Scania EMU DTC 3159 Contactor unit R126, pre-charge resistor contactor, short circuit to earth or open circuit

EMU EMU control unit · Scania

Code 3159 (decimal). Some diagnostic tools show it in hexadecimal as 000C57.

In short

The control unit indicates too low a voltage for the pre-charge resistor output signal.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 3159 mean?

What causes Scania DTC 3159?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 3159?

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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 3159 in other Scania systems