Scania CSS DTC 438 Ignition circuit, driver’s airbag.

CSS Crash Safety System · Scania

Code 438 (decimal). Some diagnostic tools show it in hexadecimal as 01B6.

In short

The capacitance of the igniter is too high.

Applies to: CSS1

What does Scania CSS fault code 438 mean?

What causes Scania DTC 438?

What are the symptoms?

How to fix Scania CSS fault code 438?

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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 438 in other Scania systems