Aplica-se a: EMO2 (EMS)
O que significa o código de avaria Scania EMO 4458?
Undefined permanent electrical fault detected on the injector coil(s) or the cabling to the injector(s). The fault is detected only when engine is running.
O que causa o DTC 4458 da Scania?
XPI engine: Cables or injector connected to A1_1:4 and B1_1:4 or A1_6:9 and B1_6:9 malfunction. Gas engine: Open circuit or electrical fault on connected injectors
Como reage o sistema?
The system will continuously try to use the injectors regardless of malfunction.
Como resolver o código de avaria Scania EMO 4458?
- XPI engine: Disconnect connectors on the ECU and cables on the coil to the faulty injector(s).
- Measure the resistance over the coil.
- Measure the resistance between high / low side of the coil respectively and the engine block; there should be infinite resistance.
- Check the cabling attachment to the connector and through the cylinder head.
- Measure resistance between high and low side of cables (coil and ECU disconnected); there should be infinite resistance.
- Measure resistance between high / low side cable and the engine block; there should be infinite resistance.
- Gas engine: Check relay for open circuit Check injectors connected to the bank for electrical faults Check wiring Check fuse After repair, restart engine to remove DTCs
Esta informação é apenas orientativa. Siga sempre o manual de oficina do fabricante e as regras de segurança; em caso de dúvida, contacte uma oficina autorizada.