Engine Control Module -J623-, REMOVING AND INSTALLING: Removing

WARNING: This page is about a different car, the 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- Read the adaptation values for the fuel injector and ash content before removing the Engine Control Module -J623-. Use Vehicle Diagnostic Tester.

The fuel injector adaptation values of the old (faulty) Engine Control Module (ECM) can be stored and read as a file in the Vehicle Diagnostic Tester with Guided Fault Finding or Guided Functions, refer to Vehicle Diagnostic Tester.

-- Switch off the ignition after saving the file and remove the key.

NOTE:

If the injector adaptation values from the faulty ECM are no longer readable, they must be manually entered and adapted in the new ECM.

-- Remove the plenum chamber cover, refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .

-- Remove the bolts -arrows-, pull the filler tube out of the windshield washer fluid reservoir and out of the opening in the body and move it to the right.

Courtesy of AUDI OF AMERICA, LLC

-- Open the retainer -arrow- and remove the Engine Control Module -J623- -1-.

Fig 1: Engine Control Module -J623- Component Location

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore item -2-.