OysteinMB

Hi All,
I have a ML 280 CDI 4 Matic with a Restraint systems control unit (SRS) error/warning. On Mercedes workshop they first write in the report that SRS unit has to be replaced and programmed. Then I got a used one and go to the Mercedes workshop for replacement, but then they say is not the SRS unit that cause the SRS error/warning, but issue is properly either power or CAN bus error to the SRS unit.

Have got the electric power wiring through other Thread at MBWorld (so thank to you all for sharing.

1)
Does anyone know where the SRS unit are located
2)
Wiring diagram/oveview for CAN Bus to the SRS module including junction terminals (e.g. X30/x....)

Maj. Dundee

It is under the beverage holder.

OysteinMB

Hi,

Thank you for sharing this information. You are very kind to share the information with others

Best regards

OysteinMB

2)
Does any one has the wiring diagram/oveview for CAN Bus to the SRS module including junction terminals (e.g. X30/x....)

OysteinMB

Hi,

Have checked my CANBUS and it is 60,5 ohm between CAN H and CAN L on the OBD2 pin 6 and pin 14. Have also messured between CAN H - ground and CAN L - ground and this is infinite. So now I'am looking for the wiring diagram towards the SRS module to check so it has both power and CAN BUS communication towards the SRS unit.

Thanks in advance

Kind regards