Qashqai J11. Driveline — part 2
SYSTEM
DLN-17
< SYSTEM DESCRIPTION >
[TRANSFER: TY21C]
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If there is a significant difference in pressure or wear between tires, full vehicle performance is not available.
Tire conditions are detected, and LOCK mode may be prohibited, or else speeds at which LOCK mode is
enabled may be restricted.
4WD SYSTEM : Circuit Diagram
INFOID:0000000010755233
4WD SYSTEM : Fail-Safe
INFOID:0000000010755234
If any malfunction occurs in 4WD electrical system, and control unit detects the malfunction, 4WD warning on
information display (combination meter) is displayed to indicate system malfunction. And then 4WD control
unit controls becomes the fail-safe mode depending on DTC.
JSDIA6027GB
DLN-18
< SYSTEM DESCRIPTION >
[TRANSFER: TY21C]
SYSTEM
4WD SYSTEM : Protection Function
INFOID:0000000010755235
4WD system activates its protection function (shuts down 4WD system temporarily) if 4WD system detects
high load continuously or the front wheel tire size differs from the rear tire size. (4WD system is automatically
restored if 4WD system no longer detects any overload or the tire size difference is eliminated.)
NOTE:
• If the 4WD warning displays during driving but remains not displayed after the engine is restarted, the syste-
mis normal. If it again displays after driving for some time, vehicle must be inspected.
• When there is a difference of revolution speed between the front and rear wheel the shift occasionally
changes to direct 4-wheel driving conditions automatically. This is not a malfunction.
INFORMATION DISPLAY (COMBINATION METER)
INFORMATION DISPLAY (COMBINATION METER) : 4WD Warning
INFOID:0000000010755236
DESIGN/PURPOSE
4WD warning is displayed when the 4WD system has a malfunction. 4WD warning indicates that the vehicle is
in fail-safe mode or protection function mode.
SYNCHRONIZATION WITH MASTER WARNING LAMP
Applicable
For master warning lamp, refer to
WCS-7, "WARNING CHIME SYSTEM : System Description"
DTC
Vehicle condition
•C1201
•C1204
•C1209
•P1804
•P1809
•P1811
•P181F
4WD control changes to front-wheel drive immediately, then 4WD control stops, and the vehicle
becomes front-wheel drive.
•C1203
•C1210
•P1808
•P181D
•U1000
•U1010
4WD control changes to front-wheel drive gradually (rear-wheels still have some driving torque),
then 4WD control stops, and the vehicle becomes front-wheel drive.
•P181B
No impact to vehicle behavior.
DTC
4WD warning (on infor-
mation display)
Error area and root cause
Contents of protection
function
—
Refer to
Rear final drive assembly in protection mode. It is not malfunction.
(Internal temperature rise of electronic controlled coupling)
Shuts down 4WD sys-
tem temporarily
(Front wheel drive)
—
Malfunction in each tire or different tire diameter
Symbol
Message
Condition
4WD Error
See Owner’s Manual
4WD system malfunction.
4WD High Temp.
Stop vehicle
Protection function is activated due to heavy load to
electric controlled coupling. (4WD system is not
malfunctioning and 4WD system changes to front
wheel drive.)
Tire Size Incorrect
See Owner’s Manual
Large difference in diameter of front/rear tires.
JPNIA1896ZZ
SYSTEM
DLN-19
< SYSTEM DESCRIPTION >
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SYSTEM DIAGRAM
SIGNAL PATH
• The 4WD control unit judges and decides a mode from among normal mode, fail-safe mode, and protection
function mode, according to signals received from each switch, sensor, and control unit.
• The 4WD control unit transmits 4WD warning signal to the combination meter via CAN communication when
judging fail-safe mode or protection function mode.
• The combination meter displays 4WD warning on the information display when receiving 4WD warning sig-
nal transmitted from the 4WD control unit.
WARNING CONDITION
4WD warning is displayed when the 4WD system goes into fail-safe mode or protection function mode.
WARNING CANCEL CONDITION
When any of the conditions listed below is satisfied:
• Ignition switch is in a position other than ON.
• 4WD warning becomes invisible when the 4WD system returns to normal.
INFORMATION DISPLAY (COMBINATION METER) : 4WD Torque Distribution Indica-
tor
INFOID:0000000010755237
DESIGN/PURPOSE
WARNING/INDICATOR/CHIME LIST
WARNING/INDICATOR/CHIME LIST : Warning Lamp/Indicator Lamp
INFOID:0000000010755238
JSDIA6028GB
Design
Purpose
Displays the drive torque distribution to the front and rear wheels while driving and informs
the driver of this.
