Hello,
I was given a Škoda Octavia MK1 1999 and found the following errors in module 46 (comfort module):
01329 Convenience System Data Bus in Emergency Mode 35-00 - -.
00945 Crash Sensor (G190) 29-00 - Short to ground
What do these errors mean and where can I find the G190 sensor?
The wiring of the two rear doors was damaged, they have been repaired. The faults persist even after cancellation.

Hi. You might find the Ross Tech wiki site useful and get a bit more info on the fault codes

http://wiki.ross-tech.com/wiki/index.php/Category:Fault_Codes

Okay, but I don't find this code in the list.

Has the car been involved in a front collision? This error usually comes when the front airbags are deployed and the crash sensor (g190) shuts off the engine for safety reasons. If not, then the module itself has a problem. 

 

The g190 is under the main console below the ashtray.

 

Be careful when messing with the srs system. It's your safety and airbags don't react well if not all the precautions are taken. 

 

As for the 01329 the wiki describes it accurately. 

Edited 21 December, 20232 yr by makymak

4 hours ago, makymak said:

This error usually comes when the front airbags are deployed and the crash sensor (g190) shuts off the engine for safety reasons.

 

Not the short to ground error.

 

My post crash module had an error code that whilst I cant recall the words was unmistakably that it had been deployed and non fuctional. The crash data was removed by a specialist company and it functions again, or at least I hope it will, I hope even more to never get to find out!

On my MK1 that sensor failed, no crash, no deployment, I did not have VCDS at the time but a garagiste friend read the code (I dont know what it was) and tried & failed to reset it, I fitted one I removed from another MK1 in a breakers yard, fitted it and it worked it did not need coding to the vehicle.

 

Its possible that I had to get him to delete the code to get the airbag light out after fitting, I cant recall, it was a long time ago.

When my nephew crashed the Octy, the error was "short to something" don't remember anymore. I'm not saying that this is the situation with the OP. It's a possibility, though. Most obvious, it is just a faulty crash sensor. 

 

After a collision, no diagnostics (including the vcds) can reset the crash sensor errors. It's documented in the wiki. Furthermore, if a sensor is coded for a specific car, it cannot be recoded. It's only one time writing to the eeprom, allowed. To reset a deployed sensor or to change the coding you need access to the eeprom either internally or by special cabling to the sensor and of course the appropriate code. 

 

My nephew's Octy now has a crash sensor from a Leon. Never gave any problem. Me too, hope not to find out its functionality.... 

Edited 21 December, 20232 yr by makymak

Regarding the coding for a specific car, on the Yeti the crash data was removed by a specialist company as I said, not by me with VCDS, so it went back on the same vehicle but they could have supplied an exchange one which would have worked, how they achieve that I don't know.

 

On the MK1 Octavia you 100% can fit an airbag controller (the correct name) from another vehicle and it will work plug and play, I am guessing it would have to have the same part number, maybe even revision, back then I knew none of these things, I just removed one, fitted it to my vehicle and it worked, as I said I may have had to ask my garagiste pal to delete any fault code to get the airbag light off, I cant recall.

The airbags did not deploy, and it was also found that the cable harnesses of the two rear doors were broken. This has been rectified and the problems have since disappeared, as has the emergency mode.

Ex Taxi.