Scania TMS DTC 749 BMU control unit, unexpected value on CAN message

TMS Transmission Management System · Scania · 2 variants

Code 749 (decimal). Some diagnostic tools show it in hexadecimal as 02ED.

In short

The BMU control unit interprets an unexpected value in the CAN message from the battery unit.

Variant 1

Applies to: TMS4 (TMS)

What does Scania TMS fault code 749 mean?

What causes Scania DTC 749?

How does the system react?

How to fix Scania TMS fault code 749?

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Variant 2: CAN communication with the MGU control unit

Applies to: TMS5 (TMS)

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

Code 749 in other Scania systems

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