My VAG 405 fault code reader arrived today, so been been having a play! It won't Connect to all the modules, or take away the oil serving light, but it maybe needs a update via computer. (I know it won't connect to all the modules anyway, and I don't have access to a  computer to update).

 

Not entirely sure if it gave me the actual fault codes, but come up with the following items.

 

airbag drivers side, airbag igniter, static value of resistance too great

 

engine - fuel trim malfunction p0170, static no define

 

cent electrics, drive battery voltage sporadic, implausible signal too low.

 

suprised it only came up with these! The first one could be the clock spring 

The oil service indicator is reset by using the trip button on the clocks as I explained in a previous thread.

 

The airbag fault is not the clock spring but a faulty igniter in the airbag.

 

'engine - fuel trim malfunction p0170, static no define' This could be a faulty lambda sensor. I'd clear the code and see if it comes back. 

 

As for drive batery voltage - does the battery light come on with ignition turned on without engine running? Could be the famous alternator load signal wires broken or making intermittent contact.

Edited 4 September, 20178 yr by TMB

Battery voltage too low can happen just from cranking the engine on a tired battery, you see it on cars used for short trips which need a good run to charge them fully.

I've reset the oil, just interesting it doesn't work with the reader along with the other bits.

 

thanks for the info though, really helpful. I've reset the trim malfunction, see what happens.

 

with the battery voltage, I've poked around, and the little black wire needed the nut tightening up. Done that and reset it so will see if that comes back.

 

so now I just need to figure out how to fix the airbag !

You need a whole new airbag. Plenty of used ones on ebay.

Is this the type yours has?...

 

http://www.ebay.co.uk/itm/Skoda-Fabia-MK1-99-07-Drivers-Steering-Wheel-Airbag/162648496725?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D45992%26meid%3D8f19dc5a4e5444a8a784646c877320ed%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D292076829145&_trksid=p2047675.c100005.m1851

 

 

Yes it's one of those  thanks for your help!

No probs

18 hours ago, sepulchrave said:

Battery voltage too low can happen just from cranking the engine on a tired battery, you see it on cars used for short trips which need a good run to charge them fully.

Stick a voltmeter on battery whilst cranking. Somewhere else folks miss is starter solenoid. Poor contacts in this with the current starter takes can often drastically reduce voltage at starter  . From memory on older cars max drop allowed is less than 0.5volt. ( When starter motor is cranking ,obviously) .

But don't forget that when starter is not operated ,then there will be at least 12v across the solenoid.