- Joined
- Jul 8, 2013
- Messages
- 90
- Points
- 25
Hi,
now I know this has been discussed over, and over. And over again and I have searched but couldn't find any answer to my particular question. So I rang a dealership and got told to either spend £80 for a diagnostic or go take a hike and get off the phone (admittedly slightly more politely, if only slightly).
So I have the - now widely accpeted as a perk of the Stilo - airbag light and having plugged in multiecuscan have quickly narrowed it down the the OCS. It says that it is recieving an unknown signal from it. So go to the connectors and clean them you say! I have done that, plenty of times, but to no avail. I will admit that I have not tried soldering the wires yet but I will soon.
Now onto point! Hopefully i'll have a OCS coming that I can play with. I'm a big believer in "if it can break it can be fixed" so when it arrives I want to try work out what exactly decides its had enough with these sensors. I also want to try work out what sort of signal it sends to the airbag ECU. From looking at the wiring diagram on eLearn its go three connections (see attachment, K65 is the OCS so far as i'm aware) , 12v +, earth and a line to the ECU. Does anyone have the technical data on what signal it is supposed to send down the line? Does it work in the same way as the airbag on/off switch where it will register a different resistance depending on conditions, i.e resistance a for 50-70kg occupant , resistance b for 70-90 etc (a simplified example), or is it sending some other kind of signal? And, more importantly, whats the best way to measure this? Obvisouly I'll do all my measuring with the OCS out of the car so I can't set off all the internal fireworks!
Also if anyone has a wiring diagram for the OCS it self, or has any other technical data on it that would be much appriciated.
Finally - if you're still reading you deserver a pint -at some point after all this messing I will probabaly want to play with it while its connected to the system. "Noooo!" i hear you cry! But fear not, my plan is to go round and disconnect all the actual air bags so that they can't be set off. My question is, if all the airbags are unplugged I assume the system will pull up an error for every airbag missing and thus shut down and won't try to fire. But what will happen when I finish and plug it all back in? If we say my process will be as follows, unplugging the battery when ever i plug/unplug. Unplug airbags, play around sitting on seat and measuring various points, get bored, clear out all the error codes with MES, plug it all back in, clear errors again. Whats the risks of the airbags going off?
Thanks in advance!
Alex
now I know this has been discussed over, and over. And over again and I have searched but couldn't find any answer to my particular question. So I rang a dealership and got told to either spend £80 for a diagnostic or go take a hike and get off the phone (admittedly slightly more politely, if only slightly).
So I have the - now widely accpeted as a perk of the Stilo - airbag light and having plugged in multiecuscan have quickly narrowed it down the the OCS. It says that it is recieving an unknown signal from it. So go to the connectors and clean them you say! I have done that, plenty of times, but to no avail. I will admit that I have not tried soldering the wires yet but I will soon.
Now onto point! Hopefully i'll have a OCS coming that I can play with. I'm a big believer in "if it can break it can be fixed" so when it arrives I want to try work out what exactly decides its had enough with these sensors. I also want to try work out what sort of signal it sends to the airbag ECU. From looking at the wiring diagram on eLearn its go three connections (see attachment, K65 is the OCS so far as i'm aware) , 12v +, earth and a line to the ECU. Does anyone have the technical data on what signal it is supposed to send down the line? Does it work in the same way as the airbag on/off switch where it will register a different resistance depending on conditions, i.e resistance a for 50-70kg occupant , resistance b for 70-90 etc (a simplified example), or is it sending some other kind of signal? And, more importantly, whats the best way to measure this? Obvisouly I'll do all my measuring with the OCS out of the car so I can't set off all the internal fireworks!
Also if anyone has a wiring diagram for the OCS it self, or has any other technical data on it that would be much appriciated.
Finally - if you're still reading you deserver a pint -at some point after all this messing I will probabaly want to play with it while its connected to the system. "Noooo!" i hear you cry! But fear not, my plan is to go round and disconnect all the actual air bags so that they can't be set off. My question is, if all the airbags are unplugged I assume the system will pull up an error for every airbag missing and thus shut down and won't try to fire. But what will happen when I finish and plug it all back in? If we say my process will be as follows, unplugging the battery when ever i plug/unplug. Unplug airbags, play around sitting on seat and measuring various points, get bored, clear out all the error codes with MES, plug it all back in, clear errors again. Whats the risks of the airbags going off?
Thanks in advance!
Alex