| 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) |
| 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 pinout
| 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
