Instruments (Diagnostic connector): Description and operation

Diagnostic connector

RHD illustrated

The diagnostic connector allows TestBook to communicate with the vehicle electrical system.

The modules that TestBook can interface with via the diagnostic connector are: l SLABS ECU. l BCU. l ECM (V8 and Td5). l IDM. l ACE ECU. l EAT ECU. l SRS DCU.

TestBook communicates with the ECM, ECU's and the instrument pack for diagnostic purposes and for configuration for a specific options or market. If communications on the diagnostic connector fail for greater than three seconds after the ignition is in position II the gear selected display in the LCD flashes. This applies to both manual and automatic vehicles in all markets.

The instrument pack options configured by TestBook are: l Automatic or manual gearbox fitted. l Diesel or V8 engine fitted. l ACE fitted. l SLS fitted. l Gulf, Japan or ROW markets. l Service engine reset. l Odometer reset. l HDC fitted. l Traction control fitted.

The serial communications link is a bi-directional communications network providing both input and output on the same pin.