Scania OCS DTC 1653504 Ignition module E104, for low charging voltage to ignition coil

OCS OCS control unit · Scania

Code 1653504 (decimal). Some diagnostic tools show it in hexadecimal as 193B00.

In short

The charging voltage for the ignition coils is not achieved.

Applies to: OCS1

What does Scania OCS fault code 1653504 mean?

What causes Scania DTC 1653504?

How does the system react?

What are the symptoms?

How to fix Scania OCS fault code 1653504?

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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.