[1] Check component Charge pressure positioner.: Positioner signals fault.

[1] Check component Charge pressure positioner.: Positioner signals fault.

Test 1: Check component Y77/1 (Charge pressure positioner).

1. Check component Y77/1 (Charge pressure positioner).
Figure legend

- Y77/1 (Charge pressure positioner)
- Y77/1x1Plug connection Y77/1 (Charge pressure positioner)
Procedure

- Check component Y77/1 (Charge pressure positioner) for unobstructed movement by actuation.
Proceed to 'Actuation' with F2







Actuation of component Y77/1 (Charge pressure positioner)
Figure legend

- Y77/1 (Charge pressure positioner)
- Y77/1x1Plug connection Y77/1 (Charge pressure positioner)
Test prerequisite

- Engine at idle
- All electrical accessories must be switched off.
Test sequence

- The entire linkage from component Y77/1 (Charge pressure positioner) to the turbocharger must move visibly during the actuation.
Important note

- Never actuate turbocharger adjusting mechanism by hand.
Proceed to 'Actuation' with F2







Warning!Communication with ECU required.