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EDC 17

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What is EDC?

EDC7 and EDC17 are electronic control units (ECUs) for diesel engines, developed to meet Euro 4~5 and Euro 6 emission regulations, respectively.
Both platforms were developed by Bosch, with MAN adding its own mapping and functions to optimize them for its vehicles.

EDC7 vs EDC17 Comparison

Category EDC7 EDC17
Manufacturer Bosch Bosch
Introduction Period Approx. 2004–2012 Approx. 2012–Present
Emission Compliance Euro 4 ~ Euro 5 Euro 6
Applied Vehicles MAN TGA, TGS, TGX (older models) MAN TGS, TGX (Euro 6)
Applied Engines D20, D26 (Common Rail), some D08 D08, D20, D26, D38
Base ECU Bosch EDC7C32 / C36 Bosch EDC17CV41 / CV52 etc.
Diagnostic Tools MAN-cats II / III MAN-cats III / Premium Tech Tool
OBD Functions Limited Full OBD II compliance

Key Features

  • Adopts 64-bit high-speed processors
  • Improved precision in common rail injection
  • Integrated SCR + DPF control (advanced aftertreatment)
  • Full Euro 6 OBD II diagnostic capability
  • Multi-CAN network processing (engine, aftertreatment, chassis, etc.)
  • Optimized fuel consumption and driving efficiency

Advantages

  • Enhanced real-time data processing capacity
  • High-precision communication with various sensors (e.g., pressure, NOx, EGT, DPF status)
  • More accurate logic-based derate (limp mode)

Main Sensors & Control Items (Common)

Item Description
Rail Pressure Sensor Fuel pressure control
Crank / Cam Sensor Engine speed and ignition timing
NOx Sensor For SCR control
DPF Differential Pressure Sensor Detects DPF clogging
EGT Sensor Monitors exhaust temperature
Throttle Pedal Sensor Drive-by-wire system
AdBlue Dosing Valve Precise urea injection control

Diagnostics & Communication Structure

Category EDC7 EDC17
CAN Communication Single CAN supported Multi-CAN supported
Diagnostic Port ISO 9141 / J1939 J1939 + OBD II
Diagnostic Tools MAN-cats II / III MAN-cats III, external VCI possible
DTC Coverage Limited Detailed classification incl. Sub-DTCs
Data Logging Basic High-resolution logging (graph, real-time comparison, etc.)