Scania EMS DTC 42240 SCR - Voltage supply

EMS Engine Management System · Scania

Code 42240 (decimal). Some diagnostic tools show it in hexadecimal as A500.

In short

The voltage has been above the permitted level for one of the sensors which has a shared voltage supply.

Applies to: EMS S6

What does Scania EMS fault code 42240 mean?

What causes Scania DTC 42240?

How does the system react?

How to fix Scania EMS fault code 42240?

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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.