Do it yourself ABS module repair. Topic is solved

Post by **Matty Moo** » 03 Jan 2010, 11:08

Did mine today. Works like a charm. I'd say getting the case open is the hardest part. Don't be afraid of putting some heat on those pins. They can take it.

Replacing it wasn't as hard as I thought. I have big hands and only had to move the airbox out of the way. I didn't have to disconnect the air hose where it meets the turbo. I have a e-5, but used the 5/32 as it's shorter and easier to maneuver.

Any novice solderer can do this. If you doubt yourself, get a junkyard unit and work on that.

Post by **marginal** » 03 Jan 2010, 11:13

I agree with you fattymatty.
But, let's see how reliable is our repair.
Let's not forget, all of our ABS modules have worked for a certain period of time, after what, the solder joint has cracked.
Time will tell.

Thyrome · Post by **Thyrome** » 03 Jan 2010, 17:50

Hello everyone,

I have a 1993 850 Turbo and I started the ABS repair today,
since both my ABS and Tracs lights randomly turned on and stayed on.
Sometimes immediately sometimes after 1 hour of driving.

I detached the airfilter box and had a E5 handy when I couldn t finde the ABS module.

Is there a way that the ABS module looks different in the Turbo version ?
Can anyone with a 850 Turbo please tell me where to find it ?

thanks,
Christian

Post by **Ozark Lee** » 03 Jan 2010, 18:06

The 1993 module is a totally different animal than the '96 and on module and the module itself normally doesn't fail. That said, the rings on the C/V joints in the front and the hubs on the back can get filled with junk and cause errors.

Pull the codes from port A-3 and post them back.

The codes are your friend here.

...Lee

Post by **marginal** » 03 Jan 2010, 18:07

Hi Thyrome, I have an 850 turbo, no Tracks though.
I believe all the ABS modules are located at the same place on our cars, even on newer models like the S40 ...
So, look under the aluminum block, it's nkind of hidden, take a look at this picture: http://www.bba-reman.com/images/volvo_abs_removal_1.jpg

Good luck.

Thyrome · Post by **Thyrome** » 03 Jan 2010, 18:18

just getting into the volvos. I ll read the codes 2morrow and I shall be back

thanks

Rb_newsletter · Post by **Rb_newsletter** » 03 Jan 2010, 21:37

I have a 2000 Volvo S70 GLT SE. I removed my ABS unit today, opened it, and re-soldered the connections. Two things I found were
1) I didn't see any grip washers outside the box
2) I didn't see any silicone covering the pcb inside the box.
Are those missing or is it like that in this car model?

After soldering I fixed the unit back without silicone seal for testing purpose. I still see the check engine light on. However, ABS and Tracs lights are gone; but those lights are always intermittent, only check engine light was on always. I tried driving around in freeway for 20 minutes, but no use, still check engine light is on.

Is there a way I can reset the check engine lights myself? I tried searching the forums but could not find anything.

Post by **Ozark Lee** » 03 Jan 2010, 23:00

For the check engine light get the codes read from the OBD-II port and post the code numbers back, they are completely different systems. It does sound like your ABS/Tracs is fixed though!

...Lee

fatboy · Post by **fatboy** » 04 Jan 2010, 12:27

I must say wow.

I am having the similar problem. ABS light and the track off lights comes on and goes off once a while. it might stay about 5 min onn and goes off and might come again in another few min.

After reading all these stuffs I think my problem also the ABS module. I am going to start the job right now. can you guys say some thin to my problem

mine is 98 volvo s70.

will uppdate the pics later when the module is taken apart

Post by **marginal** » 04 Jan 2010, 12:39

All I can say is, you should be able to see the cracks in the solder joint on the two big (power suply) contacts with a magnifying glass.

Good luck.

Do it yourself ABS module repair. Topic is solved

Re: Do it yourself ABS module repair.