2016 GTS 300 ABS light
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colosseo
Wed, 08 Mar 2023 22:54:26 +0000
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colosseo
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Wed, 08 Mar 2023 22:54:26 +0000 quote
Hello,

Speedo is not working, ABS EFI and ABS lights stay on. What can cause it.

Thanks

Last edited by colosseo on Thu, 16 Mar 2023 21:57:14 +0000; edited 1 time
SteelBytes
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SteelBytes
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Thu, 09 Mar 2023 01:45:55 +0000 quote
on an GTS with ABS the speedo is driven by the real wheel speed sensor via the ABS.

Did you have the rear tire changed recently? ....

The speed ring / tone wheel on the rear could have become bent. Or the sensor for it might not have been installed correctly (apparently if the washers for the screw are missing that can cause problems as the spacing will be wrong?). Of course could also be any of the related wiring but less likely.
CrackedEgg
Thu, 09 Mar 2023 01:53:48 +0000
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CrackedEgg
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Thu, 09 Mar 2023 01:53:48 +0000 quote
Look at the this senor and wiring and the speed ring for something wrong.



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colosseo
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Thu, 09 Mar 2023 06:45:01 +0000 quote
Pic





SteelBytes
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SteelBytes
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Thu, 09 Mar 2023 07:28:28 +0000 quote
colosseo wrote:
Pic
With that in place what is the gap to the slotted tone abs wheel AND is that a consistent gap as you rotate the wheel ALL the way around.

PS were there any washers when you took the screw out?

AND as I asked, has the rear tire been replaced recently?
CrackedEgg
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CrackedEgg
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Thu, 09 Mar 2023 16:57:00 +0000 quote
Anyone know if an ASR calibration would fix op's problem?
SteelBytes
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Thu, 09 Mar 2023 21:46:44 +0000 quote
CrackedEgg wrote:
Anyone know if an ASR calibration would fix op's problem?
nope.

asr wouldn't cause abs light or speedo issues. (although the opposite of abs light causing asr issue is possible)
Positive
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colosseo
Tue, 14 Mar 2023 06:23:21 +0000
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Tue, 14 Mar 2023 06:23:21 +0000 quote
Few more pictures
Is the distance for the sensor to wheel in pic 2 correct?
Thanks







SteelBytes
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Tue, 14 Mar 2023 07:51:59 +0000 quote
colosseo wrote:
Few more pictures
Is the distance for the sensor to wheel in pic 2 correct?
Thanks
Looks about the same as mine.

Have you checked the fuse for the ABS unit?
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Tue, 14 Mar 2023 09:44:40 +0000 quote
Which one is the fuse for the ABS? The ones in the glove box and by the battery are good.
CrackedEgg
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CrackedEgg
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Wed, 15 Mar 2023 20:46:23 +0000 quote
Measured my abs sensor gab in 3 different spots rotating the wheel. 2 spots it fit and 1 spot it didn't. 0.787mm seemed liked the best guesstimate. I wonder what the spec is supposed to be?



SteelBytes
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Wed, 15 Mar 2023 22:11:59 +0000 quote
CrackedEgg wrote:
Measured my abs sensor gab in 3 different spots rotating the wheel. 2 spots it fit and 1 spot it didn't. 0.787mm seemed liked the best guesstimate. I wonder what the spec is supposed to be?
Workshop manual says

Sensor distance - tone wheel
> 0.8mm
Positive
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Wed, 15 Mar 2023 22:18:26 +0000 quote
Few more pics











SteelBytes
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Wed, 15 Mar 2023 22:23:33 +0000 quote
I don't think it's the tone wheel or sensor anymore (now that you've recently shown enough pics etc.)

I'm thinking it's the ABS unit itself is not happy (as @greaasy said) or wiring somewhere between the ABS and the sensor.
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colosseo
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Wed, 15 Mar 2023 22:31:31 +0000 quote
Is this the part?





SteelBytes
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Wed, 15 Mar 2023 22:34:52 +0000 quote
colosseo wrote:
Is this the part?
yes that is an ABS unit. can't confirm the part number is suitable from those pics
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colosseo
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Thu, 16 Mar 2023 21:53:56 +0000 quote
Ok, here are pics of the ABS unit (if mean anything)
Thanks











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colosseo
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Thu, 16 Mar 2023 21:56:25 +0000 quote
Just noticed this; means anything



SteelBytes
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Thu, 16 Mar 2023 22:06:17 +0000 quote
colosseo wrote:
Ok, here are pics of the ABS unit (if mean anything)
Thanks
that shows the part number 1C001630

I'm not sure the difference between that 1C001631 which I see in the parts manual
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colosseo
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Thu, 16 Mar 2023 22:11:05 +0000 quote
And the other side



GermanGTSDriver
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Thu, 16 Mar 2023 22:13:39 +0000 quote
As far as I know: A new ABS unit must be taught-in: PADS is required…
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colosseo
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Thu, 16 Mar 2023 22:13:39 +0000 quote
How to test if it's bad?
GermanGTSDriver
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Thu, 16 Mar 2023 22:20:46 +0000 quote
1C001630 seems no longer available from Piaggio. In none of the online stores you can find anything about it or it can not be ordered...

See also:
2015 GTS300 ABS pump 1631 / 1630 Compatibility status
SteelBytes
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Thu, 16 Mar 2023 22:28:54 +0000 quote
GermanGTSDriver wrote:
As far as I know: A new ABS unit must be taught-in: PADS is required…
I think you're wrong*. reading the hpe manual for replacing the abs unit (very detailed instructions) it does not mention pads software.


* unusual

Last edited by SteelBytes on Thu, 16 Mar 2023 22:42:19 +0000; edited 2 times
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colosseo
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colosseo
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Thu, 16 Mar 2023 22:31:50 +0000 quote
Few available used
GermanGTSDriver
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Thu, 16 Mar 2023 23:05:03 +0000 quote
SteelBytes wrote:
I think you're wrong*. reading the hpe manual for replacing the abs unit (very detailed instructions) it does not mention pads software.


* unusual
"ATTENTION !

The installation and programming of the control unit must be carried out by a Piaggio workshop."

https://www.scooter-center.com/en/control-unit-abs-piaggio-vespa-gts-125-zapma3100-vespa-gts-150-zapma3200-zapma3100-vespa-gts-300-zapm45200-zapm45202-zapma3300-vespa-gts-super-125-zapm45300-zapma3100-zapm45301-vespa-gts-super-300-zapm45200-zapm45202-zapma3300-gp1c001631

From this I concluded that programming with PADS would be necessary. What else could be meant here?

*2016 is non-hpe
SteelBytes
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Thu, 16 Mar 2023 23:22:03 +0000 quote
GermanGTSDriver wrote:
The installation and programming of the control unit must be carried out by a Piaggio workshop
scooter center also says that for the part number for the HPE 1C002747

yet the manual doesn't ...
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colosseo
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Thu, 16 Mar 2023 23:42:11 +0000 quote
It's not a HPE
SteelBytes
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Thu, 16 Mar 2023 23:43:27 +0000 quote
colosseo wrote:
It's not a HPE
we know, but please read carefully what has been said
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