Nissan Primera P12. Instruction — part 606
LT-134
CAN COMMUNICATION
CAN COMMUNICATION
PFP:23710
System Description
EKS009OK
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic 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 Communication Unit
EKS009OL
×
:Applicable
Body type
Sedan/Wagon/Hatch back
Axle
2WD
Engine
QR20DE
QG18DE
QR20DE
QG18
DE
YD22
DDTi
QG16
DE
QG18
DE
QR20
DE
YD22D
DTi
Transmission
CVT
A/T
6M/T
5M/T
6M/T
5M/T
6M/T
Brake control
ESP
ABS
ABS
ESP
ESP
ABS
ICC system
Appli-
cable
Not applicable
Appli-
cable
Not applicable
CAN communication unit
ECM
×
×
×
×
×
×
×
×
×
×
×
×
×
TCM
×
×
×
×
×
ESP/TCS/ABS
control unit
×
×
×
×
×
×
×
ABS actuator
and electric unit
(control unit)
×
×
×
×
×
×
Data link con-
nector
×
×
×
×
×
×
×
×
×
×
×
×
×
Steering angle
sensor
×
×
×
×
×
×
×
Smart entrance
control unit
×
×
×
×
×
×
×
×
×
×
×
×
×
ICC unit
×
×
ICC sensor
×
×
Combination
meter
×
×
×
×
×
×
×
×
×
×
×
×
×
Can communica-
tion type
CAN COMMUNICATION
LT-135
C
D
E
F
G
H
I
J
L
M
A
B
LT
TYPE 1/TYPE 8
System diagram
●
LHD models (Type 1)
●
RHD models (Type 8)
Input/output signal chart
T: Transmit R: Receive
SKIA1526E
SKIA1540E
Signals
ECM
TCM
ESP/
TCS /
ABS con-
trol unit
Steering
angle
sensor
Smart
entrance
control
unit
ICC unit
ICC sen-
sor
Combina-
tion
meter
Engine speed signal
T
R
R
R
Accelerator pedal position signal
T
R
R
R
Closed throttle position signal
T
R
R
ICC steering switch signal
T
R
Shift pattern signal
T
R
Parking brake switch signal
T
R
ICC system display signal
T
R
ICC sensor signal
R
T
ESP operation signal
R
R
T
R
TCS operation signal
R
R
T
R
ABS operation signal
R
R
T
R
Stop lamp switch signal
R
T
Steering wheel angle sensor signal
R
T
Wheel speed sensor signal
T
R
Rear window defogger signal
R
T
Heater fan switch signal
R
T
Air conditioner switch signal
R
T
Primary pulley revolution signal
R
T
R
R
Secondary pulley revolution signal
R
T
R
R
LT-136
CAN COMMUNICATION
ICC operation signal
R
T
Brake switch signal
R
T
MI signal
T
R
Current gear position signal
T
R
Engine coolant temperature signal
T
R
R
Fuel consumption signal
T
R
Vehicle speed signal
R
T
T
R
R
T
Seat belt reminder signal
R
T
Lighting switch position signal
T
R
Flashing indicator signal
T
R
Engine cooling fan speed signal
T
R
Child lock indicator signal
T
R
Door switches state signal
T
R
A/C compressor signal
T
R
Signals
ECM
TCM
ESP/
TCS /
ABS con-
trol unit
Steering
angle
sensor
Smart
entrance
control
unit
ICC unit
ICC sen-
sor
Combina-
tion
meter
CAN COMMUNICATION
LT-137
C
D
E
F
G
H
I
J
L
M
A
B
LT
TYPE 2/TYPE 9
System diagram
●
LHD models (Type 2)
●
RHD models (Type 9)
Input/output signal chart
T: Transmit R: Receive
SKIA1527E
SKIA1541E
Signals
ECM
TCM
ESP/ TCS /
ABS control
unit
Steering
angle sensor
Smart
entrance
control unit
Combina-
tion meter
Engine speed signal
T
R
R
Accelerator pedal position signal
T
R
R
Closed throttle position signal
T
R
ESP operation signal
R
R
T
TCS operation signal
R
R
T
ABS operation signal
R
R
T
Stop lamp switch signal
R
T
Steering wheel angle sensor signal
R
T
Rear window defogger signal
R
T
Heater fan switch signal
R
T
Air conditioner switch signal
R
T
Primary pulley revolution signal
R
T
Secondary pulley revolution signal
R
T
MI signal
T
R
Current gear position signal
T
R
Engine coolant temperature signal
T
R
Fuel consumption signal
T
R
Vehicle speed signal
R
T
T
R
R
T
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