Renault Premium Diesel ECU 2 II 440 DXi

Typical Defects:
The control unit never enters diagnosis and the vehicle does not start
The control unit detects one or more injectors in short circuit

Error Codes:
1939 - CAN communication error

The Renault OE 20814604 is an engine control unit (ECM) used on industrial vehicles Renault Trucks, particularly on ranges equipped with DXi engines. It belongs to the TRW EMS2 family and is also used in Volvo applications with the same engine.

Technical specifications

• Type: diesel engine management unit (ECM)
• Electronic manufacturer: TRW
• System family: TRW EMS2
• Vehicle network: CAN J1939 (typical use on trucks for data exchange and diagnostics)

DIPA can intervene to overhaul these components thanks to its experience and expertise.

Functions

• Complete management of the diesel engine with control of torque, limits and protection strategies
• Control of injection management and associated safety logic
• Management of turbocharging and emissions functions based on the vehicle and DXi engine configuration
• Supervision of sensors and plausibility (pressures, temperatures, speeds, torque request signals) with possible degraded modes

Model applications

• Renault Trucks Premium

Typical faults

• The control unit never enters diagnostics and the vehicle will not start
• The control unit detects one or more injectors in short circuit

Error Codes:
1939 - CAN communication error

Final conclusions

The Renault 20814604 is a TRW EMS2 engine control unit typical of the Renault Trucks Premium platform.

DIPA offers a wide range of spare parts dedicated to the Truck sector, construction vehicles and industrial equipment. Not only that: it has remanufactured components with performance equivalent to new, which can provide savings on replacement while contributing to environmental protection through the circular economy. If the part you need is not available, don't worry: DIPA can overhaul your part "on demand", returning full functionality and safety in a short time.