Volkswagen ID.4: Motor control unit
Assembly overview - motor control unit

- Bracket for motor control
unit
- ⇒ Rep. gr. 93 ; Removing
and installing
bracket for motor control
unit [J623]
- Engine control unit - J623-
- ⇒ Rep. gr. 93 ;
Removing and installing
motor control unit
[J623]
- Electrical connector
Removing and installing motor control unit [J623]
Removing
If the motor control unit - J623- is renewed, perform the test
plan for the renewal of the motor control unit:
- Carry out function "Renew control unit" using ⇒ Vehicle diagnostic
tester ⇒ Rep. gr. 00 ; Access to diagnoses .
Continued
- Disconnect battery ⇒ Electrical system; Rep. gr. 27 ; Battery;
Disconnecting and connecting battery .
- Remove lower A-pillar trim ⇒ General body repairs, interior;
Rep. gr. 70 ; Trims, interior; Removing and installing lower
A-pillar trim .
- Disconnect electrical connectors -2-.
- Release bracket -1- -arrow- in direction of passenger compartment,
and pull out motor control unit - J623- -3-.
![Volkswagen ID.4. Removing and installing motor control unit [J623]](images/manuals/353/volkswagen_id_4_motor_control_unit_2326.webp)
Installing
Install in reverse order of removal, observing the following:
If the motor control unit - J623- has been renewed, perform the
test plan for the renewal of the motor control unit:
- Carry out function "Renew control unit" using ⇒ Vehicle diagnostic
tester ⇒ Rep. gr. 00 ; Access to diagnoses .
Removing and installing bracket for motor control unit [J623]
Removing
- Remove motor control unit - J623- ⇒ Rep. gr. 93 ; Removing
and installing motor control unit [J623] .
- Press together locking devices in direction of -arrow-.
- Remove bracket for motor control unit - J623- -1-.
![Volkswagen ID.4. Removing and installing bracket for motor control unit [J623]](images/manuals/353/volkswagen_id_4_motor_control_unit_2327.webp)
Installing
Install in reverse order of removal.
- Attach bracket for motor control unit - J623- making sure it
engages audibly.