Scania EMS DTC 1603 Gas pressure sensor

EMS Engine Management System · Scania

Code 1603 (decimal). Some diagnostic tools show it in hexadecimal as 0643.

In short

The gas pressure sensor reference voltage is too high.

Applies to: EMS S7EMS S8

What does Scania EMS fault code 1603 mean?

What causes Scania DTC 1603?

How does the system react?

How to fix Scania EMS fault code 1603?

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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 1603 in other Scania systems