Nissan Juke (2012 year). Service Repair Manual — part 156
LAN-22
< PRECAUTION >
[CAN]
PRECAUTIONS
• Bypass connection is never allowed at the repaired area.
NOTE:
Bypass connection may cause CAN communication error. The
spliced wire becomes separated and the characteristics of twisted
line are lost.
• Replace the applicable harness as an assembly if error is detected on the shield lines of CAN communica-
tion line.
SKIB8767E
Revision: 2011 October
2012 JUKE
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COMPONENT PARTS
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< SYSTEM DESCRIPTION >
[CAN]
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
INFOID:0000000007578603
1.
Multi display unit
2.
ABS actuator and electric unit (con-
trol unit)
3.
A/C auto amp.
4.
ECM
5.
IPDM E/R
6.
TCM
7.
EPS control unit
8.
Combination meter
9.
BCM
10. Data link connector
11.
Steering angle sensor
12. AWD control module
13. Air bag diagnosis sensor unit
JSMIA0447ZZ
Revision: 2011 October
2012 JUKE
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< SYSTEM DESCRIPTION >
[CAN]
SYSTEM
SYSTEM
CAN COMMUNICATION SYSTEM
CAN COMMUNICATION SYSTEM : System Diagram
INFOID:0000000007578604
CAN COMMUNICATION SYSTEM : System Description
INFOID:0000000007578605
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.
• Termination circuits (resistors) are connected across the CAN communication system. When transmitting a
CAN communication signal, each control unit passes a current to the CAN-H line and the current returns to
the CAN-L line. The current flows separately into the termination circuits connected across the CAN commu-
nication system and the termination circuits drop voltage to generate a potential difference between the
CAN-H line and the CAN-L line. The system produces digital signals for signal communications, by using the
potential difference.
CAN Communication Line
JSMIA0583GB
JSMIA0450GB
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SYSTEM
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< SYSTEM DESCRIPTION >
[CAN]
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The CAN communication line is a twisted pair wire consisting of
strands of CAN-L (1) and CAN-L (2) and has noise immunity.
NOTE:
The CAN communication system has the characteristics of noise-resistant because this system produces dig-
ital signals by using the potential difference between the CAN-H line and the CAN-L line and has the twisted
pair wire structure.
Since the CAN-H line and the CAN-L line are always adjacent to
each other, the same degree of noise occurs, respectively, when a
noise (1) occurs. Although the noise changes the voltage, the poten-
tial difference (2) between the CAN-H line and the CAN-L line is
insensitive to noise. Therefore, noise-resistant signals can be
obtained.
CAN Signal Communications
Each control unit of the CAN communication system transmits signals through the CAN communication con-
trol circuit included in the control unit and receives only necessary signals from each control unit to perform
various kinds of control.
• Example: Transmitted signals
JSMIA0382ZZ
JSMIA0383ZZ
JSMIA0584GB
Revision: 2011 October
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< SYSTEM DESCRIPTION >
[CAN]
SYSTEM
• Example: Received signals
NOTE:
The above signal names and signal communications are provided for reference purposes. For CAN communi-
cations signals of this vehicle, refer to
LAN-28, "CAN COMMUNICATION SYSTEM : CAN Communication
.
CAN COMMUNICATION SYSTEM : CAN Communication Control Circuit
INFOID:0000000007578606
CAN communication control circuit is incorporated into the control unit and transmits/receives CAN communi-
cation signals.
JSMIA0585GB
JSMIA0453GB
Component
System description
CAN controller
It controls CAN communication signal transmission and reception, error detection, etc.
Transceiver IC
It converts digital signal into CAN communication signal, and CAN communication signal into digital
signal.
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SYSTEM
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< SYSTEM DESCRIPTION >
[CAN]
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*: These are the only control units wired with both ends of CAN communication system.
CAN COMMUNICATION SYSTEM : CAN System Specification Chart
INFOID:0000000007578607
Determine CAN system type from the following specification chart.
NOTE:
Refer to
LAN-15, "Trouble Diagnosis Procedure"
for how to use CAN system specification chart.
×
: Applicable
VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Check CAN system type from the vehicle shape and equipment.
Noise filter
It eliminates noise of CAN communication signal.
Termination circuit
*
(Resistance of approx. 120
Ω
)
Generates a potential difference between CAN-H and CAN-L.
Component
System description
Body type
Hatch back
Axle
2WD
AWD
Engine
MR16DDT
Transmission
M/T
CVT
Brake control
VDC
Integrated Control system
×
×
×
CAN system type
1
2
3
4
5
6
CAN communication unit
ECM
×
×
×
×
×
×
AWD control module
×
×
ABS actuator and electric unit (control unit)
×
×
×
×
×
×
IPDM E/R
×
×
×
×
×
×
TCM
×
×
×
×
Data link connector
×
×
×
×
×
×
EPS control unit
×
×
×
×
×
×
Combination meter
×
×
×
×
×
×
Steering angle sensor
×
×
×
×
×
×
Air bag diagnosis sensor unit
×
×
×
×
×
×
A/C auto amp.
