ABSII Error code 7: ABS control unit

[Two wheels good]

ABSII Error code 7: ABS control unit

2002 R1150gs ABSII i.e not servo

I've read that many owners have cured ABS errors by removing the plungers and cleaning the chambers. But none I've read mention the error code that was present.
Is this procedure likely to clear Error Code 7. ABS control unit?
It seems more relevant to Error Codes 1,2 and 13, 16.
Any other repair to consider for Error code 7 - if the plunger clean fails?

Thanks
Error codes:
1 front pressure modulator
2. rear pressure modulator
3. front wheel speed sensor
4. rear wheel speed sensor
5. battery voltage too low
6. ABS relay, incorrect coding
7. ABS control unit
8. sensor gap front or rear, or other outside influence
9. <unknown, but seems to exist>
13. Failed plunger test ABS2
16. Failed plunger test ABS2

 

[squibb34]

Have you checked out this thread? ............ https://www.ukgser.com/forums/showthread.php/560917-R1150GS-ABS-II-Fault

 

[Two wheels good]

Have you checked out this thread? ............ https://www.ukgser.com/forums/showthread.php/560917-R1150GS-ABS-II-Fault

Thanks. Yes, I even posted in it!
Rewiring to modifyi the test sequence didn't seem relevant to my error. But I'll have a closer read.
[Edit] Not encouraging. This from Dr F. "If I recall correctly Code 7 is usually a naffed unit to be honest !"

My ABS bulbs flash in the standard manner. The error code resets successfully but then returns on riding off, without any accompanying familiar "klunk".
Battery voltage isn't suspect but I haven't ruled it out completely. I assume I can rely that would throw error code 5
Fluid changed within the past 12 months.

 

[squibb34]

Thanks. Yes, I even posted in it!
Rewiring to modifyi the test sequence didn't seem relevant to my error. But I'll have a closer read.
My ABS bulbs flash in the standard manner. The error code resets successfully but then returns on riding off, without any accompanying familiar "klunk".
Battery voltage isn't suspect but I haven't ruled it out completely. I assume I can rely that would throw error code 5
Fluid changed within the past 12 months.

So, what actually happens if you give the brakes a good thrashing, somewhere safe obvs? Just to be sure that it's not the battery either run the bike for a while, checking voltage with a meter before moving off, or maybe get the battery CCA tested, just to eliminate that from the fault find.

Some say, if you are on the original brake lines, then it could be debris lurking in the system, whatever brake fluid change regime has been followed.

 

[Two wheels good]

I didn't actually think of hitting the anchors as a test. Easy to activate the rear.
I've ridden approx 400 miles with the fault. No change after a fast run that should have charged the battery. But yeah, a battery test needed.
Braided hoses fitted ages ago.
I'll clutch at straws and clean the plungers anyway. And see about checking the relay on the unit.

If I have to live with a failed ABS I may as well get a newer model and remove the servo! Joking, too attached my GS.

 

[nicholsonj2252]

£295 for a secondhand replacement unit with 6 months guarantee from Motorworks

https://www.motorworks.co.uk/abs-hydro-control-unit-brt31637-3.html

Sent from my iPad using Tapatalk

 

[Two wheels good]

Plus local VAT and import due to Brexit unfortunately.
Besides, my experience of MW's secondhand parts and guarantees is not encouraging.
But I suspect a secondhand unit could be the likely outcome. Can't complain after 20yrs and 160k miles I suppose.

 

[squibb34]

Whilst they pitch for car ABS repairs, it might be worth talking to these guys as they are on your doorstep ......... http://freestorm.ie/

 

[Two wheels good]

Whilst they pitch for car ABS repairs, it might be worth talking to these guys as they are on your doorstep ......... http://freestorm.ie/

Good find! Thanks. I'll still give the plunger clean a go myself first I think.
The update is .. after resetting it twice and the bike unused for a few days the error didn't recur last time I was out. Only a matter of time I expect.
Maybe it was my offhand comment about trading it in for a younger model. It decided to shape up.