Scania COMMUNICATOR DTC 257 No contact with SIM card

COMMUNICATOR Communicator (C200 / C300 / C400) · Scania · 2 variants

Code 257 (decimal). Some diagnostic tools show it in hexadecimal as 0101.

In short

The GSM modem does not find a valid SIM card.

Variant 1

Applies to: C200

What does Scania COMMUNICATOR fault code 257 mean?

What causes Scania DTC 257?

What are the symptoms?

How to fix Scania COMMUNICATOR fault code 257?

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Variant 2: Integrated SIM card

Applies to: C300

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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