[1] Check component Y27/9 (Left EGR positioner).: Positioner signals fault.

[1] Check component Y27/9 (Left EGR positioner).: Positioner signals fault.

Test 1: Automatic test of exhaust gas recirculation

1. Automatic test of exhaust gas recirculation
Test prerequisites:Coolant temperature between 80 °C and 100 °COil temperature between 80 °C and 100 °C Lambda value between 1 and 10All electrical accessories must be switched off.Switch off the air conditioning.Intake and exhaust system without leakage Operate parking brake.Take out gear.Engine at idle Status of the relevant actual values:
- Coolant temperature:Warning! Communication with ECU required.

- Oil temperature:Warning! Communication with ECU required.

- Lambda upstream of TWC:Warning! Communication with ECU required.
Continue with button F2