CAN COMMUNICATION SYSTEM
CAN COMMUNICATION SYSTEM : 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.
DIAG ON CAN
DIAG ON CAN : System Description
SYSTEM DIAGRAM


DESCRIPTION
"Diag on CAN" is a diagnosis method which uses the CAN communication line for the communication between the control unit and the diagnostic tool.
PrecautionsPrecautions for Trouble Diagnosis CAUTION: Follow the instructions listed below. Failure to do this may cause damage to parts: Never apply 7.0 V or more to the measurement terminal. Use a ...

Component Description ...
Throttle valve closed position
learning
Description
Throttle Valve Closed Position Learning is a function of ECM to learn the
fully closed position of the throttle
valve by monitoring the throttle position sensor output signal. It must be
performed each time harness connector
of electric throttle control actuator or ECM is discon ...
Normal operating condition
Description
FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED)
If the engine speed is above 2,400 rpm under no load (for example, the shift
lever position is neutral and
engine speed is over 2,400 rpm) fuel will be cut off after some time. The exact
time when the fuel is cut off varies
ba ...