ESP and ABS fault lights - Yaw rate sensor

T

Tontonly

Member
Hi, on my bro's A2 he has a fault code as follows and ESP and ABS lights are lit on the dash.

01542 - Yaw rate sensor (G202)
57-00 electric circuit failure

So my query is where is this sensor located on the A2? ( its the 1.4 petrol if it makes any difference).

No google result on its location
Anyone else had/have this fault before?

Regards
Tony
 
ha ha, Damn thats quick! Nice one thanks Spike.
I kinda searched on here too but on my mobile and probably not the correct tags so didn't see that one.

Thanks again
 
Hi would you know if the g202 sensor is actually at the gear stick area.
Looked at the diagram but not clear.

I took some of the centre console off by the gear stick could'nt see the sensor.

Also is there a step by step guide to removing the plastics in this area, I don't want to use brute force!

Thanks
 
I can't find the sensors!
I took off the centre console and all there is looks a ecu looking module with a big yellow plug by the hand brake.

ELSWIN says its there so should be right!
 
Found the sensors! they are actually next to the drivers foot rest.

For future reference I'm pretty sure you don't need to take off all of the centre console for this job. Just the one cover next to the drivers foot rest.

The 'ecu' type module is the Airbag sensor so lucky I didn't drop a hammer on it then. But I did disconnect it so now I have the airbag light on :rolleyes:

So now I just need to 'borrow' the G202 from my wifes A2 to test in my brothers A2, when the wifes not looking of course :D
 
Im not sure if Im correct here, but originally there were two separate sensors, mounted in that location for ESP, but according to ETKA this was changed to a combi sensor, which contains both and the individual ones can no longer be purchased!!!

John
 
I forgot to update the thread. The one with the G202 error is a Y reg 2000 car and G200 and G202 are separate. And my Missus has a 02 car and it has the combined sensor so didn't take it completely off to test as it looked like the connectors are different.
 
Yer they are.

What i was trying to say was that if your older car with the double sensors has a problem and one needs replacing, I dont think you can do that as they are not made anymore, according to the latest ETKA that is, so you would have to buy a combi sensor to replace them.

John
 
So is it interchangerable? with the combi and separate?
With the same connectors I mean or would a rewire be in order?
 
Cant answer that one.

Mine has a combi one and it has one connector.

You could always ring up the local stealership and give them the part no. as they can then tell you if the part is no longer made.

John
 
Tontonly said:
I forgot to update the thread. The one with the G202 error is a Y reg 2000 car and G200 and G202 are separate. And my Missus has a 02 car and it has the combined sensor so didn't take it completely off to test as it looked like the connectors are different.
Click to expand...

I recently had a problem with the yaw sensor which seemed to coincide with a flat battery. After clearing the fault codes for a second time I checked the yaw sensor function using VagCom. The sensor output changed as the car was rocked side to side then zeroed as the movement stopped. Touch wood, the faults have not re-appeared. My 2001 car has the seperate sensors so for future reference I checked with Teesside Audi on the price of a new part. They used the chassis number to check the specific part on my car and quoted £430. There was no suggestion the sensor was obsolete or the replacement would be a combined sensor with wiring implications.
Let us know how you get on.

Cheers Spike
 
ESP and ABS fault light - Yaw rate sensor / LOCATION / REMOVAL /

Hi all,

This issue had been nagging me for a few months with trusty ole 'Johnson' in the fact that after about 2 miles the ASR / ABS / and (!) light up the dashboard with the sound of 3 sharps blasts on the ships whistle!

So took it into my Audi Specialist in Hertfordshire who ran a test on it and determined that there was a fault with the 'Lateral sensor' on the car. After a quick look on his A2 manuals we found the part number, and a few moments later I found a spare part on ebay. The sensor is located under either of the front seats (large coil of cables disappear into the carpet under a central beam) the sensor is just there.

So a week later I had the car booked in to have the seats out and the sensor fitted. Alas, all was going so well up to this point when I had a call to say 'You don't have any sensor there!, theres nothing there at all!... I can't find it!'

It seemed that my 'first year of production' model was indeed one that was not to follow suit with its future cousins!

