Scania EMS DTC 10003 Main ASC Inlet NOx sensor - O2 offset (negative)

EMS Engine Management System · Scania

Code 10003 (decimal). Some diagnostic tools show it in hexadecimal as 002713.

In short

Sensor O2 measurement bias during fuel cut

Applies to: EMS10

What does Scania EMS fault code 10003 mean?

What causes Scania DTC 10003?

How to fix Scania EMS fault code 10003?

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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.