Such a connection exists at the CD changer power plug (trunk, left side). It's made to connect to any source which has both power and access to the car's i-bus data line. To begin, the Resler interface offers no specific interface-to-car connection, only loose wires. Installing the software is straightforward. You'll also need to purchase the 'Resler' USB interface ( ), about $35, to connect your computer to your car. Without a cross reference to convert hex codes to an understandable format, they're sadly of no value.ĭownload NavCoder onto an old laptop computer ( ). Unfortunately, i-bus fault codes are reported in raw hexadecimal format and thus are undecipherable to most users. NavCoder also reports fault codes for all i-bus devices and, in version 3, provides for the clearing of those codes. NavCoder version 3 was introduced in December 2017 and includes a refined user interface. Running on Windows only (not Apple OS), NavCoder can 'see' any device that communicates on your car's i-bus (such as your radio). 'Relser' USB Interface, $35 (see Procedure below)įreely available for many years and popular with BMW enthusiasts, NavCoder software allows the user to program (configure) navigation computers, telephone control units (TCUs), daytime running lights, and other devices and settings.Old laptop computer (ex: Dell D610, IBM ThinkPad, etc).
