there is a connector on the fuse holder called out as X10205. I’ll try to find a picture.

Pin 4 on that connector has a Brown wire with a Red tracer. The tracer could be a stripe or a series of dots. That wire goes back to BC1, the General Module Control unit. X253 is the connector on the BC1 unit, the wire goes to pin 23 of that connector.

That’s as far as we need to trace it for now.

The coil of the blower relay is switched on by the BC1 module. If the BC1 doesn’t ground that side of the relay coil, the coil never switches it’s contacts and no voltage gets out to the blower switch or anything else.

I’d locate that wire on one end or the other, whatever you can get at. Then check for 12 VDC. You should see 12V with the blower turned off, and then no voltage once you try to turn the blower on.

You may be able to hear a small “click” as the relay switches on.

 

Looks like we are having the same issue. I subscribed to this one as well as the one I just posted to before I found this one.

https://www.northamericanmotoring.co...-no-power.html

 

I connected power and ground to blower. Goes on at high speed. Wires going to plug are brown and the other is white.

 

Does one of the wires read 0 ohms to ground?

 

I check the ohms on blower. No open circuit. All good.

 

Do you have a picture of this BC1 Module?

 

The BC1 is the picture in the middle of this shot

Right now this is the best I have to offer.

Came down sick Thursday night, in quarantine now. Meds have got me loopy.

Try checking resistance between ground and the wires in the plug, one of them should be grounded.