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Home >> Audi >> 2009 >> Q7 4.2 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (3.0L - Turbocharger & Supercharger - Engine Code: CATA) >> 21 Turbocharger, Supercharger >> Turbocharger >> Turbocharger Control Module 1 -J724-, REMOVING AND INSTALLING >> Removal >> For both E-Boxes:

For both E-Boxes:

WARNING: This page is about a different variant/trim than selected.
Fig 1: Connecting Wire Set VAS 6395/2 To Turbocharger Control Module 1 Connector
GWWA21-10465Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the Turbocharger Control Module 1 -J724- connector.

-- Connect the Turbo E-Positioner Service Kit - Wire Set VAS6395/2 to the Turbocharger Control Module 1 -J724- and to the E-Box VAS 6395 /1A.

The E-Box VAS 6395 /1A displays:

Fig 2: E-Box VAS 6395 /1A Tester
GWWA21-10543Courtesy of AUDI OF AMERICA, LLC
  1. > 1. START
  2. 2. NEXT [>]

-- Press the button -item 4- to continue.

E-Box VAS 6395 /1A display:

Fig 3: E-Box VAS 6395 /1A Tester
GWWA21-10543Courtesy of AUDI OF AMERICA, LLC
  1. [OK]
NOTE:

If "[OK]" appears in the display, then the Turbocharger Control Module 1 -J724- adjustment range is in order.

If "FAULT [OK]" appears in the display, tap the side of the Turbocharger Control Module 1 -J724- housing several times with a screwdriver handle and then the button -4- to repeat the test.

-- Tighten the countersunk screws already installed in the E-Positioner Service Kit - Bracket VAS6395/5 to 8 Nm.

Fig 4: Identifying VAS 6395/5 And VAS 6395/2
GWWA21-10466Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Incorrect measurement because the E-Positioner Service Kit - Bracket VAS6395/5 was secured incorrectly.

  • Use only the countersunk screws supplied with the bracket to secure it.
  • Do not loosen the bracket until the procedure is completed.

-- Press the button -item 4- to continue.

Fig 5: E-Box VAS 6395 /1A Tester
GWWA21-10543Courtesy of AUDI OF AMERICA, LLC

-- While determining the voltage, tap on the side of the Turbocharger Control Module 1 -J724- housing with the handle of a screwdriver until the following appears in the display:

The E-Box VAS 6395 /1A displays:

  1. X, XXX V
  2. [↑][↓][OK]

-- Write down the voltage.

NOTE:

If "FAULT [OK]" appears or if the voltage is less than 3.3 V or greater than 3.7 V, disconnect the E-Box VAS 6395 /1A and repeat the entire procedure. Refer to For both E-Boxes:  (See Fig 1).

The E-Box VAS 6395 /1A displays:

Fig 6: E-Box VAS 6395 /1A Tester
GWWA21-10543Courtesy of AUDI OF AMERICA, LLC
  1. X, XXX V
  2. [↑][↓][OK]

-- Adjust the Turbocharger Control Module 1 -J724- using the ↑  -item 5- or ↓  -item 6- buttons so that the coupling rod is accessible for removal.

-- Remove the circlips -arrows- and disconnect the coupling rod.

Fig 7: Identifying Circlips -Arrows- And Coupling Rod
GWWA21-10283Courtesy of AUDI OF AMERICA, LLC

The E-Box VAS 6395 /1A displays:

Fig 8: E-Box VAS 6395 /1A Tester
GWWA21-10543Courtesy of AUDI OF AMERICA, LLC
  1. X, XXX V
  2. [↑][↓][OK]

-- Adjust Turbocharger Control Module 1 -J724- using the ↑  -item 5- or ↓  -item 6- buttons so that the bolts for Turbocharger Control Module 1 -J724- are accessible.

-- Disconnect the Turbo E-Positioner Service Kit - Wire Set VAS6395/2 from the Turbocharger Control Module 1 -J724-.

Fig 9: Identifying VAS 6395/5 And VAS 6395/2
GWWA21-10466Courtesy of AUDI OF AMERICA, LLC
CAUTION:

The voltage supply for the E-Box VAS 6395 /1A must remain connected.

-- Remove the screws -1, 2 and 3- and dispose of them.

Fig 10: Identifying Screws -1, 2 And 3-
GWWA21-10284Courtesy of AUDI OF AMERICA, LLC

-- Remove the old Turbocharger Control Module 1 -J724- and dispose of it.

CAUTION:

Make sure there are 3 insulating washers between the Turbocharger Control Module 1 -J724- and the bracket.

Continue as follows with installing Turbocharger Control Module 1 -J724-.