SRS fault
 

my airbag light is on,my fault code reader wont read the srs system,any known reason for this?(delphi 2013)
any known problems on my 75 2002 2.0 tdi?

Plenty of info on here mate
Well known feature of the 75 :D
Under seat connections
5 minute fix normally
Regards
Chris

More than likely the under seat connections for the airbags

As stated above, lots of info if you use the search facility

However, you are new, so won't know you're away around the forum yet!

Push the seats forward as far as they'll go and raise them as high as they'll go (manual easy, electric, do this and then turn ignition off completely)!

Under the front seats, there are a number of wires, but there is also a large yellow connector for the airbags

With ignition off, unplug these and gently plug them back together and repeat a few times, this will help to clean the connections of any corrosion

Put them back together and use a long zip tie, threaded through the wires at each end (lengthways), to hold the plug tightly closed... This will stop it separating slightly and causing the airbag light to come back on

MAKE SURE YOU DO ALL THIS WITH THE IGNITION OFF!

Turn ignition on and warning light should time out... If it doesn't, you need to try this process again, or then start looking elsewhere and see if the rear carpets are wet at all as there are sensors under there that can corrode etc

It's always been recommended here to disconnect the battery for 20 minutes before doing this job, to be on the safe side... so you reckon that isn't necessary?

It's certainly a pain in the {naughty word} - be good if you're right :D

Nope; never disconnected the batter. Had similar issues in previous Honda's and BMW's and never disconnected the battery

Each to their own. As long as you're careful, you should be fine

However, it does only take 30secs to open the bonnet and disconnect the battery

Oh, that's not the problem... the received wisdom here is that you then have to wait for like 20 minutes to make sure all capacitors have discharged or whatever. Which, again, is not the end of the world - but if you have to try multiple things to get the **** light to go off, and wait another 20 minutes every time, and another... it soon gets really annoying!

With the ignition off the SRS ECU has no power so no need to disconnect the battery, just take the keys out, after all,how many stationery cars have you seen with airbags deployed after being hit?

Failure to read the SRS ECU is a common problem, the ecu is dead!

Thanks Phil, that's very reassuring :duh:

The capacitor would be bigger than the car if it could hold on to a charge for that long :D

Most, if not all are discharged in less than a second as they are used for smoothing the voltage line rather than storing any electrical charge.

But if people feel safer by disconnecting the battery that long then that's fine :D

the ecu is indeed dead...took it to a mate with a 5 grand code reader and its not seeing the ecu either....im ordering an ecu off ebay soon,see if that improves matters?