04-12-2025, 09:13 PM
Did you replace the WAM (360 camera module) or the VCM?
First, check the resistance on the OBD port. PIN 6 CAN_H and 14 CAN_L You should read 60 ohms. If you read 120, most likely your VCM is faulty. Terminations are on VCM and CEM.
The SPA models have ethernet base diagnostics through VCM. The traditional diagnostics tools like yours work on the CAN bus. So, the diagnostic tool must send diagnostic command to VCM first to enable the CAN bus.
Without the actual DTCs, there is not much we can help. Those messages are so generic but have nothing to with seat movement. If your seat airbags were faulty you should see airbag light on dash.
Here is the wiring diagram. It's for S/V90 but other than some accessories, everything is the same as XC90 series.
https://forums.spaycetech.com/attachment.php?aid=335
First, check the resistance on the OBD port. PIN 6 CAN_H and 14 CAN_L You should read 60 ohms. If you read 120, most likely your VCM is faulty. Terminations are on VCM and CEM.
The SPA models have ethernet base diagnostics through VCM. The traditional diagnostics tools like yours work on the CAN bus. So, the diagnostic tool must send diagnostic command to VCM first to enable the CAN bus.
Without the actual DTCs, there is not much we can help. Those messages are so generic but have nothing to with seat movement. If your seat airbags were faulty you should see airbag light on dash.
Here is the wiring diagram. It's for S/V90 but other than some accessories, everything is the same as XC90 series.
https://forums.spaycetech.com/attachment.php?aid=335