Scania OPC DTC 5021 Internal fault in control unit

OPC Opticruise gearbox control · Scania

Code 5021 (decimal). Some diagnostic tools show it in hexadecimal as 139D.

In short

Critical internal fault in the control unit, RAM or FLASH.

Applies to: OPC5 (OPC5 ECA)

What does Scania OPC fault code 5021 mean?

What causes Scania DTC 5021?

How to fix Scania OPC fault code 5021?

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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.

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