Dongfeng fault codes online

Dongfeng in the field often shares Weichai WP rail/boost codes with Howo/Shacman. On Cummins ISLe enter the code as on the scanner — do not force a Weichai map.

Symptoms

• derate after fueling;
• no start / CKP;
• CAN loss to ECU;
• boost underboost on VGT packs;

Frequent codes

• P0087 — low common-rail pressure
• P0093 — large fuel leak / CAN trap — FMI needed
• P0299 — boost below target
• P0335 — crankshaft sensor no signal
• P0340 — camshaft sensor — FMI needed
• P2563 — VGT position sensor
• P0562 — system voltage low
• U0100 — lost communication with engine ECU
• SPN 2898 — without FMI — not a diagnosis
• SPN 729 — intake heater — FMI needed
• P0088 — high common-rail pressure
• P1011 — HP pump metering valve fault
• P2263 — turbo / boost performance
• U0101 — lost communication with TCM

Field notes

Unique Dongfeng OEM cards are sparse — full SPN/FMI and engine name matter more than the badge.

Fault code table

Few unique Dongfeng rows in the DB. Table — typical WP/Cummins overlaps and network codes. On ISLe enter the Cummins code as on the scanner.

Full step-by-step — enter the code on the home page. If a card exists, click the code.

How to use

On the home page choose Dongfeng, engine, code or photo.

Look up the code in the service