Scania EMU DTC 8258 Motor and Inverter pump internal diagnostic, PWM control signal error

EMU EMU control unit · Scania

Code 8258 (decimal). Some diagnostic tools show it in hexadecimal as 002042.

In short

Pump indicates PWM control signal error, pump responds with 120 Hz on feedback

Applies to: EMU1 (ECS)

What does Scania EMU fault code 8258 mean?

What causes Scania DTC 8258?

How to fix Scania EMU fault code 8258?

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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.

Code 8258 in other Scania systems