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Volkswagen ID.4 Owners & Service Manuals

Volkswagen ID.4: Control units

Volkswagen ID.4 (E21) 2021-2025 Service Manual / Electrical system / Wiring / Control units

Overview of fitting locations - control units

Overview of fitting locations - control units, left-hand drive vehicles

Volkswagen ID.4. Overview of fitting locations - control units

  1. Data bus diagnostic interface - J533-
  • ⇒ Rep. gr. 97 ; Removing and installing data bus diagnostic interface [J533]
  1. Trailer detector control unit - J345-
  • Depending on equipment/ version
  • ⇒ General body repairs, exterior; Rep.

    gr. 66 ; Towing bracket; Removing and installing trailer detector control unit [J345]

  1. Entry and start authorisation control unit - J518-
  • ⇒ Rep. gr. 94 ; Removing and installing entry and start authorisation control unit [J518]
  1. Onboard supply control unit - J519-
  2. ⇒ Rep. gr. 97 ; Removing and installing onboard supply control unit [J519]

Overview of fitting locations - control units, right-hand drive vehicles

Volkswagen ID.4. Overview of fitting locations - control units, right-hand drive vehicles

  1. Entry and start authorisation control unit - J518-
  • ⇒ Rep. gr. 94 ; Removing and installing entry and start authorisation control unit [J518]
  1. Trailer detector control unit - J345-
  • Depending on equipment/ version
  • ⇒ General body repairs, exterior; Rep.

    gr. 66 ; Towing bracket; Removing and installing trailer detector control unit [J345]

  1. Data bus diagnostic interface - J533-
  • ⇒ Rep. gr. 97 ; Removing and installing data bus diagnostic interface [J533]
  1. Onboard supply control unit - J519-
  • ⇒ Rep. gr. 97 ; Removing and installing onboard supply control unit [J519]

Assembly overview - onboard supply control unit

Assembly overview - onboard supply control unit, left-hand drive vehicles

Volkswagen ID.4. Assembly overview - onboard supply control unit, left-hand drive vehicles

  1. Entry and start authorisation control unit - J518-
  • ⇒ Rep. gr. 94 ; Removing and installing entry and start authorisation control unit [J518]
  1. Bracket for onboard supply control unit - J519-
  • ⇒ Rep. gr. 97 ; Removing and installing bracket for onboard supply control unit [J519]
  1. On-board supply control unit - J519-
  • ⇒ Rep. gr. 97 ; Removing and installing onboard supply control unit [J519]
  1. Guide for centre electrical connector
  2. Bolt
  • 4.5 Nm

Exploded view - onboard supply control unit, right-hand drive vehicles

Volkswagen ID.4. Exploded view - onboard supply control unit, right-hand drive vehicles

  1. Bracket for onboard supply control unit - J519-
  • ⇒ Rep. gr. 97 ; Removing and installing bracket for onboard supply control unit J519
  1. Onboard supply control unit - J519-
  • ⇒ Rep. gr. 97 ; Removing and installing onboard supply control unit J519
  1. Guide for centre electrical connector

Removing and installing onboard supply control unit [J519]

Removing and installing onboard supply control unit [J519], left-hand drive vehicles

The onboard supply control unit - J519- will henceforth be referred to as "onboard supply control unit".

Removing

If onboard supply control unit is renewed:

  • Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Continued

Vehicles with footwell cover:

  • Remove footwell cover on driver side ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing footwell cover on driver side .

All vehicles (continued)

  • Disconnect electrical connectors -2-.
  • Release retaining springs -3- in direction of -arrow A-.
  • Swing onboard supply control unit -1- out of bracket -4-.

Volkswagen ID.4. Removing and installing onboard supply control unit [J519], left-hand drive vehicles

Installing

Install in the reverse order of removal, observing the following:

If onboard supply control unit has been renewed:

  • Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Removing and installing onboard supply control unit [J519], right-hand drive vehicles

The onboard supply control unit - J519- will henceforth be referred to as "onboard supply control unit".

