The GODIAG GT105 II device is an upgraded version of the GT105 model, specially developed for IMMO activation, ECU diagnosis, programming, external power supply, and quick on-vehicle interventions. It is designed for technicians, auto electricians, workshops, and advanced users who work with immobilizer systems, car keys, ECU modules, and programming equipment.

The main functions of the GT105 II include:

• Vehicle voltage indicator
• CR2032 battery test for remote controls
• Low car battery voltage warning below 11V
• Steering angle synchronization for Toyota
• Auxiliary IMMO activation for Lamborghini ID48

The main function of the GT105 II is the controlled short-circuiting of OBD2 pins for IMMO activation, as well as ECU connection for diagnosis and programming. In addition, it can draw power from the car battery for maintenance or off-site programming work. It acts as a smart OBD2 adapter, useful for powering programming equipment and checking communication on protocol lines.

An important advantage is the digital voltage display, which allows quick monitoring of the vehicle voltage during work. It also includes a low-voltage alarm function, useful when the battery drops below 11V, reducing the risk of errors during programming or diagnosis.

The device features communication indicators for the main protocols: VPW (PIN2), CANH (PIN6), CANL (PIN14) and K-Line (PIN7). When there is data traffic, the corresponding protocol LED flashes, allowing immediate verification of communication between the vehicle and the diagnostic or programming equipment.

The GT105 II also offers independent PIN 4 body GND and PIN 5 signal GND, useful in certain special programming procedures. The construction includes a copper OBD2 socket, 0.75 mm² two-core car DC cable, and a resettable 7A fuse in the DC socket.

Functionally, the GT105 II is designed as a power adapter for IMMO and programming equipment, can draw power from the car battery and convert it to DC 12V to power programming tools and diagnostic devices. It also supports functions such as reading data from BMW, Mercedes, and other car IMMO ECUs on site.

The GT105 II is useful for all "all keys lost" procedures, helping to reset the instrument cluster or anti-theft ECUs. It supports scenarios such as VAG generation 4 and 5 anti-theft systems, Toyota ECU synchronization, and assistance functions for Mitsubishi "all keys lost".

Another important advantage is uninterrupted power supply during car battery replacement.