Scania EMS DTC 5921 Throttle M42, supply voltage too low

EMS Engine Management System · Scania

Code 5921 (decimal). Some diagnostic tools show it in hexadecimal as 001721.

In short

The throttle has detected that the supply voltage is lower than 7 V.

Applies to: EMS10

What does Scania EMS fault code 5921 mean?

How to fix Scania EMS fault code 5921?

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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 5921 in other Scania systems