Scania CMS DTC 850 Battery data module, fault in CAN message

CMS CMS control unit · Scania

Code 850 (decimal). Some diagnostic tools show it in hexadecimal as 0352.

In short

The battery data module interprets a fault in CAN messages. Some signals have an error message or are missing entirely.

Applies to: CMS1 (CMS)

What does Scania CMS fault code 850 mean?

The battery data module interprets a fault in CAN messages. Some signals have an error message or are missing entirely.

What causes Scania DTC 850?

- Internal fault in the battery data module.

How does the system react?

- Instrument cluster not displaying any values. - Some functions in the chassis management system are not working.

How to fix Scania CMS fault code 850?

- Renew battery data module

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

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