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P1549

Symptom:

P1549


Boost Pressure Control. Malfunction.


Fault symptoms

Turbo/APC gauge goes far into the red. Pressure switch has opened.

Conditions




• The control module has adjusted the boost pressure to maximum

• The pressure switch has opened


Diagnostic help

The solenoid valve can be activated with the diagnostic tool


- Connect the diagnostic tool.



- Select " Data Display / Output Control (New)".



- Select " Boost Press. Valve".


Checking the wiring harness. Intermittent faults may occur in connection with short circuits and open circuits. Jiggle the wiring harness at several points and in several directions to locate any problems in the wiring, including intermediate connectors. Observe the multimeter, scan tool or test lamp during the check.

Change fuse 24 if necessary.