Some more VAGCOM tests established that I had a Yaw Lateral Acceleration Sensor that may be the issue for the fault (G202 / G200 - Not sure if that helps?) but it meant I had to start from square one. I was told the sensor was somewhere in the dashboard. mmmm, specific! After a little research on here, indeed it was. In the central console area near to the drivers foot rest. So after another afternoon on ebay and some serious savings on the Audi price, I was able to locate, remove, replace and to this day (fingers crossed!) benefit from no more lights and beeps. So enclosed are some pictures of where you may locate yours should you get any problems with the same issue.

First undo the screw locking the driver foot rest in place.

Pic 1 / 2 - Then remove the side panels to the central console.

Pic 3 - Just at the base of the foot rest, within the console you will see 2 plug units plugged into 2 seperate devices. These are the 2 seperate sensors (obviously different on newer models) They are 'shielded' by a large black cover. remove this by undoing the two bolts that you can now access from both sides of the exposed console.

Pic 4 - Once removed you can then release the Larger unit, part number 1J0907657A (this was the faulty part on mine) and then replace.

Refitting is just the reverse.

Hope this helps anyone else who has the same year A2 as mine and is having similar problems.

BTW, the above part is about £450 from Audi. It certainly wasn't from eBay!
 

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Just changed the G202 yaw rate sensor on my 2001 TDi using DarrenM's guide which was very helpful.

To remove the centre console side panels I found it easiest to fold the carpet back and start at the bottom corner (by the seat runner) and gently pull the panel.
For the footrest, in addition to the locating screw it is held in place by plastic clips. The footrest needs to be slid upwards (away from the carpet) to release these.
After undoing the two nuts on the yaw and accel sensor bracket I had to prise the bracket up as it was 'stuck' on some black bitumen sound deadening material.

No calibration is needed for the G202 yaw sensor but is required for the G200 accel sensor if this is changed. This also applies to replacement the later combined G200 / G202 sensor.

Cheers Spike

PS. for reference, calibration of the G200 accel sensor simply requires the car to be on level ground and the sensor zeroed using VagCom (reading is 0.00 m/sec2)
 
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Thought I'd break my silence with some useful information I've just found...

Despite my local Audi dealer adopting the seemingly now widespread "we don't give out part numbers" approach, I've managed to combine their answers with some of my own research - mainly from this thread - and experience.

Our little A2 has a the ABS warning lamp on and has subsequently failed her MOT. The code readings were as follows:

606 YAW RATE SENSOR
01117 RHF SPEED SENSOR
046A ABS MODE SIGNAL
0606 YAW RATE SIGNAL

So I've dispatched her to a local garage to get the ABS sensor and/or bearing changed as I don't have the time at the moment. I also ordered, on the strength of the posts above, what I believe to be a combination sensor - part number 7E0907655A - and, well, still no joy. The new unit is much larger than the original, has a four-pin connection when the original is expecting three and the plug position is such that the original wire won't really fit without excessive pulling. Fitting the new sensor has not cleared the 606 fault code.

The story is a bit ongoing, as I've not had a resolution yet - but the interesting thing I found is that Audi do still stock the separate yaw rate sensors and they're currently in stock at their warehouse. They've got a hefty £560-odd price tag, but that's not my point - what I'm saying is that newer combination sensors do not seem to work on the earlier vehicles, if this happens to you it seems the solution is to replace the original yaw sensor with another single item.

Will update when I've got a resolution, if anyone's still speaking to me ;)
 
The update to this was that a replacement yaw sensor from a TT Mk1 solved the issue, for a reasonable £160. Well, I say reasonable, when the car it came from was probably only worth what it cost to weigh in it was a little galling, but that's capitalism eh? The fitting was 20 minutes or so.

With regard to the ABS sensor fault, turns out the wheels I've been running had fouled the wiring and sliced the insulation leading to the sensor - so a quick bit of silicone sealant and there's been no fault codes thrown up since.

Considering 17x8" rims are on the "won't fit" list posted elsewhere on this site and our car is substantially lowered, I think a semi-sliced sensor wire is a small price to pay :rolleyes:
 
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