NOTE:
The driving force distribution may not match actual one. This is not a system malfunction.
JSNIA6722ZZ
Name
Design
Layout/Function
4WD indicator lamp
WCS-5, "Component Parts Location"
DLN-20
< SYSTEM DESCRIPTION >
[TRANSFER: TY21C]
SYSTEM
WARNING/INDICATOR/CHIME LIST : Warning/Indicator (On Information Display)
INFOID:0000000010755239
LOCK indicator lamp
WCS-5, "Component Parts Location"
DLN-20, "WARNING/INDICATOR/CHIME LIST : Warning/Indica-
Name
Design
Layout/Function
Name
Function
4WD warning
Refer to
DLN-18, "INFORMATION DISPLAY (COMBINATION METER) : 4WD Warn-
4WD torque distribution indicator
DLN-19, "INFORMATION DISPLAY (COMBINATION METER) : 4WD Torque
DIAGNOSIS SYSTEM (4WD CONTROL UNIT)
DLN-21
< SYSTEM DESCRIPTION >
[TRANSFER: TY21C]
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DIAGNOSIS SYSTEM (4WD CONTROL UNIT)
CONSULT Function
INFOID:0000000010755240
APPLICATION ITEMS
CONSULT can display each diagnostic item using the diagnostic test modes as follows.
*: The following diagnosis information is erased by erasing.
• DTC
• Freeze frame data (FFD)
ECU IDENTIFICATION
4WD control unit part number can be read.
SELF DIAGNOSTIC RESULT
.
When “PRSNT” is displayed on self-diagnosis result.
• The system is presently malfunctioning.
When “PAST” is displayed on self-diagnosis result.
• System malfunction in the past is detected, but the system is presently normal.
FREEZE FRAME DATA (FFD)
The following vehicle status is recorded when DTC is detected and is displayed.
Diagnostic test mode
Function
ECU Identification
4WD control unit part number can be read.
Self Diagnostic Result
Self-diagnostic results and freeze frame data can be read and erased quickly.*
Data Monitor
Input/Output data in the 4WD control unit can be read.
Active Test
Diagnostic Test Mode in which CONSULT drives some actuators apart from the 4WD control unit
and also shifts some parameters in a specified range.
Work support
This mode enable a technician to adjust some devices faster and more accurately by following the
indication on the CONSULT.
Monitor item (Unit)
Remarks
ODO/TRIP METER (km/h or mph)
Odometer value via CAN communication line is displayed.
ABS OPERATION SIG (On/Off)
ABS operation status via CAN communication line is displayed.
VDC OPERATION SIG (On/Off)
VDC operation status via CAN communication line is displayed.
TCS OPERATION SIG (On/Off)
TCS operation status via CAN communication line is displayed.
HI COEF FRIC FLG 1 (LOW/HIGH)
Measured friction of load is displayed when vehicle starts.
HI COEF FRIC FLG 2 (LOW/HIGH)
Measured friction of load is displayed when vehicle during deceleration.
IGN VOLT (V)
Ignition voltage supplied to 4WD control unit is displayed.
TARGET SOL CRNT (A)
4WD solenoid target current is displayed.
SOLENOID CRNT (A)
4WD solenoid control current is displayed.
QUASI VEHICLE SPEED (km/h or mph)
Vehicle speed calculated by 4WD control unit is displayed.
FRONT WHEEL SPEED (km/h or mph)
Front wheel speed average calculated by 4WD control unit is displayed.
REAR WHEEL SPEED (km/h or mph)
Rear wheel speed average calculated by 4WD control unit is displayed.
SLCT LVR POSI
Current transmission gear via CAN communication line is displayed.
OPERATION MODE
Control status of 4WD mode is displayed.
FRONT RH WHEEL SPEED (km/h or mph)
Wheel speed calculated by front RH wheel sensor signal is displayed.
FRONT LH WHEEL SPEED (km/h or mph)
Wheel speed calculated by front LH wheel sensor signal is displayed.
REAR RH WHEEL SPEED (km/h or mph)
Wheel speed calculated by rear RH wheel sensor signal is displayed.
REAR LH WHEEL SPEED (km/h or mph)
Wheel speed calculated by rear LH wheel sensor signal is displayed.
