Scania OPC DTC 14121 Position sensor for range gear

OPC Opticruise gearbox control · Scania · 2 variants

Code 14121 (decimal). Some diagnostic tools show it in hexadecimal as 3729.

In short

Prohibited voltage in circuit.

Variant 1

Applies to: OPC4

What does Scania OPC fault code 14121 mean?

What causes Scania DTC 14121?

How does the system react?

How to fix Scania OPC fault code 14121?

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Variant 2

Applies to: OPC5 (OPC5 ECA)

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

Code 14121 in other Scania systems

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