Arteon 2018 β€, Arteon 2021 β€, Arteon Shooting Brake 2021 β€, Golf 2013 β€, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
6
Engine control unit
β a6.2 nd installing engine (motor) control unitJ623 with protecβ
tive housingβ, page 477
6.1
Removing and installing engine control
unit -J623-
β a6.1.2 nd installing engine control unitJ623, Sharanβ, page
474
6.1.1
Removing and installing engine control
unit -J623-, Golf, Passat, Touran, Tiβ
guan, Arteon
Special tools and workshop equipment required
β¦ Vehicle diagnostic tester
Removing
β If the engine control unit is to be renewed, switch on ignition,
and select the following menu options on vehicle diagnostic
tester:
β¦ 0001 - Engine electronics, functions
β¦ 0001 - Renew engine control unit
β Switch off ignition and remove ignition key.
Note
If the engine (motor) control unit comes into contact with the
positive battery terminal, permanent damage to the engine (moβ
tor) control unit will be the consequence. For this reason, the
battery always needs to be disconnected prior to removing the
engine control unit from its bracket β Electrical system; Rep.
gr. 27; Battery; Disconnecting and connecting battery.
β Release fastener -arrow A-, and remove engine control unit
-J623- -arrow B-.
β Release and pull off connectors for engine (motor) control
unit -J623-.
6. Engine control unit
473
Arteon 2018 β€, Arteon 2021 β€, Arteon Shooting Brake 2021 β€, Golf 2013 β€, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
Installing
Install in reverse order of removal, observing the following:
β Insert lower edge of engine control unit -J623- into bracket
-arrow A-, and engage engine control unit in bracket at upβ
per edge.
β’
When doing this, ensure that lugs of engine control unit enβ
gage in notches at top and bottom of bracket -arrows B-.
β Connect battery β Electrical system; Rep. gr. 27; Battery;
Disconnecting and connecting battery.
After a new engine (motor) control unit has been installed, the
following work procedure must be carried out:
β Switch on ignition, and select following menu option on vehiβ
cle diagnostic tester:
β¦ 0001 - Engine electronics, functions
β¦ 0001 - Renew engine control unit
6.1.2
Removing and installing engine control
unit -J623-, Sharan
Note
Removing and installing anti-theft engine control unit β page
480 .
Removing
β If the engine control unit is to be renewed, switch on ignition,
and select the following menu option on vehicle diagnostic
tester:
β¦ 0001 - Engine electronics, functions
β¦ 0001 - Renew engine control unit
β Switch off ignition and remove key from ignition lock.
β Remove windscreen wiper arms: β Electrical system; Rep.
gr. 92; Windscreen wiper system; Removing and installing
windscreen wiper arms.
474
Rep. gr.24 - Mixture preparation - injection
Arteon 2018 β€, Arteon 2021 β€, Arteon Shooting Brake 2021 β€, Golf 2013 β€, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
β Remove plenum chamber cover β General body repairs,
exterior; Rep. gr. 50; Bulkhead; Assembly overview - plenum
chamber cover.
β Remove plenum chamber bulkhead β General body repairs,
exterior; Rep. gr. 50; Bulkhead; Assembly overview - bulkβ
head.
β Pull seal together with engine wiring harness upwards in
-direction of arrow- out of cable guide.
β If fitted, unclip cover -1- at sides from mountings -2-
-arrows-, and remove it.
β Push guides -2- outwards.
β Remove engine control unit -1- upwards.
β Slide connector locking devices -1- on engine control unit in
-direction of arrow- and pull off both connectors.
6. Engine control unit
475