DLN-22
< SYSTEM DESCRIPTION >
[TRANSFER: TY21C]
DIAGNOSIS SYSTEM (4WD CONTROL UNIT)
DATA MONITOR
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
ACTIVE TEST
Use this mode to determine and identify the details of a malfunction based on self-diagnostic results or data
monitor. 4WD control unit gives drive signal to actuator with receiving command from CONSULT to check
operation of actuator.
CAUTION:
Never energize continuously for a long time.
WORK SUPPORT
Monitor item (Unit)
Remarks
STOP LAMP SW (On/Off)
Stop lamp switch signal status via CAN communication line is displayed.
ENG SPEED SIG (Run/Stop)
Engine status is displayed.
ETS ACTUATOR (On/Off)
Operating condition of 4WD actuator relay (integrated in 4WD control unit) is displayed.
4WD WARN LAMP (On/Off)
Control status of 4WD warning (on information display) is displayed.
4WD MODE SW (AUTO/LOCK/2WD)
4WD mode switch status is displayed.
4WD MODE MON (AUTO/LOCK/2WD)
Control status of 4WD is displayed.
DIS-TIRE MONI (mm)
Improper size tire installed condition is displayed.
PARKING BRAKE SW SIG (On/Off)
Parking switch signal status via CAN communication line is displayed.
4WD MODE SW (2WD) (On/Off)
4WD mode switch (2WD position) signal is displayed.
4WD MODE SW (AUTO) (On/Off)
4WD mode switch (AUTO position) signal is displayed.
4WD MODE SW (LOCK) (On/Off)
4WD mode switch (LOCK position) signal is displayed.
READY (Off/Running)
This item is not equipped, but displayed.
BATTERY VOLT (V)
Power supply voltage value of 4WD control unit is displayed.
THRTL POS SEN (%)
Throttle opening status is displayed.
ETS SOLENOID (A)
Monitored value of current at 4WD solenoid is displayed.
FR RH SENSOR (km/h or mph)
Wheel speed calculated by front RH wheel sensor signal is displayed.
FR LH SENSOR (km/h or mph)
Wheel speed calculated by front LH wheel sensor signal is displayed.
RR RH SENSOR (km/h or mph)
Wheel speed calculated by rear RH wheel sensor signal is displayed.
RR LH SENSOR (km/h or mph)
Wheel speed calculated by rear LH wheel sensor signal is displayed.
Test item
Condition
Description
SOLENOID
(Detects 4WD solenoid)
• Vehicle stopped
• Engine running
• No DTC detected
Change command current value to 4WD solenoid, and then change driving
mode. (Monitor value is normal if it is within approx.
±
10% of command value.)
• Qu: Increase current value in increments of 0.2 A
• Qd: Decrease current value in increments of 0.2 A
• UP: Increase current value in increments of 0.02 A
• DOWN: Decrease current value in increments of 0.02 A
Item
Usage
UNIT CHARACTERISTICS DATA
Display the unit characteristics of electric controlled coupling written to 4WD control unit.
UNIT CHARACTERISTICS WRITE
Writes the unit characteristics of electric controlled coupling to 4WD control unit.
4WD CONTROL UNIT
DLN-23
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: TY21C]
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ECU DIAGNOSIS INFORMATION
4WD CONTROL UNIT
Reference Value
INFOID:0000000010755241
VALUES ON THE DIAGNOSIS TOOL
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Monitor item
Condition
Value/Status
STOP LAMP SW
Brake pedal: Depressed
On
Brake pedal: Released
Off
ENG SPEED SIG
Engine stopped
(Engine speed: Less than 400 rpm)
Stop
Engine running
(Engine speed: 400 rpm or more)
Run
ETS ACTUATOR
Engine stopped (Ignition switch: ON)
Off
Engine running
On
4WD WARN LAMP
4WD warning (on information display): Displayed
On
4WD warning (on information display): Not displayed
Off
4WD MODE SW
4WD mode switch: 2WD
2WD
4WD mode switch: AUTO
AUTO
4WD mode switch: LOCK
(State of hold of LOCK position)
LOCK
4WD MODE MON
4WD mode switch: 2WD
2WD
4WD mode switch: AUTO
AUTO
4WD mode switch: AUTO
⇒
LOCK
(When switching to LOCK mode)
Vehicle speed below 10 km/h (6 mph)
AUTO
⇒
LOCK
Vehicle speed above 10 km/h (6 mph)
AUTO
4WD mode switch: LOCK
⇒
AUTO
(When switching to AUTO mode)
Vehicle speed below 10 km/h (6 mph)
LOCK
⇒
AUTO
DIS-TIRE MONI
Vehicle running with normal size tire installed
0 – 4 mm
Vehicle running with improper size tire installed (Front/rear tire size differ-
ence, wear condition)
4 – 8 mm, 8 – mm
PARKING BRAKE SW
SIG
Parking brake operated
On
Parking brake not operated
Off
4WD MODE SW (2WD)
4WD mode switch: 2WD
On
4WD mode switch: Except 2WD
Off
4WD MODE SW (AUTO)
4WD mode switch: AUTO
On
4WD mode switch: Except AUTO
Off
4WD MODE SW (LOCK)
4WD mode switch: LOCK
(State of hold of LOCK position)
On
4WD mode switch: Except LOCK
Off
READY
Always
Off
BATTERY VOLT
Always
Battery voltage
THRTL POS SEN
When depressing accelerator pedal
(Value rises gradually in response to throttle position.)
