Variant 1
Applies to: EMD0
What does Scania EMD fault code 274 mean?
The voltage in the temperature sensor circuit in the intake manifold has been below the permitted level. For vehicles with EGR mass flow sensor T126 measures the temperature in the intake manifold. For other vehicles this is done by pressure and temperature sensor T202.
What causes Scania DTC 274?
The temperature sensor in the intake manifold is short-circuited to ground.
How does the system react?
Engine power could be affected.
How to fix Scania EMD fault code 274?
Check the harness-to-component connectors and cable harness of the temperature sensor in the intake manifold.
Variant 2
Applies to: EMD1
Detection
The voltage in the temperature sensor circuit in the intake manifold has been below the permitted level. For vehicles with EGR mass flow sensor T126 measures the temperature in the intake manifold. For other vehicles this is done by pressure and temperature sensor T202.
Possible cause
The temperature sensor in the intake manifold is short-circuited to ground.
System reaction
Engine power could be affected.
How to fix
- Check the harness-to-component connectors and cable harness for the temperature sensor in the intake manifold.
- Change the temperature sensor.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.