Seat Leon >> Control unit for the onboard network - J519- : removal and fitting

SEAT Leon Service and Repair Manual / Electrical system / Wiring / Control units / Control unit for the onboard network - J519- : removal and fitting

Control unit for the onboard network - J519- : removal and fitting

Removing

  • Switch off ignition and all electrical consumers.

Vehicles without access and start authorisation system

  • Remove ignition key, if fitted.

Vehicles with access and start authorisation system

  • Store the ignition key outside the vehicle to prevent the ignition from being switched on unintentionally.

Continued for all vehicles

  • Remove driver's side footwell cover.
  • Unplug connectors -1-, -2- and -3-.

Wiring

  • Unplug electrical connector by pressing catch -1- and moving retaining clip in direction of -arrow-; then detach connector.

Wiring

  • Release retaining springs -arrow-, swivel -onboard supply control unit- out of bracket -5- and remove downwards.

Installing

Installation takes place in reverse order.

Wiring

Removing and installing bracket for onboard supply control unit - J519-

Removing

  • With the ignition switched off, disconnect battery earth cable.
  • Removing dash panel insert .
  • Cut through cable tie -arrow-.
  • Disengage fuse holder C and push to side .
  • Remove front parking aid warning buzzer - H22-.
  • Removing and installing onboard supply control unit - J519-

Wiring

  • Unscrew screws -2-, -3- and -6- .
  • Push bracket -1- as far forward as possible out of the central well, until the centring dowels -4 and 5- hang out.
  • Cut through cable ties -arrows-.
  • Move electrical wiring harness clear at mounting.
  • Take out bracket towards passenger compartment.

Installing

Installation takes place in reverse order.

Wiring

Removing and installing data bus diagnostic interface - J533-

Removing

  • Depending on the configuration, remove the knee airbag on driver's side .
  • Remove footwell vent on driver's side .
  • Unplug electrical connector -1- using a small screwdriver.
  • Release catches -arrows- and pull data bus diagnostic interface - J533- -item 3- downwards off bracket -2-.

Wiring

Note The exact assignment should be gleaned from the latest current flow diagram .

Installing

Installation takes place in reverse order.

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