Scania EMS DTC 6520 Secondary brake pressure circuit pressure signal, below normal.

EMS Engine Management System · Scania

Code 6520 (decimal). Some diagnostic tools show it in hexadecimal as 001978.

In short

The air pressure output to the engine exhaust brake actuator is higher than the input pressure to the powertrain indicating that the circuit sensor is showing a too low value.

Applies to: EMS10

What does Scania EMS fault code 6520 mean?

What causes Scania DTC 6520?

What are the symptoms?

How to fix Scania EMS fault code 6520?

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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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