Turbocharger Control Module 1 -J724-, REMOVING AND INSTALLING (VEHICLES WITH ENGINE CODE CPNB): Removing
-- Remove the engine cover, refer to ENGINE COVER, REMOVING AND INSTALLING .
-- Remove the cover -1- on the handle.
-- Release the retainer -arrow A- and open the cover -arrow B-.
-- Turbo E-Positioner Service Kit VAS6395A/1 with the Turbo E-Positioner Service Kit - Wire Set VAS6395/2 to the positive terminal -1- and to the negative terminal -2-.
Procedure for E-Positioner Service Kit VAS6395A/1:
-- Select the software version using the ↑ -5- and ↓ -6- buttons.
-- Press the v button -4- to confirm the software version.
In this example, Hella software -1- is selected.
Procedure for Electronic Unit (E-Box) VAS6395/1:
Check the software version of the Electronic Unit (E-Box) VAS6395/1:
Danger of damaging the Turbocharger Control Module 1 -J724-.
- Make sure the correct software is loaded in the Electronic Unit (E-Box) VAS6395/1 before performing the following procedure:
If the correct software is loaded, the following will be displayed on the Electronic Unit (E-Box) VAS6395/1 (2 seconds after the voltage supply is connected):
- > 1. START
- 2. NEXT [>]
If the following appears in the display, then incorrect software has been loaded:
1. >TEST
2. LEARN
If this is the case, then download the software from "Audi Service Net", "Workshop Equipment".
For Both E-boxes:
-- Disconnect the Turbocharger Control Module 1 -J724- connector.
-- Connect the Turbo E-Positioner Service Kit - Wire Set VAS6395/2 on the Turbocharger Control Module 2 -J724- and on the E-Positioner Service Kit VAS6395A/1.
Select on the VAS6395A/1 display:
- > 1. START
- 2. NEXT [>]
-- Press the v button -4- to continue.
- The E-Positioner Tester VAS6395 A/1 checks the Turbocharger Control Module 2\1 -J724- adjustment range in steps to determine if the end points are being reached. "CHECK" appears in the display.
Select on the E-Box VAS6395A/1:
- Blank
- [OK]
If "[OK]" appears in the display, then the Turbocharger Control Module 1 -J724- adjustment range is OK.
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 v button -item 4- to repeat the test.
-- Remove the bolt -arrow-.
All other bolts visible in the illustration must not be removed.
-- Attach the Turbo E-Positioner Service Kit - Bracket VAS6395 /6 to the center opening in the bracket for the Turbocharger Control Module 1 -J724- and tighten the bolt to 8 Nm.
-- Press the v button -4- to continue.
- To determine the voltage, the Turbocharger Control Module 1 -J724- will check back and forth several times between the stops.
- Then the Turbocharger Control Module 1 -J724- will go into the in installation position.
-- 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:
Select on the E-Box VAS6395A/1 display:
- X, XXX V
- [↑][↓][OK]
-- Write down the voltage.
- Specified value: 3.3 to 3.7 V.
If "FAULT [OK]" appears or if the voltage is less than 3.3 V or greater than 3.7 V, disconnect the E-Positioner Service Kit VAS6395 A/1 and repeat the entire procedure.
Select on the E-Box VAS6395A/1 display:
- X, XXX V
- [↑][↓][OK]
-- Adjust the Turbocharger Control Module 1 -J724- using the ↑ -5- or ↓ -6- buttons so that the coupling rod is accessible for removal.
-- Remove the circlips -arrows- and disconnect the coupling rod.
Select on the E-Box VAS6395A/1 display:
- X, XXX V
- [↑][↓][OK]
-- Adjust Turbocharger Control Module 1 -J724- using the ↑ -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-
The voltage supply for the Turbo E-Positioner Service Kit - E Box VAS6395/1A must remain connected.
-- Remove the bolts -1, 2 and 3- and dispose of them.
All other bolts visible in the illustration must not be removed.
-- Remove the old Turbocharger Control Module 1 -J724- and dispose of it.
Make sure there are 3 insulating washers between the Turbocharger Control Module 1 -J724- and the bracket.