Wierd ABS Issue - Page 2

Laird Scooby · Nov 15th, 2020, 16:31

Quote:

Originally Posted by VOLVOBOY

Live bleeding can also destroy the modulator block and/or ECU on some systems so check carefully before live bleeding!

Any idea which it is on P2`s ; whether you can or not ? I`m not sure.

Not sure to be honest, i'd have a look in the relevant Green Book to see what that says about brake bleeding or consult a Volvo dealer/specialist. They're a bit too new for me to know much on them i'm afraid.

Maybe someone else will be along soon with the exact knowledge, if i was doing it i'd try normal bleeding first as that is usually fairly safe but better to find out for sure.

VOLVOBOY · Nov 15th, 2020, 17:35

Bit of research seems to suggest..
Engine on is not required.
Ign. On not necessary but does spin the ABS pump and so aids bleeding if a straightforward bleed proves problematic. ( I guess this depends on how far back the system has been dismantled/drained)
The ABS pump can be cycled when using VIDA.
To use a low pressure bleeder and work from shortest to longest run.

So, to the OP...
1. Check the module connectors for fit , corrosion , bent pins etc and also the ABS relay.
2. Check the sensors , reluctor rings.
3. Replace the brake fluid.

Nov 15th, 2020, 17:35	#12
VOLVOBOY Lazy Member Last Online: Today 15:54 Join Date: Mar 2007 Location: HORLEY	Bit of research seems to suggest.. Engine on is not required. Ign. On not necessary but does spin the ABS pump and so aids bleeding if a straightforward bleed proves problematic. ( I guess this depends on how far back the system has been dismantled/drained) The ABS pump can be cycled when using VIDA. To use a low pressure bleeder and work from shortest to longest run. So, to the OP... 1. Check the module connectors for fit , corrosion , bent pins etc and also the ABS relay. 2. Check the sensors , reluctor rings. 3. Replace the brake fluid.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)