Audi Workshop Service and Repair Manuals

• ‒ Select function individual measurement, read Channel 06, engine stopped.

• ‒ Compare the measurement in Channel 06 with a barometer
  (e.g. Turbocharger test unit V.A.G 1397/A).

If no realistic measurement occurs in Channel 06:

• ‒ → Pull off the connector on the sensor => Installation locations Overview, Page 24-4.
• ‒ Switch the ignition on.
• ‒ → Connect the multimeter for voltage measurement to the following contacts on the connector:

If the specified results are not obtained:

• ‒ Connect the V.A.G 1598/22 test box to the wiring harness for the engine control unit.
  

The following wiring connections should be checked for open circuits and/or short to positive or negative:

• ‒ Rectify short circuit or open circuit if necessary.

If no fault is detected in the wiring:

• ‒ Renew the altitude sensor (F96).