CAN bus gateway removing, installing and upgrading - Volkswagen Golf

The role of the Gateway (also known as the Data bus diagnostic interface J533) is the exchange of data between the CAN data bus systems (‘powertrain CAN data bus’, ‘convenience CAN data bus’ and ‘infotainment CAN data bus’) and the conversion of diagnostic data from CAN data bus systems to K-cable and vice versa so the data can be used by vehicle diagnosis, testing and information systems like the dealer VAS tools and Vagcom/VCDS.

For various reasons including power drain issues with third generation head units or the addition of new unsupported modules the CAN bus gateway must be upgraded to a newer revision. This guide covers the replacement of the CAN bus gateway in a 2005 MY06 Volkswagen Golf GTI. The upgrade replaces the 1K0 907 530 E (1K0907530E) with a 1K0 907 530 AA (1K0907530AA).

This process works the same for most Volkswagen models.

1K0 907 530 E (1K0907530E)
Revision: 11

1K0 907 530 AA (1K0907530AA)
Revision: H16

Record current installation list and long coding

Take screen shots or make a note of your installation list in controller 19 – Can Gateway using Vagcom/VCDS. This step is critical unless you want to figure out what you had installed prior to the upgrade. Don’t be tempted to copy down the long code unless you are installing the exact same revision of gateway as different revisions have extra features.

volkswagen_can_bus_gateway_upgrade_installation_list_before_01

Whilst not essential it is worth taking a screen shot of the different screens in the long coding.

volkswagen_can_bus_gateway_upgrade_long_coding_before_01 volkswagen_can_bus_gateway_upgrade_long_coding_before_02

Removing and Installing the Gateway

Remove the key from the ignition or disconnect the car’s battery (the battery disconnect is optional but better safe than sorry)

Remove the footwell cover on the drivers side where the gateway is located – Volkswagen Golf footwell cover drivers side – Removal and  Installation.

The gateway can be in two locations on the Golf. One is above the accelerator pedal and the other is above the clutch pedal (if fitted). The clutch pedal location was used for the first year or so of production.

MY05 gateway location

volkswagen_golf_can_bus_replacement_01 volkswagen_golf_can_bus_replacement_02

Removing

  • Release the connector and pull the connector off the data bus diagnostic interface.
  • Press three securing pins together and push out of holes to release or the holder is hinged and release that.

Installation

  • Install in the reverse order of removal.

Reconnect the battery

MY06 onwards gateway location

volkswagen_gateway_data_bus_diagnostics_removal_01

Removing

  • Release the connector (1) and pull the connector off the data bus diagnostic interface (2).
  • Press securing pins (3) together (see arrows) and push out of holes to release.

Installation

  • Install in the reverse order of removal.

Reconnect the battery

Coding the new gateway

Using the screen shots and notes from earlier you can now recode the gateway. Below are screenshots showing the differences between the two gateways (old gateway on the left and new gateway on the right

volkswagen_can_bus_gateway_upgrade_installation_list_before_02 volkswagen_can_bus_gateway_upgrade_installation_list_after_02

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