steering NISSAN TEANA 2014 Workshop Manual

DAS
ITS CONTROL UNITDAS-17
< ECU DIAGNOSIS INFORMATION > [ITS CONTROL UNIT]
C
D E
F
G H
I
J
K L
M B
N P
A
ECU DIAGNOSIS INFORMATION
ITS CONTROL UNIT
Reference ValueINFOID:0000000009464653
VALUES ON THE DIAGNOSIS TOOL
Monitor item Condition Value/Status
ST ANGLE SENSOR
SIGNAL Ignition switch ON Steering angle signal is received On
Steering angle signal is not received Off
REVERSE SIGNAL Ignition switch ON Shift selector in R (reverse) On
Shift selector is not in R (reverse) Off
VEHICLE SPEED
SIGNAL While driving Vehicle speed signal is received On
Vehicle speed signal is not received Off
CAMERA SWITCH
SIGNAL Ignition switch ON Camera switch is pressed On
Camera switch is not pressed Off
CAMERA OFF SIG-
NAL Ignition switch ON Purpose switch is pressed On
Purpose switch is not pressed Off
ST ANGLE SENSOR
TYPE Ignition switch ON Steering angle sensor type is displayed Absolute
Steering angle sensor type is not received Not
STEERING GEAR
RATIO TYPE Ignition switch ON Pattern 1 type of steering gear ratio displayed Pattern 1
Pattern 2 type of steering gear ratio displayed Pattern 2
STEERING POSI-
TION Ignition switch ON It recognizes steering position is left LHD
It recognizes steering position is right RHD
R-CAMERA COMM
STATUS Ignition switch ON Rear camera serial status is OK OK
Rear camera serial status is not OK NG
R-CAMERA COMM
LINE Ignition switch ON Rear camera serial communication signal is received OK
Rear camera serial communication signal is not received NG
ILL Ignition switch ON Illumination is ON On
Illumination is OFF Off
ITS SW 1 Ignition switch ON ITS switch is pressed On
ITS switch is not pressed Off
ITS SW 1 IND Ignition switch ON Indicator of ITS switch 1 is lighting On
Indicator of ITS switch 1 is not lighting Off
TURN SIGNAL Ignition switch ON Turn signal left is received Left
Turn signal neutral is received N
Turn signal right is received Right
REAR CAMERA IM-
AGE SIGNAL Ignition switch ON Camera image signal is received On
Camera image signal is not received Off
ITS SW 2 Ignition switch ON For this vehicle, the displaying is fixed No setting
ITS SW 2 IND Ignition switch ON For this vehicle, the displaying is fixed No setting
WASH SW Ignition switch ON Wash switch signal is pressed On
Wash switch signal is not pressed Off
PUMP COMM STA-
TUS Ignition switch ON Pump communication signal is received On
Pump communication signal is not received Off
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-44
< DTC/CIRCUIT DIAGNOSIS >[ITS CONTROL UNIT]
C1A39 STEERING ANGLE SENSOR
C1A39 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000009464673
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition ON.
2. Perform “All DTC Reading” with CONSULT.
3. Check if the "C1A39" is detected as the current malfunction in "Self Diagnostic Result" of "AVM".
Is
“C1A39” detected as the current malfunction?
YES >> Refer to DAS-44, "Diagnosis Procedure".
NO >> Refer to GI-43, "Intermittent Incident"
.
Diagnosis ProcedureINFOID:0000000009464674
1.CHECK STRG SENSOR SEL F-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-45, "DTC Index"
.
NO >> GO TO 2.
2.CHECK ALL UNIT SELF-DIANOSIS RESULTS
Check if any DTC is detected exc ept for ITS control unit about ABS in "ALL DTC READING" with CONSULT.
Is any DTC detected except for ITS?
YES >> Replace steering angle sensor. Refer to BRC-132, "Removal and Installation".
NO >> Replace ITS control unit. Refer to DAS-68, "Removal and Installation"
.
DTC Trouble diagnosis name DTC detecting condition Possible causes
C1A39 STRG SEN CIR ITS control unit receives the message that
means "Steering angle sensor is failed" from
steering angle sensor. • Steering angle sensor
• ITS control unit
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS
U0428 STEERING ANGLE SENSORDAS-47
< DTC/CIRCUIT DIAGNOSIS > [ITS CONTROL UNIT]
C
D E
F
G H
I
J
K L
M B
N P
A
U0428 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000009464679
Diagnosis ProcedureINFOID:0000000009464680
1.ADJUST THE NEUTRAL POSITION OF THE STEERING ANGLE SENSOR
When U1232 is detected, adjust the neutral position of the steering angle sensor.
