Register Login
Save up to 15% with Adrian Flux insurance!
Reply
 
Thread Tools
Old 4 Weeks Ago   #1
Join Date: Sep 2017
Posts: 42
Thanks: 5
Trader Rating: 0
United Kingdom 
Abs trouble

hi all. i have a panda 56 plate and have been having issues with abs.
the front sensors were replaced with new, then i found out about testing ohms, and the rear wasn't reading anything so i replaced these and still have the abs light on.
when testing the sensors the rear are 492 and 452 and the front are 452 and 352 ohms.
would these reading be normal? the 352 is the drivers side.
iv'e run out of ideas with this and would appreciate any help.
i replaced the faulty gearbox with one from a 52 plate punto about 3 months ago but i cant remember when this abs light came on.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Tizzywizzy1uk is offline Reply With Quote Quote 
Old 4 Weeks Ago   #2
Join Date: Apr 2011
Location: Near the M4
Posts: 19,940
Thanks: 710
Trader Rating: 0
varesecrazy has donated!
United Kingdom 
Re: Abs trouble

What error codes is it reading?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

varesecrazy is offline Reply With Quote Quote 
Old 4 Weeks Ago   #3
Join Date: Sep 2017
Posts: 42
Thanks: 5
Trader Rating: 0
United Kingdom 
Re: Abs trouble

The codes were something like, u500 u1600 I cleared them and no codes have come back only abs light..
The obi 11 said vehicle sensor. And that was it
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Tizzywizzy1uk is offline Reply With Quote Quote 
Old 4 Weeks Ago   #4
Join Date: Sep 2007
Location: Alkmaar, Netherlands
Posts: 1,536
Thanks: 84
Trader Rating: 0
Netherlands 
Re: Abs trouble

I'd check the one (and it's connectors) that reads 350 Ohms.

gr J
__________________
"Look for the ridiculous in everything and you will find it". - Jules Renard
A3jeroen is offline Reply With Quote Quote 
Old 4 Weeks Ago   #5
Join Date: Sep 2017
Posts: 42
Thanks: 5
Trader Rating: 0
United Kingdom 
Re: Abs trouble

Iíve checked the one that 352 ohms and connections and it still reads 352 and connection is good..
When this connection was removed the speedo didnít work or power steering but rev counter did. When the new sensor was put on everything worked apart from abs.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Tizzywizzy1uk is offline Reply With Quote Quote 
Old 4 Weeks Ago   #6
Join Date: Sep 2009
Posts: 14,169
Thanks: 690
Trader Rating: 0
United Kingdom 
Re: Abs trouble

You need a registered version of www.multiecuscan.net and a full OBD cables set.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

DaveMcT is online now Reply With Quote Quote 
Old 4 Weeks Ago   #7
Join Date: Sep 2017
Posts: 42
Thanks: 5
Trader Rating: 0
United Kingdom 
Re: Abs trouble

Because the vehicle is no longer registering any fault codes, would a Multiecuscan find the problem?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Tizzywizzy1uk is offline Reply With Quote Quote 
Old 4 Weeks Ago   #8
Join Date: Feb 2004
Location: Faringdon, Oxfordshire UK
Posts: 6,105
Thanks: 483
Trader Rating: 1
portland_bill has donated!
United Kingdom 
Re: Abs trouble

We may need some history before the ABS light first illuminated.
Had you only recently acquired the car, or had you had it a while?
Has anything else been replaced, adjusted or otherwise attended to?

Wheel bearings can sometimes be put in back to front, placing the ABS reluctor away from the sensor.
Testing the sensor may not show issues with wiring from there to the ECU.

MES should show specifically which corner is an issue, which can help focus one's attention. Jack up that side, spin the wheel and see if a signal is received. Might be an idea to compare with the other side if you can spin it at a similar speed.
Likes varesecrazy liked this post
__________________
13 years motor trade, 16 years motor industry. 14 years Driving Instructor & 7 years Fleet Trainer
Panda Alessi
portland_bill is offline Reply With Quote Quote 
Old 4 Weeks Ago   #9
Join Date: Oct 2016
Posts: 1,422
Thanks: 96
Trader Rating: 0
United Kingdom 
Re: Abs trouble

