Engine Control Module -J623-: Notes

Some engine control modules are not equipped with a protective housing. The removal and installation of the protective housing depends on the engine and transmission combination.

The Engine Control Module (ECM) -1- is bolted to a protective housing -5-. To make removing the shear bolts -4- for the retaining tabs -2- more difficult, the threads are coated with locking compound.

Fig 1: Identifying Engine Control Module (ECM) Components

Courtesy of AUDI OF AMERICA, LLC

To disconnect the connectors from the ECM (for example to connect the test box or to replace the ECM), the protective housing must be removed.