GODIAG Breakout Tricore OBD2 Jumper Cable – full protocol bench cable for ECU/IMMO/Instrument (bench) with analog ignition, GND4/GND5 & CAN resistance
The GODIAG Breakout Tricore Cable is an advanced OBD2 jumper/bench cable for professionals working with ECU, IMMO, and instrument clusters on the bench. It is designed to make connections safer, more flexible, and faster when programming or reading control units outside the vehicle. The cable supports standard OBD2 full protocol with dual K-line and dual CAN-line, and is compatible with several popular programming tools – such as MPPS, FGTECH, and KESS V2 (according to product information).
The great strength of the GODIAG cable is that it is built as a breakout/test cable with several dedicated ports: it supports DC power supply and has a banana head for a secure, dedicated power port during programming. You also get independent GND4 and GND5 (for special needs in ECU programming), a boot GND4 clip, and a GND4/GND5 short-circuit switch (some ECUs require short-circuit mode during programming). For even more control, there is an analog ignition switch (IG/IGN simulation) that provides 12V on the line marked ING12V when the button is pressed – practical when the software asks you to turn the ignition on/off during reading/writing.
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Type: GODIAG Tricore OBD2 Jumper Cable (bench/breakout)
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Protocol: OBD2 full protocol (dual K-line, dual CAN)
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Power: DC power supply + banana connector (dedicated programming port)
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Ground: multiple GND connections + independent GND4/GND5 + short-circuit switch
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Ignition: analog ignition switch (ING12V gets 12V when activated)
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Compatibility: MPPS, FGTECH, KESSV2, etc. (according to spec)
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Extra: built-in CAN protocol communication resistance
✅ The right tool for serious bench programming where you want to avoid "DIY" cables and get clear ports for power, ground, and ignition.
What is a breakout/jumper cable for bench?
When programming or diagnosing ECU, IMMO or instrument clusters on the bench, you often need: stable power, correct ground points, correct communication line (CAN/K-line) and sometimes also an ignition signal (IG/IGN). A breakout/jumper cable acts as a central "hub" that makes it easier to connect correctly – with clear connection points and functions that save time and reduce the risk of incorrect connections.
The GODIAG Tricore cable is designed specifically for this and includes both safety and special features required for advanced ECU programming.
Product Features – as per specification
1) Support for DC power supply
The cable supports DC power supply, which is the basis for bench work where the ECU/cluster must receive correct power during read/write operations.
2) Banana connector (banana head) for secure programming power
Dedicated power port with banana connector – described as “super programming dedicated connection port power supply” – for a more stable and secure connection.
3) Independent GND4 & GND5
Separate ground points GND4 and GND5 that meet the needs of certain special ECUs during programming.
4) Boot GND4 clip (compatible with MPPS/FGTECH/KESSV2)
Includes a boot GND4 clip and is stated to be compatible with programming equipment such as MPPS, FGTECH, KESSV2.
5) GND4/GND5 short-circuit switch
A switch to quickly toggle between modes where GND4 and GND5 are short-circuited (some ECUs require this during programming) or kept separate when the ECU needs GND4 and GND5 independently.
6) Analog ignition switch + dedicated ignition cables
Built-in ignition analog switch and cables for ignition simulation (1 large + 2 small ignition cables according to the text).
7) OBD2 full protocol with dual K-line & dual CAN-line
Support for full protocol connection: double K line and double CAN line, as well as multiple power and GND ports: 3 large and 2 small power plugs, 4 large GND and 4 small GND.
8) CAN protocol communication resistance
The cable is equipped with CAN communication resistance, which is relevant in certain bench setups.
GND4/GND5 & short-circuit switch – how it works
Some ECUs require GND4 and GND5 to be connected in a specific way during programming. Therefore, there is a switch:
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Normal mode (switch “pressed”): GND4-5 are short-circuited (indicated by “light” according to the text).
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Separate mode (switch “released”): GND4 and GND5 are kept independent for ECUs that require separate grounding.
This is a special function that saves time when working with different ECU types and avoids re-wiring between jobs.
What is "analog ignition switch"?
The analog ignition switch simulates ignition mode when performing bench programming. According to the product description: when you press the ignition switch, the wire marked ING12V receives 12V. This is useful because some tools and software during reading/writing may ask you to "turn the ignition on/off" – even when the ECU is on the bench.
With this feature, you can follow the instructions without having to move cables or jumper manually.
