Section 49 (Transfer Case): Description: Diagnostics

WARNING: This page is about a different car, the 2005 Land Rover Range Rover, 2004 Land Rover Range Rover, and 2003 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.

The transfer box ECU can store fault codes which can be retrieved using TestBook/T4 or a diagnostic tool using ISO9141/KW2000* protocol.

The information is communicated via a diagnostic socket which is located in the fascia, in the driver's side stowage tray. The socket is secured in the fascia panel and protected by a hinged cover.

The diagnostic socket allows the exchange of information between the various ECU's on the bus systems and TestBook/T4 or another suitable diagnostic tool. The information is communicated to the socket via a diagnostic DS2 bus. This allows the retrieval of diagnostic information and programming of certain functions using TestBook/T4 or another suitable diagnostic tool. The transfer box ECU uses Diagnostic Trouble Codes (DTC) which relate to transfer box electrical faults.

Fig 1: Locating Diagnostic Socket

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