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error code

PostPosted: Fri Dec 13, 2013 4:11 pm
by ian1965
My subaru has come up with an error on my local garages diagnostic equipment, brake boost pressure sensor error. They can reset it but every time you touch the brakes it comes back on again, has anyone any idears please. Cheers Ian

Re: error code

PostPosted: Fri Dec 13, 2013 7:55 pm
by SteveS
ian1965 wrote:My subaru has come up with an error on my local garages diagnostic equipment, brake boost pressure sensor error. They can reset it but every time you touch the brakes it comes back on again, has anyone any idears please. Cheers Ian


What code do you get mate?

Re: error code

PostPosted: Sat Dec 14, 2013 11:01 am
by ian1965
P0558

Re: error code

PostPosted: Sat Dec 14, 2013 11:14 am
by SteveS
Wiring short to positive

Brake boost pressure sensor

Or ECM

According to Autodata

Re: error code

PostPosted: Wed May 28, 2014 9:15 am
by Alastair_H
With a bit of searching around I have found some other information saying this is a Subaru reserved code and "P0558 = Alternator Circuit Low" this may have something to do with the replacement alternator being supplied. Both alternator's apparently have 3 pin plugs the one marked C- S (has a dummy pin) and the one marked C - S - L is the correct item. Current output levels may be different, will investigate further.

Re: error code

PostPosted: Wed May 28, 2014 11:50 am
by weirdfish
So has the error code come up since you had the new alternator fitted?