Quote Originally Posted by Tizzywizzy1uk View Post
Because the vehicle is no longer registering any fault codes, would a Multiecuscan find the problem?
you can plot the live data from each wheel simultaneously
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

koalar is offline Reply With Quote Quote 
Old 4 Weeks Ago   #10
Join Date: Oct 2016
Posts: 1,422
Thanks: 96
Trader Rating: 0
United Kingdom 
Re: Abs trouble

or you could set a multi meter to ac. Spin the wheel the faster it spins the higher the volts
Likes varesecrazy liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

koalar is offline Reply With Quote Quote 
Old 4 Weeks Ago   #11
Join Date: Sep 2017
Posts: 42
Thanks: 5
Trader Rating: 0
United Kingdom 
Wow, thanks for the suggestions..
I have a full set of cables and adapter on order, .. meanwhile Iíll do the other checks that have been suggested.
Iíll let you know how I get on.
Thank you!
Likes varesecrazy liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Tizzywizzy1uk is offline Reply With Quote Quote 
Old 3 Weeks Ago   #12
Join Date: Sep 2009
Posts: 14,169
Thanks: 690
Trader Rating: 0
United Kingdom 
Re: Abs trouble

The rear wheel bearings are supplied as a unit with hub. Fronts are replaced in the usual way. Non ABS type still exist.

The sensor side of the bearing (back when viewed from wheel bolts side) has a brown rubber disc stuck to the bearing seal. This carries the magnetic stripes that are sensed by the ABS pickup. You might be able to see them with a torch and small mirror.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by DaveMcT; 3 Weeks Ago at 09:57.
DaveMcT is online now Reply With Quote Quote 
Old 3 Weeks Ago   #13
Join Date: Oct 2016
Posts: 1,422
Thanks: 96
Trader Rating: 0
United Kingdom 
Re: Abs trouble

ABS data stream isn't on the normally OBDII pin


normally an adaptor cable is required to read and clear the codes


most generic car scan tools will not work.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

koalar is offline Reply With Quote Quote 
Old 3 Weeks Ago   #14
Join Date: Sep 2017
Posts: 42
Thanks: 5
Trader Rating: 0
United Kingdom 
Re: Abs trouble

Iíve had the car 3 years, i replaced the gearbox from a Punto car 3 months ago
All sensors have been replaced with new
Rear near side hub was replaced as the brown contact ring was perishing.
All other magnetic contacts are in very good condition as I checked all these whilst everything was stripped down to remove the old sensors
When car is started, the abs lamp goes out for around 5 seconds presumably to do its checks and comes back on permanently.
I tried the ac multimeter test whilst spinning the wheel but no current was displayed on all wheels.
The ohms readings are still the same as above.
Iíve cleaned up all negative cables I can find, took apart the ecu and found nothing noticeable, the abs unit cable and contacts are all fine as is the brake fluid cable.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Tizzywizzy1uk is offline Reply With Quote Quote 
Old 3 Weeks Ago   #15
Join Date: Feb 2004
Location: Faringdon, Oxfordshire UK
Posts: 6,105
Thanks: 483
Trader Rating: 1
portland_bill has donated!
United Kingdom 
Re: Abs trouble

Quote Originally Posted by Tizzywizzy1uk View Post
Rear near side hub was replaced as the brown contact ring was perishing.
Has the ABS problem begun immediately following this bearing replacement?
Early vehicles did not have ABS as they were introduced shortly before it became mandatory. If you've got a non-ABS bearing, you'll never get a signal.
__________________
13 years motor trade, 16 years motor industry. 14 years Driving Instructor & 7 years Fleet Trainer
Panda Alessi
portland_bill is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) 1.2 elx 8v no speedo, no abs light, abs kicking in... Trodai Punto (Mk2/2b) 4 11-09-2016 19:35
(T) punto abs. abs lights up but abs pump under bonnet!? spawn9076 Punto (Mk2/2b) 4 17-08-2014 12:37
(T) Engine trouble, heating trouble, everything trouble really! please help! barr182 Punto (Mk2/2b) 8 27-10-2010 23:38
(G) Mk2 Punto 1.2 8v 2000 - ABS or Non-ABS Brakes corky Punto (Mk2/2b) 3 19-09-2010 19:51
(T) ABS trouble & Lines on mileage display???? wheeler920 Marea 3 27-02-2009 22:54