Skoda Fabia Steering assist inop

[japn]

Hi I have a skoda Fabia with a steering light on dash & heavy Electic PAS. in my opinion is a faulty Yaw sensor (Known Fault with these) but silly me did not write down the fault codes but came up with two faults as in low 15 singnal think was one of them but cannot remember the other, has anyone got any other info on diagnosing these,

also if yaw sensor is faultly I seem to remember new one needs calabrating, can this be done on a autocom CDP or will I need a vag.com cable and if so which cable do you recommend, will a import cable do

any help appreciated

[Loaded]

Without the fault codes you are gonna struggle to get any help.
Plug in a VCDS and tell us the fault codes.

[Ashraf6119]

Hi

The power steering fault code on those can be logged in some time for Low Voltage.

Have you tried to clear them and see if they come back.

For Calibrating or Adaption of Yaw Sensor the Auto-Com which i think its the same tool as Opus CMT that should be able to do the job.

If you still think of buying the VCDS Tool which is a very handy Tool worth having it........I personally Advice you to buy it from this site. its 100% Original Tool from here.


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Hope This Helps

Ash

[japn]

Hi there The two faults I am getting stored in the steering asist ecu are as follows:

566 electrohydraulic steering operating not feasable
1288 +30 steering asist

but I am sure I have seen alow voltage fault also and when looking at the live data at the steering angle, it does not change when turning the steering.

funny this vehicle has developed two other faults in the last two days
brakes went hard, found servo pipe split, I believe this was a problem on vw's they had a mod for this but does anyone know if a mod is available for skoda's too.

also Battery started going flat. did not have my multimeter today unfortunately but on diagnostic is showing 13.88 volts charging so assume is just the nine year old battery, have on charge at the moment as specific gravity was low on 4 of the cells

If anyone has ever coded in the yaw sensor on a Autocom CDP Pro could you please advise me how to do it as I can only see code ecu option.

as per vag.com cables is there a cheaper cable that the vcds that can code in yaw sensor, such as the 409.1 cable or one of the others do adaptions ect ect

please advise

[japn]

Any help appreciated

[samwrl]

Hello, My car is a 2000 Skoda Fabia 1.4 mpi and perhaps my experiences might be helpful to you.
The first fault I had was complete loss of power steering. After wasting money trying to get it diagnosed at a Skoda garage, I decided to try replacing the pump with a second hand unit. Surprisingly, this worked perfectly.
Some time later, the power steering once again became faulty. This time it wasn't total failure, but it felt lumpy and uneven. I took off the steering angle sensor and noticed that it was almost totally submerged in water, so decided to buy a new one which again cured the problem.
On both occasions, replacing the faulty part put out the warning light without the need to plug in any equipment.
Further investigation has shown that the angle sensor is very prone to getting wet on these cars. Surprisingly, the best way to protect it from water damage is to remove the sealing gasket as any water can then drain away.
I hope this helps.

[japn]

Hello, My car is a 2000 Skoda Fabia 1.4 mpi and perhaps my experiences might be helpful to you.
The first fault I had was complete loss of power steering. After wasting money trying to get it diagnosed at a Skoda garage, I decided to try replacing the pump with a second hand unit. Surprisingly, this worked perfectly.
Some time later, the power steering once again became faulty. This time it wasn't total failure, but it felt lumpy and uneven. I took off the steering angle sensor and noticed that it was almost totally submerged in water, so decided to buy a new one which again cured the problem.
On both occasions, replacing the faulty part put out the warning light without the need to plug in any equipment.
Further investigation has shown that the angle sensor is very prone to getting wet on these cars. Surprisingly, the best way to protect it from water damage is to remove the sealing gasket as any water can then drain away.
I hope this helps.

thanks for your post, samwrl, I am still trying to diagnose the fault properly, but today the mistery deepened as over a period of two days the battery goes completely flat, I traced the battery drain to a pulsating drain from fuse F3 (Mega) in the engine compartment, which according to my autodata is the Power steering fuse. so I am beguining to think that maybe the pump is faulty. I have removed this fuse for now to stop the battery going flat, where is the pump located on this Model (1.4 AQW Eng code) and have you or anyone reading this post have a wiring diagram for this system to tell me exactly how it is linked to the alternator, also a description of exactly how the system and its components work. also samwrl you mentioned that you fitted a new steering angle sensor, I was wondering how did you manage to code in the new steering angle sensor or did you not have too. kindest regards Joel

[japn]

any help appreciated

[samwrl]

Hello Joel,
The first thing to do is remove the steering angle (yaw) sensor which is located on the right side of the steering rack (left side if lhd).If it is soaking wet then you may have found the problem.
A faulty angle sensor normally puts the warning light on and makes the steering feel alternately stiff and then free.
In my case, replacing the sensor put out the warning light and restored the steering to perfect working order. No coding or plugging in of any equipment was needed, it worked straight out of the box.
You could try drying the old one overnight on a heater as this sometimes works.
When replacing the sensor don't refit the gasket, it really is better without it.
The power steering pump is located behind the left front
wheelarch liner.
Regarding your battery drain problem, all I can say is that in my limited experience a faulty alternator is a common cause.
Good luck, Sam.

[japn]

Thanks sam your input is very very helpful, The more you mention your experience the more I am leanining towards the pump, as previously mentioned the only way to stop the battery drain was to remove the mega fuse to what must be the pwr steering pump. the steering is heavy all the time and the +30 & +15 voltages are reading about 8.15volts (Not sure what a normal voltage would be but rekon battery voltage or 5volts for sensors) My friends experience was that he was climbing a multi storey car park whith loads of full lock corners when he herd a bang the the steering went heavy, if I get a chance tomorrow I will reconnect the mega fuse and disconnect the pump to see what happens, I do know that alternators are also common but this one seems to be charging well I will certainly remove and check out the yaw sensor also.

currently in the live data showing yaw angle @ 0 Deg. and no current draw from pump ect will update you with my results
regards Joel Thanks again

[autoelectric]

Hello m8
I had exactly the same problem with a skoda fabia last week.
As soon as i changed the power steering pump the problem was solved.
I thing that your car has tha same problem and the only solution is to change the power steering.
After i change it i opened the old one and i found in the electronic part of the steering pump two power transistors completely burned.

[japn]

cheers thanks I will definately look into the pump the next opotunity I get. will let you all know shortly