Yutong ZK6122 fault codes

Yutong ZK6122 bus — engine P/SPN may overlap truck cards; body modules need system ID from the scanner.

Engines: Bus engine + body network.

Frequent codes

Engine derate codes, cluster U-codes, door/lamp modules.

• 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

Name engine vs BCU in the form.

Fault code table

Frequent codes for Yutong Zk6122. Cards link when a public page exists.

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

How to use

home page — Yutong, ZK6122. Fault codes.

Look up the code in the service