0 – 100%
DLN-24
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: TY21C]
4WD CONTROL UNIT
*: The values are changed by throttle opening and engine speed.
TERMINAL LAYOUT
PHYSICAL VALUES
ETS SOLENOID
Engine running
• At idle speed
2WD mode
Approx. 0.000 A
AUTO mode
Approx. 0.000 A
LOCK mode
Approx. 0.000 A
Engine running
• 3,000 rpm or more constant
2WD mode
Approx. 0.000 A
AUTO mode
Approx. 0.000 – 2.490 A*
LOCK mode
Approx. 2.490 A
FR RH SENSOR
Vehicle stopped
0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.
Nearly matches the speed
meter display (
±
10% or
less)
FR LH SENSOR
Vehicle stopped
0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.
Nearly matches the speed
meter display (
±
10% or
less)
RR RH SENSOR
Vehicle stopped
0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.
Nearly matches the speed
meter display (
±
10% or
less)
RR LH SENSOR
Vehicle stopped
0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.
Nearly matches the speed
meter display (
±
10%)
Monitor item
Condition
Value/Status
JSDIA0057ZZ
Terminal No.
(Wire color)
Description
Condition
Value (Approx.)
+
-
Signal name
Input/
Output
1
(SB)
Ground
4WD solenoid power
supply
Output
Engine speed: At idle
2WD mode
0 V
AUTO mode
0 V
LOCK mode
0 V
Engine speed: 3,000
rpm or more constant
2WD mode
0 V
AUTO mode
2.5 V*
LOCK mode
8 V
2
(Y)
Ground
4WD solenoid ground
Input
Engine speed: At idle
0 V
Engine speed: 3,000 rpm or more constant
0 V
4WD CONTROL UNIT
DLN-25
< ECU DIAGNOSIS INFORMATION >
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*: The values are changed by depressed accelerator pedal opening and engine speed.
CAUTION:
When using circuit tester to measure voltage for inspection, be sure not to extend forcibly any con-
nector terminals.
Fail-Safe
INFOID:0000000010755242
If any malfunction occurs in 4WD electrical system, and control unit detects the malfunction, 4WD warning on
information display (combination meter) is displayed to indicate system malfunction. And then 4WD control
unit controls becomes the fail-safe mode depending on DTC.
5
(V)
Ground
4WD mode switch (AU-
TO)
Input
Ignition switch: ON
4WD mode switch: 2WD
Battery voltage
4WD mode switch: AUTO
0 V
4WD mode switch: LOCK
(State of hold of LOCK position)
0 V
7
(LA/R)
Ground
Ignition switch
Input
Ignition switch: ON
Battery voltage
Ignition switch: OFF
0 V
8
(L)
—
CAN-H
Input/
Output
—
—
9
(LA/G)
Ground
Power supply (4WD so-
lenoid)
Input
Always
Battery voltage
10
(B)
Ground
Ground
—
Always
0 V
11
(B)
Ground
Ground
—
Always
0 V
12
(GR)
Ground
4WD mode switch
(2WD)
Input
Ignition switch: ON
4WD mode switch: 2WD
0 V
4WD mode switch: AUTO
Battery voltage
4WD mode switch: LOCK
(State of hold of LOCK position)
Battery voltage
14
(Y)
Ground
4WD mode switch
(LOCK)
Input
Ignition switch: ON
4WD mode switch: 2WD
Battery voltage
4WD mode switch: AUTO
Battery voltage
4WD mode switch: LOCK
(State of hold of LOCK position)
0 V
15
(LA/L)
Ground
Power supply (4WD
control unit)
Input
Always
Battery voltage
16
(P)
—
CAN-L
Input/
Output
—
—
Terminal No.
