OBD2 Universal Jumper

GODIAG GT105 is suitable for outdoor work, taking power from the car battery and converting it into a DC12V power supply for 12V charging, programming power, or independent power supply for diagnostic equipment.Full protocol OBD2 universal jumper is used to connect ECU for ECU programming via OBD2 way such as MMPS, FGTECH, KESSV2, BYSHUT, DISPROG, etc.

GODIAG GT105 OBD II Break Out Box OBD Assistant Plus Full Protocol OBD2 Universal Jumper is a one of our OBD2 Universal Jumper Tools, you can buy GODIAG GT105 OBD II Break Out Box OBD Assistant Plus Full Protocol OBD2 Universal Jumper from ukobd2.com.

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GODIAG GT105 OBD II Break Out Box OBD Assistant Plus Full Protocol OBD2 Universal Jumper

Highlights

• Safe and easy to operate for IMMO: Avoids disassembling the ECU of Ford, Mitsubishi, Volkswagen for short-circuit.
• Assist in the detection of communication: When your diagnostic device shows no communication with the vehicle, plug in the GT105 OBD Assistant. If communication between the car and GT105 is successful, the issue may lie with your device—either it's faulty or unsupported.
• Full protocol OBD2 universal jumper: Used to connect ECU for ECU programming via OBD2 with tools such as MPPS, FGTECH, KESS V2, BYSHUT, DISPROG, etc.
• Perfectly replaces XHORSE All Keys lost Cable for Ford 2016– Smart Key AKL with Active Alarm.

Description

The GODIAG ECU IMMO Prog AD GT105 is a specialized connection adapter designed for automobile maintenance technicians, IMMO matching specialists, and ECU programming engineers. It enables short-circuiting via OBD2 for IMMO activation/matching, ECU diagnosis and programming, and draws power from the vehicle’s battery for outdoor on-site repairs.

GT105 features signal communication indicators for PWM+ (PIN2), CANH (PIN6), CANL (PIN14), and K-line (PIN7). When data communication occurs, the corresponding protocol indicator flashes, allowing you to assess communication status and verify whether your diagnostic/programming device is functioning properly.

Ideal for fieldwork, GT105 taps into the car battery and converts it to a stable DC12V power supply—suitable for 12V charging, ECU programming, or powering standalone diagnostic equipment.

Features

• Full-protocol ECU connection line for ECU programming power adjustment.
• OBD2 independent PIN 4 (body GND) and PIN 5 (signal GND) for special module programming.
• PIN4 and PIN5 can be toggled between short-circuit and non-short-circuit modes.
• Standard OBD2 with independent PIN4 and PIN5.
• Pure copper female socket supports repeated insertion/removal and ensures long service life.
• Battery clip treated with eco-friendly salt spray resistance, 0.5mm thick.
• DC car battery cable uses 0.75mm² 2-core sheathed wire, compatible with DC5.5×2.5 and DC5.5×2.1 interfaces.
• DC connector includes a resettable 7A fuse.
• DC power interface designed for dedicated laboratory power connectors.
• High-quality OBD2 universal jumper.

Product Functions

1. The OBD2 universal jumper connects to the ECU, enabling diagnostic and programming equipment (e.g., MPPS, FGTECH, KESS V2) to read/write ECU data, clone ECUs, or perform tuning.
2. GT105 provides uninterrupted power during car battery replacement, preventing ECU data loss. This avoids audio system lockouts, IMMO data loss, remote reset requirements, window regulator recalibration, throttle re-matching, fault light activation, and error code generation. Built-in fuse offers user protection.
3. GT105 draws 12V power directly from the car battery—ideal for powering devices like Xhorse Key Tool Plus Pad, VVDI Prog, CGDI Prog, IM608 for outdoor ECU reading (BMW, Benz, IMMO), or running 12V key-cutting machines for on-site repairs.
4. For Ford vehicles (2016 and newer) with all smart keys lost, GT105 works with VVDI, OBDSTAR, AUTEL, and other IMMO tools to program new keys.
5. Supports “all keys lost” scenarios by waking up the instrument cluster or IMMO ECU—including VAG 4th/5th gen IMMO, Toyota ECU sync, Mitsubishi all-key-lost matching, and IMMO key learning for older Porsche Cayenne models.
6. VPW, CANH, CANL, and K-Line indicator lights visually confirm communication status between vehicle and diagnostic device—quickly verifying if the programming tool is transmitting correctly.
7. Universal jumper includes DC input and safety-protected banana-head ports for high-current programming power.
8. Independent GND4 and GND5 meet special ECU programming needs. (Note: The GND4-5 switch is normally pressed/on. Release it only when separate grounding is required.)
9. Includes ignition simulation switch with 1 large and 2 small ignition-specific cables. Pressing the ING switch supplies 12V to the “ING12V” line—mimicking ignition-on state, which some ECU readers require.
10. Comes with boot GND 4# clip and extensive connectivity: [Dual K-line, dual CAN], 3 large + 2 small power plugs, 4 large + 4 small GND terminals—to fulfill diverse programming setups with MPPS, FGTECH, KESS V2, etc.

Functions Display

A. ECU Module Connection & Programming Power

Connect ECU module with dedicated power supply for reading/writing data, cloning, programming, and tuning.

Connection diagram of the dedicated programming power connector.

MPPS ECU connection diagram

KESS V2 ECU connection diagram

B. Uninterrupted Power During Battery Replacement

GT105 maintains power to preserve ECU data when replacing the car battery.

C. OBD2 Universal Jumper

D. Ford All Keys Lost (2016+)

GT105 works with VVDI, OBDSTAR, AUTEL, and other IMMO tools to program new keys when all smart keys are lost.

Supports “all keys lost” matching—waking up the instrument cluster or IMMO ECU. Compatible with VAG 4th/5th gen IMMO, Toyota ECU synchronization, Mitsubishi all-key-lost procedures, and IMMO key learning for older Porsche Cayenne models.

E. Communication Status Indicators

VPW, CANH, CANL, and K-Line LEDs indicate real-time communication status between vehicle and diagnostic device—allowing quick verification of normal programming/diagnostic function.

F. IMMO Activation for Ford All-Keys-Lost Scenarios

For full key loss on Ford vehicles, disconnect the car battery. Connect the battery negative terminal via OBD PIN5 and link PIN16 to the positive pole of an external 12V battery.

Example: Using Xhorse Key Tool Plus Pad on a post-2017 Ford with all keys lost and alarm active. The tablet cannot proceed until IMMO state is cleared.

If the vehicle is in IMMO lockout: disconnect the battery positive as instructed, then reconnect using the GT105 power adapter cable (as shown in images).

During key matching, external 12V power remains continuously supplied—no disconnection needed.

Follow Xhorse Key Tool Plus Pad prompts to complete Key Programming.

G. Universal All-Keys-Lost Matching

Wake up instrument cluster or IMMO ECU for comprehensive all-keys-lost recovery across supported brands.

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