Brakes: Another ABS thread.....

[El Padrino]

Originally Posted by Luxobarge

I can't share the wiring diagrams, it's a huge PDF file and I don't know how to do that. However, I downloaded it from a link on here somewhere ages ago, maybe someone has that link and can post it up again?

OK, so yes, I re-soldered ALL the pins you have circled in yellow, these are all the ones that go to the multi-plug and involve the power feed positive and negative (two pins for each) and the rest of the smaller ones are the feeds from the various sensors etc.

No need to do the ones circled in red, these are the feeds to the ABS pump motor, and are unlikely to be faulty. However, no actual harm in doing so as you're in there already, so long as your soldering skill is OK. On that subject, I only have a normal (temp controlled) soldering iron, nothing special, and didn't have a problem doing it, it's not that fiddly by modern electronics standards. I can very much recommend the use of fine guage leaded solder though, the modern lead-free solder is harder to use and requires more heat. Although it's not allowed, I bet there are ways of getting hold of leaded solder!

Hope that helps?

Hi Luxobarge, I've managed to get a copy of a 1998 V70 ABS wiring diagram now. On the soldering front, thanks for clarifying which ones you re-soldered. Did you remove the old solder first, then add fresh solder or did you just add more solder to the pins? I need to get a new soldering iron as my one is very very old. You can't change the tips on it or control the temperature. A new one will be useful for tackling other soldering jobs.