Removing

If onboard supply control unit is renewed:

  • Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Continued

  • Disconnect electrical connectors -2-.
  • Release retaining springs -3- in direction of -arrow A-.
  • Swing onboard supply control unit -1- out of bracket -4-.

Volkswagen ID.4. Removing and installing onboard supply control unit [J519], right-hand drive vehicles

Installing

Install in the reverse order of removal, observing the following:

If onboard supply control unit has been renewed:

  • Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Removing and installing bracket for onboard supply control unit [J519]

Removing and installing bracket for onboard supply control unit [J519], lefthand drive vehicles

Removing

  • Remove dash panel ⇒ General body repairs, interior; Rep.

    gr. 70 ; Dash panel; Removing and installing dash panel .

  • Remove bracket for fuse holder C - SC- ⇒ Rep. gr. 97 ; Removing and installing fuse holder C [SC], left-hand drive vehicles .
  • Remove onboard supply control unit - J519- ⇒ Rep. gr. 97 ; Removing and installing bracket for onboard supply control unit [J519] .
  • Remove entry and start authorisation control unit - J518- ⇒ Rep. gr. 94 ; Removing and installing entry and start authorisation control unit [J518] .
  • Remove cable tie from bracket -1-.
  • Unscrew bolt -2-.

Volkswagen ID.4. Removing and installing bracket for onboard supply control unit [J519]

  • Release locking devices -1-.
  • Disengage bracket -2- in direction of -arrow A-.
  • Remove bracket -2- in direction of -arrow B-.

Volkswagen ID.4. Removing and installing bracket for onboard supply control unit [J519], lefthand drive vehicles

Installing

Install in the reverse order of removal, observing the following:

Removing and installing bracket for onboard supply control unit [J519], righthand drive vehicles

Removing

The onboard supply control unit - J519- will henceforth be referred to as "onboard supply control unit".

  • Remove dash panel trim on front passenger side ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing dash panel trim on front passenger side .
  • Remove onboard supply control unit - J519- ⇒ Rep. gr. 97 ; Removing and installing bracket for onboard supply control unit [J519] .
  • Unscrew bolts -2- and -3-.
  • Remove strut -1-.

Volkswagen ID.4. Removing and installing bracket for onboard supply control unit [J519], righthand drive vehicles

  • Remove cable tie from bracket -2-.
  • Release locking devices -1-.
  • Disengage bracket -2- in direction of -arrow A-.
  • Remove bracket -2- in direction of -arrow B-.

Volkswagen ID.4. Removing and installing bracket for onboard supply control unit [J519], righthand drive vehicles

Installing

Install in the reverse order of removal, observing the following:

Tightening torques

Removing and installing data bus diagnostic interface [J533]

Data bus diagnostic interface - J533- is referred to hereafter as "diagnostic interface".

Removing

If diagnostic interface is renewed:

  • Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Continued

  • Remove glove compartment cover ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing glove compartment cover .

Only for right-hand drive vehicles

  • Remove dash panel trim on front passenger side ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing dash panel trim on front passenger side

All vehicles (continued)

  • Release locking devices -1-.
  • Pull out diagnostic interface -3- until electrical connectors -2- are accessible.
  • Disconnect electrical connectors -2-.
  • Pull out diagnostic interface -3-.

Volkswagen ID.4. Removing and installing data bus diagnostic interface [J533]

Installing

  • Install in the reverse order of removal, observing the following:

If diagnostic interface has been renewed:

  • Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Removing and installing fan for control unit [V274]

Fan for control unit - V274- will henceforth be referred to as "fan".

Removal and installation are described for a left-hand drive vehicle as an example.

Removing

Vehicles with footwell cover:

  • Remove footwell cover on passenger side ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing footwell cover on passenger side .

All vehicles (continued)

  • Pull off fan -1- with rubber bushes -3- from bracket -2-.
  • Disconnect electrical connector -4-.
  • Remove fan for control unit -1-.

Volkswagen ID.4. Removing and installing fan for control unit [V274]

Installing

Install in reverse order of removal.

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