Howo, Shacman, Sitrak, Weichai fault codes — online lookup

Howo, Shacman, Sitrak and Weichai scanners show SAE (P0087, P0335, U0155), sometimes SPN/FMI and internal Chinese numbers. ChinaDiag takes the string as on the screen, or a photo. Three free lookups.

What lookup means

Live description, field-frequency causes, check steps, drive/limit/tow. OEM only from the database. Rare code: we say data is thin and do not invent a part number.

Frequent code cards

• P0087 — low common-rail pressure
• P0088 — high common-rail pressure
• P1011 — HP pump metering valve fault
• P0093 — large fuel leak / CAN trap — FMI needed
• P0193 — rail pressure sensor high signal
• P0299 — boost below target
• P2263 — turbo / boost performance
• P2563 — VGT position sensor — range / performance
• P0335 — crankshaft sensor no signal
• P0340 — camshaft sensor (CMP) — FMI needed
• P0401 — EGR insufficient flow
• U0100 — lost communication with engine ECU
• U0101 — lost communication with TCM
• U0155 — lost communication with instrument cluster
• P0562 — system voltage low
• P0201 — cylinder 1 injector circuit
• P0480 — fan control circuit
• P0217 — engine overheat
• P0116 — water in fuel (Weichai table) / not always coolant SAE
• P2509 — intermittent ECM power (no OEM in DB)
• SPN 2898 — without FMI — not a diagnosis (config / Weichai grid)
• SPN 729 — intake heater — FMI needed

Home → model → paste or photo. Weichai internal P0116 is not always SAE coolant.

Look up the code in the service