Cause: Microsoft’s automatic driver update installs FTDI v3.x, which blocks counterfeit chips. Solution:
For advanced users, monitor the raw bus traffic using RealTerm: opcom 167 firmware work
| Function | Performance (v167) | Notes | |----------|-------------------|-------| | Read/Clear DTCs | Excellent | Supports UDS, KWP2000, and CAN bus. Covers engine, ABS, airbag, HVAC, radio, UCH (body computer). | | Live Data | Good | Fast refresh on CAN vehicles (2008+); slightly laggy on older K-line. No high-speed graphing. | | Actuator Tests | Very Good | Works for fuel pumps, cooling fans, injectors, windows. No support for advanced ADAS. | | ECU Programming | Limited | Can flash some ECUs (e.g., EDC16, ME7.6) but risky on newer MCU-locked modules. No SPS (Service Programming System) passthrough for GM servers. | | Function | Performance (v167) | Notes |
Surprisingly, Opcom 1.45 firmware (latest) may fail on 1990s KWP2000 cars (Vectra B, Calibra). Workaround: Score: 7
Yes, with caveats.
Score: 7.8/10
Value: Excellent for €30–50 clone interfaces.
Risk Level: Medium (avoid ECU flashing unless you have backup).
Originally, Opcom was a professional-level diagnostic tool for the GM Europe platform. Due to its popularity, the Chinese market produced clones (replicas). The "167" designation typically refers to the hardware found on PCBs labeled OP-COM 09.2012 or similar, using a particular PIC microcontroller and FTDI USB-to-serial chip.