Group 28 Design and Function
Vehicle Electronic Control Unit (VECU)
W2002673
The vehicle electronic control unit (VECU) is part of the
integrated vehicle electronics. The VECU is located in the
cab, but its specific mounting location varies by model.
The main function of the VECU is to collect data from
different cab control units and then to pass this data to
other ECUs in the system (primarily to the engine ECU).
For detailed information about the VECU see Vehicle
Electronic Control Unit, MID 144, Volvo service publica-
tion number PV776–300–610.
The VECU is only used in vehicles equipped with
Volvo engines.
Communication
Equipment
(Expansion
capability)
Instrument Cluster
MIDs 234 & 140
SRS ECU
MID 232
Engine ECU
MID 128
Terminating
Resistor
Diagnostic
connector
Vehicle ECU
MID 144
SAE J1587
/1708
SAE J1939
Transmission ECU
MID 130
Control unit
(Expansion
capability)
Terminating
Resistor
ABS ECU
MID 136
50
To Next Page
