Scania EMS DTC 1142 Low exhaust gas pressure

EMS Engine Management System · Scania · 2 variants

Code 1142 (decimal). Some diagnostic tools show it in hexadecimal as 0476.

In short

When requesting low back pressure (0.5-4 bar) and low engine speed (500-2,400 rpm), the back pressure in the exhaust brake engine does not reach the expected level.

Variant 1: Exhaust brake back pressure, does not reach expected level

Applies to: EMS10

What does Scania EMS fault code 1142 mean?

What causes Scania DTC 1142?

What are the symptoms?

How to fix Scania EMS fault code 1142?

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Variant 2

Applies to: EMS S8

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

Code 1142 in other Scania systems

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