Scania BMU DTC 2638 CAN communication between the master and subordinate BMU, serial number fault

BMU Battery Management Unit · Scania

Code 2638 (decimal). Some diagnostic tools show it in hexadecimal as 000A4E.

In short

Calculated and received serial number for the CAN message do not match.

Applies to: BMU7 (BMUA)BMU7 (BMUB)BMU7 (BMUC)BMU7 (BMUD)BMU7 (BMUE)BMU7 (BMUF)BMU7 (BMUG)BMU7 (BMUH)BMU7 (BMUI)BMU7 (BMUJ)BMU7 (BMUK)BMU7 (BMUL)BMU7 (BMUM)BMU7 (BMUN)BMU7 (BMUO)BMU7 (BMUP)

What does Scania BMU fault code 2638 mean?

What causes Scania DTC 2638?

How to fix Scania BMU fault code 2638?

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