02ta

Now before you guys jump to the usual answers please read first. I already did some searching and reading on the subject. I have already replaced the blower motor(brand new from Advanced), and the blower motor resistor pack(also brand new from Advanced). I checked the engine fuse block and none of the fuses are blown on the block.

I did see in my searching that there is a relay and also sometimes the BMR connector can melt(no melting present). I have no clue where the relay is for the blower. History/symptoms include: blower motor inop in any postion of speed, heat or a/c. It just literally stopped working 4 days ago. Specs 00 XJ I6 auto.

Any help or suggestions would be awesome bc I'm ready to pull out my hair and winter is quickly approaching here in CO, so I need to get this fixed ASAP.

captainwoot

Turn blower on, with a test light check for power in either of the 2 wires, you should have power in the green wire. If not then you need to find out why i.e fuse, relay ect. If you have power in the black/tan wire (which you should not) this would indicate an open circuit on the ground side i.e resistor block, switch etc

captainwoot

The blower motor relay is behind the glove box. here is a wiring diagram , maybe this will help

Firestorm500

Sounds like your instrument panel blower motor switch is bad.

02ta

Where are these 2 wires located?

Btw thank you for the replies it at least gives me a starting point.

CCKen

Here's a diagram of the HVAC Blower circuit in your XJ (similar to captainwoot's), and a diagram of the Junction Block (JB) fuse panel for your XJ.

Note that the AC/Heater Control Panel fan speed switch controls the ground paths to the blower motor and the resistor circuits in the Resistor Block. And that power to the blower goes through the blower relay, pins 30 to 87. The blower relay control coil is activated when you turn the ignition key to RUN. If fuse F25 in the Junction Block is blown the relay will not close and power from fuse F6 in the PDC will not be available to the blower.

Check F25 in the JB.

As previously stated, the blower relay, shown on the diagram, is accessed by rolling down the glove box.

02ta

UPDATE*****

This morning on the way to work the blower decided it wanted to work. Its only working intermittently and I have tried to "recreate" the settings when it was working but Ive had no real luck. I bought a test light and I'm going to start chasing this thing. Would I be correct in saying its probably not a fuse because its now working intermittently?

02ta

oh yes and one more thing it sounds like the blower fan blade is in contact with something so I need to repull it and see whats going on there

02ta

Fuse 6 and 25 are both good.

02ta

Ok so I bought a new relay and still no joy(the part was 8 bucks, figured wth). The resistor block you are talking about is that the one in under/behind the glove box? If so I had already replaced that initially with the blower motor.

This is the relay I bought
http://shop.advanceautoparts.com/web...ir_18890997-p#

02ta

Alright guys so my buddy's mom friend is a mechanic here in the springs and he agreed to help me with the electrical troubleshooting. Any how we used the test light to check the relay, interior fuse panel, and PDC. All that is getting power. Any how I do have a question. The connector on the back side of the fan speed control should that not have any power to it? Does the mode selector have to be in an "on" position before it gets power? Currently the fan speed control is not receiving any power. Also does anyone have the electrical schematic that shows were the wiring for the ac control panel terminates or goes to?

Edit* in the schematic on the right hand side G108 what is that symbol indicating. Its not a ground from what Ive googled.

CCKen

That is a ground symbol in Jeep speak.

I think you found your problem when you said "sounds like the blower fan blade is in contact with something".

Me thinks the fan bird cage is dicked up.

Remove the blower assembly and inspect the cage and motor.

02ta

The blower is brand new, but I do need to see what it is making contact with.

Firestorm500

Did you bend the squirrel cage going back in?

freegdr

Heres your issue .....pull it back out bet it works ...