1998 C70 About SRS lamp

[xanthefin]

So Misha has taught me something else that I didn't know about the crash data. So it sounds like you have to take it to Volvo to erase the crash data, assuming they still can! Some dealerships have started to sell of older equipment as it is taking up space.

The only other option is as Misha says to swap out the SRS module. Man is this complicated!

Neil

Volvo doesn't ever erase crash data in my knowledge. They replace SRS modules like other OEMs.

Not before CAN network from '99 and after.

Can you share this SRS module dump from 99 which has VIN code as i dont have any those? P2 models not before 2004/5 year models yet even had VIN code inside SRS module memory anywhere.

[misha]

Can you share this SRS module dump from 99 which has VIN code as i dont have any those? P2 models not before 2004/5 year models yet even had VIN code inside SRS module memory anywhere.

I don't have it since i don't do ecu(s) programming/flashing.

[jmartin919]

So what options are their for owners of vehicles that have a failed module or been in a crash that is tied to the VIN? I sent mine (2000) to myairbags and they couldn't do anything with it.

[xanthefin]

Can you share this SRS module dump from 99 which has VIN code as i dont have any those? P2 models not before 2004/5 year models yet even had VIN code inside SRS module memory anywhere.

I don't have it since i don't do ecu(s) programming/flashing.

I do SRS resets too so i was interested to add my database if there is any special cases.
I have dumps from example 2000 V70 Airbag and i can't see there else than usual Part Number, Software and Airbag configurations etc but no VIN code so i don't think at all there is any ties to VIN code as there is zero evidence of this. Only thing these modules has is configuration of Airbags in the car which can change and it can complain of it but not else.
I think there is much of wrong information circulating from 1999 models or rumours which are not tied to any evidence. So i will wait someone show 1999 or 2000 SRS airbag module with VIN code as i dont belief one exist.

[misha]

But...even if they don't have VIN in them...it's tied up with other modules via CAN network and it should be re-programed to be accepted from other modules in the car.

[xanthefin]

But...even if they don't have VIN in them...it's tied up with other modules via CAN network and it should be re-programed to be accepted from other modules in the car.

SRS is not connected to CAN Bus on 99 or 00 models.
There is no Slow Speed CAN Bus on these years only High Speed CAN Bus is present and what you mention is what happens on P2 models and even that is not exactly true as requirement as you can change many modules without programming if you just change to same year CAN Bus module so you prevent making error code of E003 Definition: Configuration Fault.

P2 DIM is sensitive to receive correct info from CEM and ECM so you cant mix between Diesel or Petrol as they use totally different "channels" if same year.

P2 models CAN Bus ID's did change three times or more during the years which why they make that error code if you get them mixed.
CEM and ECM is due immo sensitive partners on P2 platform though which you need do reload OR manually fix the link which i do.

[misha]

Ok...this is great info for someone who would be in the quest for this.

[xanthefin]

Ok...this is great info for someone who would be in the quest for this.

Welcome!

[jimmy57]

The change from DC current wiring to AC makes the harness change. The end plugs on 99 will have capacitors and 98 will not. The bags and belts don't care but if you have the harness from 99 and airbag control unit original to the car that is a problem as the capacitors in end plugs for airbag will make a DC current control unit think there is an open circuit.

[abscate]

The change from DC current wiring to AC makes the harness change. The end plugs on 99 will have capacitors and 98 will not. The bags and belts don't care but if you have the harness from 99 and airbag control unit original to the car that is a problem as the capacitors in end plugs for airbag will make a DC current control unit think there is an open circuit.

Always nice to hear from you jimmy, as then I know our info is getting the critical expert view over.