| Pin | Signal | Direction | Description | |-----|--------|-----------|-------------| | 1 | NC | - | Not Connected | | 2 | TX | Output | Transmit to ECU (K-Line or CAN Tx) | | 3 | RX | Input | Receive from ECU (K-Line or CAN Rx) | | 4 | NC | - | Not Connected | | 5 | GND | - | Signal Ground (common with vehicle/ECU ground) | | 6 | +12V (Bat) | Input | (for bench mode, 10-14V DC) | | 7 | NC | - | Not Connected | | 8 | NC | - | Not Connected | | 9 | +5V Ref | Output | 5V reference for low-voltage logic (rarely used) |
Dimsport interfaces are not fully ISO 15765-4 compliant on all pins. Some clones require bridging pin 7 to pin 15 – this is incorrect and can damage ECUs. 4. Bench Wiring Example (Bosch EDC16 using Trijektor) To program a Bosch EDC16 ECU on the bench with a Dimsport Trijektor: dimsport pinout
Note: Dimsport has produced many interfaces (MyGenius, Genius V1, Fast, etc.). The pinouts below cover 95% of professional use cases. Always verify with a multimeter before connecting external power. Dimsport interfaces are professional ECU programming tools used for reading/writing via OBD, Boot, BDM, and JTAG. Understanding the pinout is critical for bench mode, power supply, and debugging communication errors. 1. Dimsport Trijektor (Black Edition / Racing) The Trijektor uses a DB9 (Female) connector for the main communication port, plus a barrel jack for external power. DB9 Pinout (DCE - Data Communication Equipment) Viewed from the front of the Dimsport unit (looking into the female DB9 port). | Pin | Signal | Direction | Description
| Pin | Signal | Typical Wire Color (OEM harness) | Function | |-----|--------|----------------------------------|-----------| | 1 | GND | Black | Signal and power ground | | 2 | +12V OUT (ECU Power) | Red | Switched 12V to power the ECU on bench | | 3 | K-Line / L-Line | Yellow | Diagnostic line (ISO 9141, KWP2000) | | 4 | CAN High | Green | CAN bus high (2.5V nominal, 3.5V dominant) | | 5 | CAN Low | Brown | CAN bus low (2.5V nominal, 1.5V dominant) | | 6 | Boot / Mode | White | Boot pin activation (to ground for BDM or boot mode) | | 7 | +12V IN (Genius Power) | Blue | to power the Genius interface | | 8 | BDM / JTAG Data | Orange | Background Debug Mode data line | | 9 | BDM / JTAG Clock | Purple | BDM serial clock | | 10 | Shield / Chassis GND | Bare/Drain | Shield ground (connected to case) | Bench Wiring Example (Bosch EDC16 using Trijektor) To
| Trijektor DB9 Pin | Connect to ECU Pin | |-------------------|--------------------| | Pin 5 (GND) | ECU Pin 2 (Ground) | | Pin 6 (+12V) | ECU Pin 3 (Switched 12V) – via relay or direct | | Pin 2 (TX) | ECU Pin 57 (K-Line) | | Pin 3 (RX) | ECU Pin 57 (same K-Line – loopback) |
| OBD-II Pin | Dimsport Signal | Protocol | |------------|----------------|----------| | 4 | GND | Chassis Ground | | 5 | GND | Signal Ground | | 6 | CAN High | ISO 15765 (CAN) | | 7 | K-Line | ISO 9141 / KWP2000 | | 14 | CAN Low | ISO 15765 (CAN) | | 16 | +12V Battery | Vehicle power (fused) |