Nissan Juke (2016 year). Service Repair Manual — part 594
STC-10
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (EPS CONTROL UNIT)
*1: Almost in accordance with the value of “MOTOR SIG”. It is not a malfunction though these values are not
accorded when steering quickly.
*2: Normally displays 100%. In case of an excessive stationary steering, the assist curvature gradually falls.
However, it returns to 100% when left standing.
*3: It is not a malfunction, though it might not be corresponding just after ignition switch in turned ON.
*4: Displays NORMAL in models without Integrated Control System.
ENGINE STATUS (Stop/Run)
Engine speed is displayed from engine status signal via CAN communication.
STEERING MODE (NORMAL/SPORT)
*4
Display the driving mode of Integrated Control System received through CAN
communication.
Monitor item (Unit)
Remarks
Revision: November 2015
2016 JUKE
EPS CONTROL UNIT
STC-11
< ECU DIAGNOSIS INFORMATION >
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ECU DIAGNOSIS INFORMATION
EPS CONTROL UNIT
Reference Value
INFOID:0000000012199921
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The output signal indicates the EPS control unit calculation data. The normal values will be displayed
even in the event that the output circuit (harness) is open.
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
*1: Almost in accordance with the value of “MOTOR SIG”. It is not a malfunction though these values are not
accorded when steering quickly.
*2: Normally displays 100%. In case of an excessive stationary steering, the assist curvature gradually falls.
However, it returns to 100% when left standing.
*3: It is not a malfunction, though it might not be corresponding just after ignition switch in turned ON.
Monitor item
Data monitor
Condition
Display value
BATTERY VOLT
Ignition switch: ON
Battery voltage
TORQUE SENSOR
Engine running
Steering wheel: Not steering (There is
no steering force)
Approx. 0 Nm
Steering wheel: Right turn
Positive value (Nm)
Steering wheel: Left turn
Negative value (Nm)
MOTOR CURRENT
Engine running
Steering wheel: Not steering (There is
no steering force)
Approx. 0 A
Steering wheel: Right or left turn
Displays consumption current of
EPS motor (A)
*1
MOTOR SIG
Engine running
Steering wheel: Not steering (There is
no steering force)
Approx. 0 A
Steering wheel: Right turn
Positive value (A)
Steering wheel: Left turn
Negative value (A)
ASSIST TORQUE
Engine running
Steering wheel: Not steering (There is
no steering force)
Approx. 0 Nm
Steering wheel: Right or left turn
Displays assist torque of EPS motor
(Nm)
C/U TEMP
Ignition switch ON or engine running
Displays temperature of inside of
EPS control unit [
°
C (
°
F)]
ASSIST LEVEL
Engine running
100 %
*2
VEHICLE SPEED
Vehicle stopped
0 km/h (0 mph)
While driving
Approximately equal to the indication
on speedometer
*3
(inside of
±
10%)
WARNING LAMP
EPS warning lamp: ON
On
EPS warning lamp: OFF
Off
ENGINE STATUS
Engine not running
Stop
Engine running
Run
STEERING MODE
*4
Engine running
Driving mode of Integrated Control
System: Except SPORT
NORMAL
Driving mode of Integrated Control
System: SPORT
SPORT
Revision: November 2015
2016 JUKE
STC-12
< ECU DIAGNOSIS INFORMATION >
EPS CONTROL UNIT
*4: Displays NORMAL in models without Integrated Control System.
TERMINAL LAYOUT
PHYSICAL VALUES
Fail-Safe
INFOID:0000000012199922
• If any malfunction occurs in the system, and control unit detects the malfunction, EPS warning lamp on com-
bination meter turns ON to indicate system malfunction.
• When EPS warning lamp is ON, enters into a manual steering state. (Control turning force steering wheel
becomes heavy.)
Protection Function
INFOID:0000000012199923
EPS control unit decreases the output signal to EPS motor while extremely using the power steering function
(e.g., full steering) consecutively for protecting EPS motor and EPS control unit (Overload protection control).
While activating overload protection control, the assist torque gradually decreases, and the steering wheel
turning force becomes heavy. The normal assist torque is recovered if the steering wheel is not turned for a
while.
DTC Inspection Priority Chart
INFOID:0000000012199924
When multiple DTCs are detected simultaneously, check one by one depending on the following priority list.
JSGIA0834ZZ
Terminal No.
(Wire Color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/Output
1
(P)
—
CAN-L
Input/Output
—
—
2
(L)
—
CAN-H
Input/Output
—
—
4
(LG)
Ground
Ignition power supply
Input
Ignition switch: ON
9 – 18.2 V
Ignition switch: OFF
0 V
9
(R)
Ground
Battery power supply
Input
Always
9 – 18.2 V
10
(B)
Ground
Ground
—
Always
0 V
Priority
Priority order item (DTC)
1
U1000 CAN COMM CIRCUIT
2
C1609 VEHICLE SPEED SIGNAL
3
C1601 BATTERY POWER SUPPLY
4
Other than the above
Revision: November 2015
2016 JUKE
EPS CONTROL UNIT
STC-13
< ECU DIAGNOSIS INFORMATION >
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DTC Index
INFOID:0000000012199925
DTC
Items (CONSULT screen terms)
Reference
C1601
BATTERY VOLT
C1604
TORQUE SENSOR
C1606
EPS MOTOR
C1607
EEPROM
C1608
CONTROL UNIT
C1609
CAN VHCL SPEED
U1000
CAN COMM CIRCUIT
Revision: November 2015
2016 JUKE
STC-14
< WIRING DIAGRAM >
ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM
WIRING DIAGRAM
ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM
Wiring Diagram
INFOID:0000000012199926
JRGWC2687GB
Revision: November 2015
2016 JUKE
ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM
STC-15
< WIRING DIAGRAM >
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JRGWC2688GB
Revision: November 2015
2016 JUKE
STC-16
< WIRING DIAGRAM >
ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM
JRGWC2689GB
Revision: November 2015
2016 JUKE
ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM
STC-17
< WIRING DIAGRAM >
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JRGWC2690GB
Revision: November 2015
2016 JUKE
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