Scania CSS DTC 1203 Ignition circuit, passenger’s belt pretensioner.

CSS Crash Safety System · Scania

Code 1203 (decimal). Some diagnostic tools show it in hexadecimal as 04B3.

In short

The positive or negative terminals of the ignition circuit have been short-circuited to plus (battery voltage).

Applies to: CSS1

What does Scania CSS fault code 1203 mean?

What causes Scania DTC 1203?

What are the symptoms?

How to fix Scania CSS fault code 1203?

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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 1203 in other Scania systems