>> Perform adjustment of the neutral position of the steering angle sensor. Refer to BRC-33, "CON-
SULT Function (ABS)".
DTCDisplay contents of
CONSULT DTC detection condition Possible malfunction factor
U0428 ST ANGLE SENSOR
CALIBRATION [U0428] The neutral position adjustment of the steering angle sen-
sor is incomplete. Adjust neutral position of the steering
angle sensor.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-52
< DTC/CIRCUIT DIAGNOSIS >[ITS CONTROL UNIT]
U1232 STEERING ANGLE SENSOR
U1232 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000009464689
Diagnosis ProcedureINFOID:0000000009464690
1.REGISTER THE NEUTRAL POSITION
OF THE STEERING ANGLE SENSOR
1. Turn the ignition switch ON.
2. Perform registration of the neutral position of the steering angle sensor. Refer to DAS-14, "CONSULT
Function (AVM)".
3. Check “Self Diagnostic Result” of “AVM” with CONSULT. Refer to DAS-14, "CONSULT Function (AVM)"
.
Is
“ST ANGLE SEN CALIB” detected?
YES >> GO TO 2.
NO >> Inspection End.
2.CHECK STEERING ANGLE SENSOR
Check steering angle sensor.
Is the inspection result normal?
YES >> Replace ITS control unit. Refer to DAS-68, "Removal and Installation".
NO >> Repair or replace malfunctioning parts.
DTC Display contents of
CONSULT DTC detection condition Possible malfunction factor
U1232 ST ANGLE SEN CALIB The neutral position registration of the steering angle sen-
sor cannot finish. • Steering angle sensor
•ITS control unit
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-76
< SYSTEM DESCRIPTION >[LDW]
COMPONENT PARTS
Component Description
INFOID:0000000009464721
1. Combination meter 2. Vehicle information display 3. BCM (view with combination meter re- moved)
4. Blind spot warning indicator RH 5. Blind spot warning indicator LH 6. TCM
7. ECM 8. Warning systems switch 9. Warning systems ON indicator
10. Rear view camera washer control unit 11. Rear view camera air pump motor 12. Rear view camera
13. AV control unit (center display) (with navi- gation system and bose audio system)
Audio unit (center display) (with display
audio system and bose audio system) 14. ITS control unit
(view with center console removed) 15. Steering angle sensor
(view with steeri ng wheel removed)
16. Washer fluid level switch (view with front fascia removed)
Component Description
ITS control unit • Judges the lane departure depending on the lane detection result and each signal
• Controls the warning buzzer and the warning systems ON indicator
• Transmits lane departure warning lamp signal to combination meter via CAN communica- tion
Warning systems switch Inputs the warning systems switch signal to ITS control unit
Warning systems ON indicator
(On the warning systems switch) Turns on the warning systems ON indicator, according to a warning systems ON indicator sig-
nal received from the ITS control unit
Rear view camera • Detects the lane marker in travel lane
• Transmits the detected lane condition signal to ITS control unit via ITS communication
ABS actuator and electr ic unit (control
unit) • Transmits vehicle speed signal to ITS control unit via CAN communication
• Transmits yaw rate signal/side G sensor signal to ITS control unit via CAN communication
Buzzer (combination meter) Activates the warning buzzer, according to a warning buzzer signal received from the ITS
control unit
Combination meter • Turns the Lane Departure Warning lamp ON/OFF according to the signals from ITS control
unit via CAN communication
• Receives Lane Departure Warning ON indicator signal via CAN communication.
Steering angle sensor Transmits steering angle sensor signal to ITS control unit via CAN communication
BCM • Transmits turn signal indicator to ITS control unit via CAN communication
• Transmits dimmer signal to ITS control unit via CAN communication
ECM Transmits engine speed signal to ITS control unit via CAN communication
TCM Transmits the output shaft speed signal, input speed signal, current gear position signal and
shift position signal to ITS control unit via CAN communication
AV c o n t r o l u n i t
(with navigation system and bose au-
dio system) Receives the various systems and camera signals via CAN communication and routes them
to the center display
Audio unit
(with display audio system and bose
audio system) Receives the various systems and camera signals and routes them to the center display
Center display Displays the various system screen signals according to the priority level received via CAN
communication
Rear view camera washer control unit Controls the air pump to drive air to the rear camera lens according to the signals received
from the ITS control unit
Rear view camera air pump motor Drives air to the rear camera lens according to the signals received from the pump control unit
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS
DIAGNOSIS SYSTEM (ITS CONTROL UNIT)DAS-83
< SYSTEM DESCRIPTION > [LDW]
C
D E
F
G H
I
J
K L
M B
N P
A
DIAGNOSIS SYSTEM (ITS CONTROL UNIT)
CONSULT Function (AVM)INFOID:0000000009951637
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and no-start condition.