(Wire color)
Description
Condition
Value (Approx.)
+
-
Signal name
Input/
Output
DTC
Vehicle condition
•C1201
•C1204
•C1209
•P1804
•P1809
•P1811
•P181F
4WD control changes to front-wheel drive immediately, then 4WD control stops, and the vehicle
becomes front-wheel drive.
DLN-26
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: TY21C]
4WD CONTROL UNIT
Protection Function
INFOID:0000000010755243
4WD system activates its protection function (shuts down 4WD system temporarily) if 4WD system detects
high load continuously or the front wheel tire size differs from the rear tire size. (4WD system is automatically
restored if 4WD system no longer detects any overload or the tire size difference is eliminated.)
NOTE:
• If the 4WD warning displays during driving but remains not displayed after the engine is restarted, the syste-
mis normal. If it again displays after driving for some time, vehicle must be inspected.
• When there is a difference of revolution speed between the front and rear wheel the shift occasionally
changes to direct 4-wheel driving conditions automatically. This is not a malfunction.
DTC Inspection Priority Chart
INFOID:0000000010755244
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC Index
INFOID:0000000010755245
•C1203
•C1210
•P1808
•P181D
•U1000
•U1010
4WD control changes to front-wheel drive gradually (rear-wheels still have some driving torque),
then 4WD control stops, and the vehicle becomes front-wheel drive.
•P181B
No impact to vehicle behavior.
DTC
Vehicle condition
DTC
4WD warning (on infor-
mation display)
Error area and root cause
Contents of protection
function
—
Refer to
Rear final drive assembly in protection mode. It is not malfunction.
(Internal temperature rise of electronic controlled coupling)
Shuts down 4WD sys-
tem temporarily
(Front wheel drive)
—
Malfunction in each tire or different tire diameter
Priority
Detected items (DTC)
1
• C1201 CONTROLLER FAILURE
2
• U1000 CAN COMM CIRCUIT
• U1010 CONTROL UNIT (CAN)
3
• C1203 ABS SYSTEM
• C1210 ENGINE SIGNAL 1
• P1808 VHCL SPEED SEN-ABS
• P181D ENGINE SYSTEM
4
• P1809 CONTROL UNIT
5
• C1204 4WD SOLENOID
• P1811 BATTERY VOLTAGE
6
• C1209 MODE SW
7
• P1804 CONTROL UNIT
8
• P181B INCOMP SELFSHUT
• P181F INCOMP CALIBRATION
DTC
Display Item
Reference
C1201
CONTROLLER FAILURE
C1203
ABS SYSTEM
C1204
4WD SOLENOID
4WD CONTROL UNIT
DLN-27
< ECU DIAGNOSIS INFORMATION >
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NOTE:
If some DTCs are displayed at the same time, refer to
DLN-26, "DTC Inspection Priority Chart"
.
C1209
MODE SW
C1210
ENGINE SIGNAL 1
P1804
CONTROL UNIT
P1808
VHCL SPEED SEN-ABS
P1809
CONTROL UNIT
P1811
BATTERY VOLTAGE
P181B
INCOMP SELF SHUT
P181D
ENGINE SYSTEM
P181F
INCOMP CALIBRATION
U1000
CAN COMM CIRCUIT
U1010
CONTROL UNIT (CAN)
DTC
Display Item
Reference
DLN-28
< WIRING DIAGRAM >
[TRANSFER: TY21C]
4WD SYSTEM
WIRING DIAGRAM
4WD SYSTEM
Wiring Diagram
INFOID:0000000010755246
JRDWC2498GB
4WD SYSTEM
DLN-29
< WIRING DIAGRAM >
[TRANSFER: TY21C]
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DLN
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JRDWC2519GB
DLN-30
< WIRING DIAGRAM >
[TRANSFER: TY21C]
4WD SYSTEM
JRDWC2520GB
4WD SYSTEM
DLN-31
< WIRING DIAGRAM >
[TRANSFER: TY21C]
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JRDWC2521GB
DLN-32
< WIRING DIAGRAM >
[TRANSFER: TY21C]
4WD SYSTEM
JRDWC2522GB
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