Full protocol OBD2 – dual K-line & dual CAN-line
The cable supports standard OBD2 full protocol connection with:
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Double K line
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Double CAN line
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Multiple power connections: 3 large + 2 small power plugs
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Multiple ground connections: 4 large GND + 4 small GND
The point is that you get a more flexible breakout solution for various bench setups, where some modules require a different configuration of power/ground.
Compatibility (as per specification)
- Compatible with programming equipment such as MPPS, FGTECH, KESSV2
- Intended for ECU / IMMO / Cluster on bench
- Supports standard OBD2 full protocol (dual K-line / dual CAN-line)
Note: Exact function always depends on the ECU/module you are working with and the programming tool/software you are using.
Step-by-step: Secure bench connection
Bench programming requires a methodical approach. Below is a general guide based on the product's features. Always adapt to the ECU pinout, your tool, and your workflow.
Preparations
- Identify the ECU/IMMO/cluster and obtain the correct pinout/wiring diagram.
- Have a stable DC power supply and correct fusing/current limiting in your bench setup.
- Determine if your ECU requires special handling of GND4/GND5 or boot mode.
1) Select GND4/GND5 mode
- If your ECU requires short-circuiting of GND4/GND5 during programming: set the switch to pressed mode.
- If your ECU requires separate GND4 and GND5: release the switch so that they become independent.
2) Connect power
- Connect the DC power supply via the cable's designated power ports.
- For a secure and stable connection, you can use the dedicated banana connector (banana head) as per the product description.
- Always check polarity and voltage before connecting the module.
3) Connect ground
- Connect GND according to your pinout and use additional ground points if needed (multiple GND ports are available).
- If you are using boot mode: use the boot GND4 clip according to your ECU's procedure.
4) Connect communication lines
- Select the correct protocol/line: K-line or CAN (dual setup available as per spec).
- Ensure that CAN resistance (if needed in your setup) is handled correctly – the cable has CAN communication resistance according to product info.
5) Simulate ignition if necessary
- When the software asks you to turn ignition on/off: use the analog ignition switch.
- When activated, the wire marked ING12V receives 12V as per the description.
6) Perform read/write and work methodically
- Start your tool (MPPS/FGTECH/KESSV2 or other compatible) and follow the procedure for the current ECU.
- If you get communication errors: double-check ground, CAN/K-line, resistance, and ignition simulation.
- Change only one thing at a time when troubleshooting to find the cause faster.
Important: Bench programming can damage the ECU if you supply incorrect voltage or connect incorrectly. Always use the correct pinout and a secure power supply.
FAQ – Frequently Asked Questions
1) What type of cable is this?
A breakout/OBD2 jumper cable for bench work with ECU/IMMO/instrument clusters.
2) What does "full protocol OBD2" mean here?
According to the specification, it supports OBD2 full protocol with dual K-line and dual CAN-line.
3) Which programming tools is it compatible with?
It is stated to be compatible with MPPS, FGTECH, and KESSV2 (according to product text).
4) What are GND4 and GND5?
Extra/individual ground points that some ECUs require during programming. The cable has both independent GND4/GND5 and the ability to short-circuit them via a switch.
5) How does the GND4/GND5 switch work?
The switch is normally pressed for short-circuit mode (indicated by “light” according to the text). If separate GND4/GND5 are needed, release the switch.
6) What is a "boot GND4 clip"?
A clip for boot mode connected to GND4, compatible with several programming tools according to the specification.
7) What is an analog ignition switch?
An ignition simulation: when you press the button, the cable marked ING12V receives 12V. Used when the tool asks you to turn the ignition on/off during bench programming.
8) Does the cable support CAN resistance?
Yes, it is equipped with CAN protocol communication resistance according to the product description.
9) Is this an OBD2 extension cable for regular in-car diagnostics?
It is primarily described for ECU/IMMO/cluster bench and programming. It can be used in many setups but is not the same as a simple extension.
10) Does it require an external power supply?
It supports DC power supply and has dedicated power ports. The exact need depends on your module and your bench setup.
Notices & Disclaimer
- Bench programming carries risks. Incorrect voltage, wrong pinout, or incorrect grounding can damage the ECU/IMMO/cluster.
- Always use the correct pinout and a stable, fused DC power supply with appropriate current limiting.
- GND4/GND5 mode and boot procedures vary between ECU types. Always follow the instructions for the specific ECU you are working with.
- Compatibility with MPPS/FGTECH/KESSV2 is according to product information. Functions and support may vary depending on the version of the tool and software.
