1A-6 Engine General Information and Diagnosis:
CAN communication system uses the serial communication in which data is transmitted at a high speed. It uses a
twisted pair of two communication lines for the high-speed data transmission. As one of its characteristics, multiple
control modules can communicate simultaneously. In addition, it has a function to detect a communication error
automatically. Each module reads necessary data from the received data and transmits data. ECM communicates
control data with each control module as follows.
ECM Transmission Data
NOTE
In communication between ECM and combination meter, between ECM and keyless start control
module (if equipped) and between ECM and 4WD control module (if equipped), data is transmitted only
from ECM to combination meter, keyless start control module (if equipped) and 4WD control module (if
equipped). (Combination meter, keyless start control module (if equipped) and 4WD control module (if
equipped) does not transmit data to ECM.)
Engine torque signal
Accelerator pedal position
Engine speed
Throttle position
Stand by to engage air
conditioning compressor
Top gear inhibit
Torque converter clutch
control inhibit
Lock up / slip control
inhibit signal
Immobilizer indication
Engine emissions
related malfunction
Engine coolant
temperature
Fuel level percent
Cruise control signal
(if equipped)
Cruise control system
indication (if equipped)
Vehicle speed
Brake pedal switch
active
Air conditioning compressor
clutch engaged
(if equipped with A/C)
A/C refrigerant pressure
Distance kilometers per
liter of fuel
Engine diagnostic trouble
codes (if equipped with
diagnosis connector)
TCM
(for A/T
model)
BCM
4WD control
module
(if equipped)
Combination
meter
Keyless start
control module
(if equipped)
ABS hydrauric
unit/control
module assembly
(for vehicle
without ESP )
Transmit data of ECM
ESP
control module
(for vehicle
with ESP )
R
R
R
I5JB0D110001-02
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