Q45 V8-4.5L (VK45DE) (2002)
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CAN System for ICC Models
System Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data
communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares
information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives
data but selectively reads required data only.
CAN System for VDC Models
System Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data
communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares
information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives
data but selectively reads required data only.
VDC/TCS/ABS Communication Line
VDC/TCS/ABS COMMUNICATION LINE
Description
This CAN communication line is used to control the smooth engine operation of VDC/TCS/ABS during the TCS operation. Pulse signals are exchanged
between ECM and ABS/TCS control unit.
Be sure to erase the malfunction information such as DTC not only in VDC/TCS/ABS control unit but also ECM after the VDC/TCS/ABS related repair.
CAN Communication, A/T
Description
The malfunction information related to A/T (Automatic Transmission) is transferred through the CAN communication line from TCM (Transmission
control module) to ECM. Therefore, be sure to erase the DTC malfunction information not only in TCM (Transmission control module) but also ECM
after an A/T related repair.