×
×
×
Multi display unit
×
×
×
BCM
×
×
×
×
×
×
1.
Multi display unit
A.
With Integrated Control system
JSMIA0454ZZ
Revision: 2011 October
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LAN-28
< SYSTEM DESCRIPTION >
[CAN]
SYSTEM
CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart
INFOID:0000000007578608
LAN-14, "How to Use CAN Communication Signal Chart"
for how to use CAN communication signal
chart.
NOTE:
Refer to
for the abbreviations of the connecting units.
T: Transmit
R: Receive
Signal name/Connecting unit
ECM
4WD
ABS
IPDM
-E
TCM
EPS
M&A
STRG
HV
AC
MDU
BCM
A/C compressor request signal
T
R
Accelerator pedal position signal
T
R
R
R
ASCD status signal
T
R
Boost pressure signal
T
R
Closed throttle position signal
T
R
Cooling fan speed request signal
T
R
Engine and CVT integrated control signal
T
R
R
T
Engine coolant temperature signal
T
R
R
Engine speed signal
T
R
R
R
R
R
Engine status signal
T
R
R
R
R
Engine torque signal
T
R
R
Fuel consumption monitor signal
T
R
R
Malfunctioning indicator signal
T
R
Oil pressure warning lamp signal
T
R
Power generation command value signal
T
R
Speed limiter operation signal
T
R
Starter motor relay cut off signal
T
R
R
AWD mode indicator signal
T
R
AWD warning lamp signal
T
R
Current AWD mode signal
T
R
Target engine torque signal
R
T
Torque vectoring indicator signal
T
R
ABS malfunction signal
T
R
ABS operation signal
R
T
R
R
ABS warning lamp signal
T
R
Brake warning lamp signal
T
R
Decel G sensor signal
R
T
R
Request drive torque signal
R
T
Side G sensor signal
R
T
R
Stop lamp switch signal
R
T
R
T
Target throttle position signal
R
T
TCS malfunction signal
R
T
TCS operation signal
R
T
R
VDC malfunction signal
R
T
VDC OFF indicator lamp signal
T
R
Revision: 2011 October
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SYSTEM
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< SYSTEM DESCRIPTION >
[CAN]
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VDC operation signal
R
T
R
VDC warning lamp signal
T
R
Vehicle speed signal (ABS)
R
R
T
R
R
R
R
Yaw rate signal
R
T
Back-up lamp switch signal
*1
T
R
Detention switch signal
T
R
Front wiper stop position signal
T
R
High beam status signal
R
T
Ignition switch ON signal
T
R
R
T
Ignition switch signal
T
R
Interlock/PNP switch signal
T
R
R
T
Low beam status signal
R
T
Push-button ignition switch status signal
T
R
Sleep-ready signal
T
R
T
R
Starter control relay signal
T
R
R
T
Starter relay status signal
T
R
R
T
Starter motor relay/Starter motor control relay con-
trol signal
R
T
ATF temperature signal
R
T
Current gear position signal
R
R
T
CVT indicator signal
T
R
CVT ratio signal
R
T
Input shaft revolution signal
R
R
T
N rage signal
R
T
Next gear position signal
R
T
Output shaft revolution signal
R
R
T
P range signal
R
T
R range signal
R
T
Shift position signal
R
*2
T
R
R
Vehicle speed signal (TCM)
T
R
Drive mode select signal
*3
R
T
EPS operation signal
R
T
EPS warning lamp signal
T
R
Brake fluid level switch signal
R
T
Manual mode shift down signal
R
T
Manual mode shift up signal
R
T
Manual mode signal
R
T
Non-manual mode signal
R
T
Signal name/Connecting unit
ECM
4WD
ABS
IPDM
-E
TCM
EPS
M&A
STRG
HV
AC
MDU
BCM
Revision: 2011 October
2012 JUKE
LAN-30
< SYSTEM DESCRIPTION >
[CAN]
SYSTEM
*1: M/T models
*2: CVT models
*3: With Integrated Control System
*4: With automatic air conditioning
*5: With daytime running light system
Odometer signal
T
R
R
Parking brake switch signal
R
R
T
Seat belt buckle switch signal (driver side) signal
T
R
Vehicle speed signal (Meter)
R
R
R
R
T
R
R
Wake up signal
T
R
Steering angle sensor malfunction signal
R
T
Steering angle sensor signal
R
R
T
Steering calibration signal
R
T
ECO mode signal
R
R
R
T
NORMAL mode signal
R
R
T
SPORT mode signal
R
R
T
A/C display signal
T
R
A/C ECO setting signal
R
T
A/C operation signal
R
T
Rear window defogger switch signal
*4
T
R
Idle up request signal
R
T
A/C ON signal
R
T
Blower fan ON signal
R
T
Buzzer output signal
R
T
Daytime running light request signal
*5
R
T
Door switch signal
R
R
T
Engine start operation indicator lamp signal
R
T
Front fog light request signal
R
T
Front wiper request signal
R
T
High beam request signal
R
R
T
Horn reminder signal
R
T
Key warning lamp signal
R
T
LOCK warning lamp signal
R
T
Low beam request signal
R
T
Low tire pressure warning lamp signal
R
T
Position light request signal
R
R
R
T
Rear window defogger control signal
R
T
R
T
R
*4
Shift P warning lamp signal
R
T
Sleep wake up signal
R
R
R
T
Theft warning horn request signal
R
T
TPMS malfunction warning lamp signal
R
T
Turn indicator signal
R
T
Signal name/Connecting unit
ECM
4WD
ABS
IPDM
-E
TCM
EPS
M&A
STRG
HV
AC
MDU
BCM
Revision: 2011 October
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SYSTEM
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< SYSTEM DESCRIPTION >
[CAN]
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NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
Revision: 2011 October
2012 JUKE
