Volkswagen ID.4: Motor control unit

Assembly overview - motor control unit

1. Bracket for motor control unit

• ⇒ Rep. gr. 93 ; Removing and installing bracket for motor control unit [J623]

2. Engine control unit - J623-

• ⇒ Rep. gr. 93 ; Removing and installing motor control unit [J623]

3. 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-.

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-.

Installing

Install in reverse order of removal.

• Attach bracket for motor control unit - J623- making sure it engages audibly.

 Electric drive motorDe-energising high-voltage system