Scania EMD DTC 6521 Exhaust gas pressure sensor T125

EMD EMD control unit · Scania · 2 variants

Code 6521 (decimal). Some diagnostic tools show it in hexadecimal as 1979.

In short

Implausibly high signal from exhaust gas pressure sensor T125.

Variant 1

Applies to: EMD0

What does Scania EMD fault code 6521 mean?

What causes Scania DTC 6521?

How to fix Scania EMD fault code 6521?

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Variant 2

Applies to: EMD1

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

Code 6521 in other Scania systems

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