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Traction control

Mercurios2011

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#1
Morning and happy beginning of summer yall..
To keep it simple, came back from vacation, fire here up as usual make sure all is good before going back to work next day,and this what i got. Already check fuses and relays ,latee weather permit tear into the front end to look for nicked wires or maybe dirt stuck somewhere, before I even consider the module, any suggestions, thanks in advance
 

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Mercurios2011

Mercurios2011

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Thread Starter #2
Morning and happy beginning of summer yall..
To keep it simple, came back from vacation, fire here up as usual make sure all is good before going back to work next day,and this what i got. Already check fuses and relays ,latee weather permit tear into the front end to look for nicked wires or maybe dirt stuck somewhere, before I even consider the module, any suggestions, thanks in advance
Yes ,I need to go pick up my scanner too ..😅
 

Handy Andy

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#3
Might not be a bad idea to check Fluid levels too.

Why? Brake fluid and Tranny fluid and their dirt and those solenoids - else if it was a bad wheel sensor - it would also set ABS and even Check Engine Light.

So this may be a output sensor related to the transmission (Speed sensor) or something in the kick-panels and their gargantuan connector headers...
 
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Mercurios2011

Mercurios2011

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Thread Starter #4
The system was bled when I did the clutch pedal and same week later re bled the brake system, now I can really tell the difference on the hawk pads that been there for a min x)..

I just finished ,taking the abs sensor out and clean them,however i believe they are supposed to have a degree of magnetism, and non of em did at all.. least not where they pick up the read.

Before i even jump into module i will check into the trans sensor like you suggested, and if and thats big if comes down to that ,I have 2 options re flash the car and turn off traction from the pcm or get a race module which essentially does the same turns traction control off x'D , I don't mind not having it ,is the dam light on the cluster that bothers me..

I have the same issue on a 2010 Expedition and that has all wheel bearings replaced, steering sensor, and the module as well ,all fuses are good and relays ,it pull the Rv with zero issues, cruise control works and breaks flawless, but the damn cluster looks like a Christmas tree,abs ,brake,tc and now faulty TPMS 😒, I did read somewhere that sometimes a worn out rack may cause it too ,but that thing is solid from end to end..so idk
 

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Mercurios2011

Mercurios2011

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Messages
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interlachen
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FL
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United States
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2011 fiesta se 5spd
Thread Starter #5
The system was bled when I did the clutch pedal and same week later re bled the brake system, now I can really tell the difference on the hawk pads that been there for a min x)..

I just finished ,taking the abs sensor out and clean them,however i believe they are supposed to have a degree of magnetism, and non of em did at all.. least not where they pick up the read.

Before i even jump into module i will check into the trans sensor like you suggested, and if and thats big if comes down to that ,I have 2 options re flash the car and turn off traction from the pcm or get a race module which essentially does the same turns traction control off x'D , I don't mind not having it ,is the dam light on the cluster that bothers me..

I have the same issue on a 2010 Expedition and that has all wheel bearings replaced, steering sensor, and the module as well ,all fuses are good and relays ,it pull the Rv with zero issues, cruise control works and breaks flawless, but the damn cluster looks like a Christmas tree,abs ,brake,tc and now faulty TPMS 😒, I did read somewhere that sometimes a worn out rack may cause it too ,but that thing is solid from end to end..so idk
I however order a new scan tool that supposedly reads abs systems in dept as well as other modules ,we will see what we can learn from it ,I'll try post a video once i get it hooked up ,maybe help someone else in the future
 

Handy Andy

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#6
To turn on the TRAC Control light - the logic to the ABS or from the ABS to the PCM is being determined to corrupt.

The Word - "Corrupt" is left open for interpretation - as in what or where in the modules is this determined?

So to me this just might be more of a wiring or poor ground issue where the harness - the socket and plug at the ABS unit - or a ground bond point for it is bad. There is also the opposite effect - poor power delivery can also have an impact on this condition, as in not enough power so the signal sent and the signal returned are compared and noise is found - so it thinks its' corrupt - it can't analyze noise - but it can certainly see a loop return and know the difference between clean signal and poor signal - so I can see where "Corrupt" can be used to tell the tech that something is wrong - you need to fix it, I can't.

Got any way to backprobe the harness? IF it's not the fuse, remember the Fuse block itself then routes that power TO the Brakes - and also from that Brake Module - the power goes to the speed sensor (Speedo).

Why am I saying this? My car - is also having issues with the Oxides of March - which as seasons change the corrosion and oxides formed from it - are also eating at my wiring - especially in the Engine Bay - where my OEM battery had a top post seal leak and dripped - sprayed acid in and around the engine - so be aware of the Fuseblock and it is not truly sealed from the environment in the engine bay - it too does have issues with wiring off the crimped pinch-point spots where the Fuse is, not just FROM the battery or POWER side - but TO DELIVER power to the components from the branch that Fuse it's supposed to protect - not just Ground - Power feeds too..

You can find, that; as you drive - the ABS sill self test once you start to drive off, and if it has problems making the solenoids work right during that self-test check - BAM! - it sets the light on the dash...The issue of my battery and all those post-to-block to breakout adapters for terminals and all their internal fusing - helped me to track down some of those quirks - just offering my experience to you so you don't have to suffer like I did.
 


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