LAN-32
< WIRING DIAGRAM >
[CAN]
CAN SYSTEM
WIRING DIAGRAM
CAN SYSTEM
Wiring Diagram
INFOID:0000000007578609
For connector terminal arrangements, harness layouts, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to
GI-12, "Connector Information"
JCMWA6074GB
Revision: 2011 October
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DIAGNOSIS AND REPAIR WORKFLOW
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< BASIC INSPECTION >
[CAN]
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Interview Sheet
INFOID:0000000007578610
NOTE:
Refer to
LAN-15, "Trouble Diagnosis Procedure"
for how to use interview sheet.
SKIB8898E
Revision: 2011 October
2012 JUKE
LAN-34
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
MALFUNCTION AREA CHART
DTC/CIRCUIT DIAGNOSIS
MALFUNCTION AREA CHART
Main Line
INFOID:0000000007578611
Branch Line
INFOID:0000000007578612
Short Circuit
INFOID:0000000007578613
Malfunction area
Reference
Main line between IPDM E/R and data link connector
Main line between data link connector and air bag diagnosis sen-
sor unit
Main line between data link connector and multi display unit
Malfunction area
Reference
ECM branch line circuit
AWD control module branch line circuit
ABS actuator and electric unit (control unit) branch line circuit
IPDM E/R branch line circuit
TCM branch line circuit
Data link connector branch line circuit
EPS control unit branch line circuit
Combination meter branch line circuit
Steering angle sensor branch line circuit
Air bag diagnosis sensor unit branch line circuit
A/C auto amp. branch line circuit
Multi display unit branch line circuit
BCM branch line circuit
Malfunction area
Reference
CAN communication circuit
Revision: 2011 October
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LAN
MAIN LINE BETWEEN IPDM-E AND DLC CIRCUIT
LAN-35
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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MAIN LINE BETWEEN IPDM-E AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000007578614
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check the following terminals and connectors for damage, bend and loose connection (connector side
and harness side).
-
Harness connector E105
-
Harness connector M77
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the following harness connectors.
-
IPDM E/R
-
Harness connectors E105 and M77
2.
Check the continuity between the IPDM E/R harness connector and the harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the IPDM E/R and the harness connector E105.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Check the continuity between the harness connector and the data link connector.
Is the inspection result normal?
YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the IPDM E/R and the data link connector.
NO
>> Repair the main line between the harness connector M77 and the data link connector.
IPDM E/R harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E13
27
E105
1
Existed
26
6
Existed
Harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M77
1
M4
6
Existed
6
14
Existed
Revision: 2011 October
2012 JUKE
LAN-36
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
MAIN LINE BETWEEN DLC AND A-BAG CIRCUIT
MAIN LINE BETWEEN DLC AND A-BAG CIRCUIT
Diagnosis Procedure
INFOID:0000000007578615
1.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Disconnect the BCM harness connector.
4.
Check the continuity between the data link connector and the BCM harness connector.
-
With Intelligent Key system
-
Without Intelligent Key system
Is the inspection result normal?
YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the data link connector and the air bag diag-
nosis sensor unit.
NO
>> Repair the main line between the data link connector and the air bag diagnosis sensor unit.
Data link connector
BCM harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M4
6
M68
39
Existed
14
40
Existed
Data link connector
BCM harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M4
6
M65
39
Existed
14
40
Existed
Revision: 2011 October
2012 JUKE
LAN
MAIN LINE BETWEEN DLC AND MDU CIRCUIT
LAN-37
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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MAIN LINE BETWEEN DLC AND MDU CIRCUIT
Diagnosis Procedure
INFOID:0000000007578616
1.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Disconnect the following harness connectors.
-
ECM
-
Multi display unit
4.
Check the continuity between the data link connector and the multi display unit harness connector.
Is the inspection result normal?
YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the the data link connector and the multi dis-
play unit.
NO
>> Repair the main line between the data link connector and the multi display unit.
Data link connector
Multi display unit harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M4
6
M90
6
Existed
14
12
Existed
Revision: 2011 October
2012 JUKE
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