23952 ABS sensor fault - 2010 GSA

Deleted account 230327001 · Jan 15, 2020

So the warning light doesn’t go out after a short ride. Brakes all fine otherwise but no ABS.

Using my GS-911wifi, I have performed all the functionality checks on the ABS system, can hear the motor running, can hear each valve actuating as it should.

Weirdly, the front speed sensor is showing something like 4000mph! The rear shoes 0mph and increases as I turn the wheel slowly. Turning the front wheel by hand has no effect on the speed sensor reading. See below picture for what I mean!

Any help appreciated still!

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botus · Jan 16, 2020

and if you swap the two inputs over does the fault move to the other wheel?

Deleted account 230327001 · Jan 16, 2020

botus said:
and if you swap the two inputs over does the fault move to the other wheel?

Nope. I’m thinking it’s a new sensor I’ve put on the front and no change to the fault therefore it might be something from the sensor connection to the ABs controller or ECU???

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botus · Jan 17, 2020

do you mean

llekra said:
Nope. I’m thinking it’s THE new sensor

if you put the old front sensor in the back ECU input, does it start to behave?

Deleted account 230327001 · Jan 17, 2020

No I replaced the front sensor with a brand new one, therefore think the problem is somewhere between the sensor connection and the rest of the ABS electrics....

Cannot replicate the problem with the rear by swapping sensors

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botus · Jan 18, 2020

what happens if you use the old front and the new sensor.... I still think is a break in the wire to the rear sensor (that's the designed in fault they all have)

Deleted account 230327001 · Apr 22, 2020

Absolutely no idea where to go with this issue now.

Should the battery voltage above be zero?

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23952 ABS sensor fault - 2010 GSA

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