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Fault code: EMS 55 SCANIA

Finding the fault code

Enter the fault code System

Fault code:

Lambda sensor

Lambda sensor preheating shows too low a value.

The fault may be due to the following causes:

• Open circuit.

• Short circuit to ground.

–

Limp home mode is activated.

Carry out the following:

• Check the lambda sensor and also the connectors and cable harness.

• Check the fuse in the central electric unit.

• Renew the lambda sensor.