Scania CUV DTC 634 Internal control unit, right-hand headlamp

CUV Visibility system · Scania

Code 634 (decimal). Some diagnostic tools show it in hexadecimal as 027A.

In short

Fault in the internal control unit in the right-hand headlamp.

Applies to: CUV3 (VIS)

What does Scania CUV fault code 634 mean?

What causes Scania DTC 634?

How does the system react?

How to fix Scania CUV fault code 634?

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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 634 in other Scania systems

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