Brake Control Module location

techalum · Post by **techalum** » 10 Aug 2012, 16:15

The dealer diagnosed my car with having a bad BCM. I get the typical brake failure lights as well as the non functioning odometer and cruise control. Obviouisly, they want a king's ransom to replace it. I found out about xemodex on this site and need to know where the BCM is located and how to remove it.

Can anyone share any diagrams/instructions?

My vehicle is a 2004 XC90 AWD T6

Thanks,
Techalum

Post by **jimmy57** » 10 Aug 2012, 19:49

In front of the driver just behind and below that fusebox. The module has a connector that requires you remove the fusebox. The fusebox has two bolts and a couple of tabs that dock into a bracket. One of the bolts is hidden below the heavy cables on the post at back of box. Disconnect battery and remove the cables and you'll see the bolt down in a hole. The other bolt is at the front of the box just under the edge of the air cleaner assembly.
The module is attached with 4 torx male head bolts. I think E5 size. The bolts come off the bottom. You'll cuss if you never have before in your life before you're done.

techalum · Post by **techalum** » 12 Aug 2012, 10:39

jimmy57 wrote:In front of the driver just behind and below that fusebox. The module has a connector that requires you remove the fusebox. The fusebox has two bolts and a couple of tabs that dock into a bracket. One of the bolts is hidden below the heavy cables on the post at back of box. Disconnect battery and remove the cables and you'll see the bolt down in a hole. The other bolt is at the front of the box just under the edge of the air cleaner assembly.
The module is attached with 4 torx male head bolts. I think E5 size. The bolts come off the bottom. You'll cuss if you never have before in your life before you're done.

I see it. Looks like it is under a part that looks like brake fluid may go through. Are you using a Torx socket? Looks like that would be the best option.

Flip07 · Post by **Flip07** » 29 Aug 2012, 01:16

I am also driving a 200 XC90 T5 with an Anti-skid Service light which was diagnosed by my dealer as a bad BCM. Long story about my disgust with this issue. The light has been coming on since mile 1,000 off and on and I claim that means it was identified during the warranty. Volvo objects to that and insists I pay the $1800 BCM chip. So, I went on a quest to solve the problem through other sources, but due to Volvo's clever means to lock maintenance in house I was told that the chip has to be installed by Volvo. Other model vehicles you could get away with replacing the chip or having it serviced through outsourcing. If you fix this by other means outside Volvo, please post how you circumnavigated the Volvo system.

gabwebsite · Post by **gabwebsite** » 15 Dec 2014, 13:44

I really want to thanks jimmy57 for his post , it helped me a lot since I'm not a mechanic. I would like to help other people who come on this thread thru google .

Pictures are from my 2005 V70 R 6SPD with DSTC

1. Disconnect the battery
2. Move fusebox :

3. Disconnect harness from BCM by lifting carefully the cap , the lock will slide and connector will pop out automatically

4. I choose to remove the airbox since it give much more space to access the bolts . Here's a view of the 3 screws that need to be removed

5. I put something in the intake and a plastic bag on the connector just to prevent

Good luck