Scania EMS DTC 18 The temperature in the exhaust gas aftertreatment system is too high

EMS Engine Management System · Scania

Code 18 (decimal). Some diagnostic tools show it in hexadecimal as 000012.

In short

The temperature in the exhaust gas aftertreatment system is too high.

Applies to: EMS10

What does Scania EMS fault code 18 mean?

The temperature in the exhaust gas aftertreatment system is too high.

What causes Scania DTC 18?

- Fire in the exhaust gas aftertreatment system.

How to fix Scania EMS fault code 18?

  1. Troubleshoot the exhaust gas aftertreatment system.
  2. Delete the fault code by running the wizard Deleting fault codes for overheated post-processing after a repair operation.

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

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