Scania TCO DTC 42019 Impulse sensor

TCO Tachograph · Scania

Code 42019 (decimal). Some diagnostic tools show it in hexadecimal as A423.

In short

The encrypted signal from the impulse sensor has been detected as being faulty or unknown.

Applies to: P1 (TCO)

What does Scania TCO fault code 42019 mean?

What causes Scania DTC 42019?

How does the system react?

How to fix Scania TCO fault code 42019?

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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 42019 in other Scania systems