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Table of Contents > Mixture preparation - injection > Engine control unit

VW Tiguan 4-cyl. Direct Injection Engine (1.8l and 2.0l, EA 888 gen III) ➜ Engine control unit

Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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  
⇒ a6.2 nd installing engine (motor) control unitJ623 with protec‐  
tive housing”, page 477  
6.1  
Removing and installing engine control  
unit -J623-  
⇒ a6.1.2 nd installing engine control unitJ623, Sharan”, page  
474  
6.1.1  
Removing and installing engine control  
unit -J623-, Golf, Passat, Touran, Ti‐  
guan, Arteon  
Special tools and workshop equipment required  
♦ Vehicle diagnostic tester  
Removing  
– If the engine control unit is to be renewed, switch on ignition,  
and select the following menu options on vehicle diagnostic  
tester:  
0001 - Engine electronics, functions  
0001 - Renew engine control unit  
– 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 (mo‐  
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 ⇒ Electrical system; Rep.  
gr. 27; Battery; Disconnecting and connecting battery.  
– Release fastener -arrow A-, and remove engine control unit  
-J623- -arrow B-.  
– Release and pull off connectors for engine (motor) control  
unit -J623-.  
6. Engine control unit  
473  
theMANUALS.org  
   
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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:  
– Insert lower edge of engine control unit -J623- into bracket  
-arrow A-, and engage engine control unit in bracket at up‐  
per edge.  
When doing this, ensure that lugs of engine control unit en‐  
gage in notches at top and bottom of bracket -arrows B-.  
– Connect battery ⇒ 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:  
– Switch on ignition, and select following menu option on vehi‐  
cle diagnostic tester:  
0001 - Engine electronics, functions  
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 ⇒ page  
480 .  
Removing  
– If the engine control unit is to be renewed, switch on ignition,  
and select the following menu option on vehicle diagnostic  
tester:  
0001 - Engine electronics, functions  
0001 - Renew engine control unit  
– Switch off ignition and remove key from ignition lock.  
– Remove windscreen wiper arms: ⇒ Electrical system; Rep.  
gr. 92; Windscreen wiper system; Removing and installing  
windscreen wiper arms.  
474  
Rep. gr.24 - Mixture preparation - injection  
theMANUALS.org  
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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  
– Remove plenum chamber cover ⇒ General body repairs,  
exterior; Rep. gr. 50; Bulkhead; Assembly overview - plenum  
chamber cover.  
– Remove plenum chamber bulkhead ⇒ General body repairs,  
exterior; Rep. gr. 50; Bulkhead; Assembly overview - bulk‐  
head.  
– Pull seal together with engine wiring harness upwards in  
-direction of arrow- out of cable guide.  
– If fitted, unclip cover -1- at sides from mountings -2-  
-arrows-, and remove it.  
– Push guides -2- outwards.  
– Remove engine control unit -1- upwards.  
– Slide connector locking devices -1- on engine control unit in  
-direction of arrow- and pull off both connectors.  
6. Engine control unit  
475  
theMANUALS.org