Shacman usually runs Weichai WP10/WP12/WP13, sometimes Cummins ISM11. The codes are the same family as Howo and Sitrak, but the harness, rail plugs and CKP/CMP layout differ. ChinaDiag uses the tractor model so a “universal” tip is not mixed up with what sits on an F3000 or X3000.
What usually lights up
Low fuel pressure, metering-valve fault, crankshaft sensor, lost cluster comms. ISM11 adds its own Cummins codes. Type a P/U/C code or SPN/FMI — the service reads both if they are in the database.
How to use it
On the home page pick Shacman and the engine, year, code or photo. The answer: description, causes by frequency, OEM only from the database, and drive / limit / tow.