APPLICATION ITEMS
CONSULT performs the following functions via CAN communication using ITS control unit.
SELF DIAGNOSTIC RESULT
Refer to DAS-89, "DTC Index".
DATA MONITOR
Diagnosis mode Description
Self Diagnostic Result Displays the name of a malfunctioning system stored in the ITS control unit
Data Monitor Displays ITS control unit input/output data in real time
Work support Displays causes of automatic system cancellation occurred during system control
Active Test Enables an operational check of a load by transmitting a driving signal from the ITS control unit to
the load
ECU identification Displays ITS control unit part number
Configuration The vehicle specification can be written when replacing the ITS control unit
Monitored item [Unit] Description
ST ANGLE SENSOR SIGNAL
[On/Off] Indicates [On/Off] status as judged from ITS control unit (Angle sensor transmits angle signal
through CAN communication)
REVERSE SIGNAL
[On/Off] Indicates [On/Off] status as judged from ITS control unit (TCM transmits reverse signal
through CAN communication)
VEHICLE SPEED SIGNAL
[On/Off] Indicates vehicle speed calculated from ITS control unit through CAN communication [ABS ac-
tuator and electric unit (control unit) transmits vehicle speed signal (wheel speed) through
CAN communication]
CAMERA SWITCH SIGNAL
[On/Off] Indicates [On/Off] status of camera switch signal as judged from ITS control unit
CAMERA OFF SIGNAL
[On/Off] Indicates [On/Off] status of camera OFF signal as judged from ITS control unit
ST ANGLE SENSOR TYPE
[Absolute/Not] Indicates whether steering angle sensor type is absolute or not (ON means “controlling”)
STEERING GEAR RATIO TYPE
[Type 0/1] Indicates the type of the steering gear ratio (type 1 or 2)
STEERING POSITION
[LHD/RHD] Indicates the steering
position (LHD or RHD)
REAR CAMERA IMAGE SIGNAL
[OK/Not] Indicates the status of the rear camera image as read from ITS control unit through dedicated
ITS communication lines
WASH SW
[ON/OFF] Indicates the state of the wash switch indicator output
R-CAMERA COMM STATUS
[OK/Not] Indicates the status of the rear camera communication status as read from ITS control unit
through dedicated ITS communication lines
R-CAMERA COMM LINE
[OK/Not] Indicates the condition of the rear camera communication line whether transmitting properly
through dedicated ITS communication lines
PUMP COMM STATUS
[OK/NG] Indicates the state of the communication signal from pump control unit
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-84
< SYSTEM DESCRIPTION >[LDW]
DIAGNOSIS SYSTEM (ITS CONTROL UNIT)
WORK SUPPORT
ACTIVE TEST
CAUTION:
• Never perform “Active Test” while driving the vehicle.
• The “Active Test” cannot be performed when th e following systems warning indicators are illumi-
nated:
- Lane Departure Warning indicator
- Blind Spot Warning indicator
• Place the shift selector to P (park) position, and then perform the test.
BSW ON INDICATOR
ILL
[On/Off] Indicates [On/Off] status of the illumination signal
ITS SW 1
[On/Off] Indicates the state of the warning system switch as seen by the ITS control unit
ITS SW 1 IND
[On/Off] Indicates the state of the warning system switch indicator output
TURN SIGNAL
[Left/N/Right] Indicates [Left/N/Right] status of the turn signal output
ITS SW 2
[ON/OFF/No setting] Indicates the state of the warning system secondary switch as seen by the ITS control unit
ITS SW 2 IND
[ON/OFF/No setting] Indicates the state of the warning system secondary switch indicator output
Monitored item
[Unit] Description
Work support items Description
PREDICTIVE COURSE LINE
DISPLAY Setting whether predictive guide line displays or not
INITIALIZE CAMERA IMAGE
CALIBRATION Start the initialization process of the rear camera
STEERING ANGLE SENSOR
ADJUSTMENT Execute register neutral point of steering angle sensor
CALIBRATING CAMERA IM-
AGE (REAR CAMERA) Displays the various values of the rear camera during the calibration process
REAR WIDE-VIEW FIXED
GUIDE LINE CORRECTION Adjustment the position of fixed guide line on rear wide view
REAR CAMERA ITS Displays and sets camera image calibration values
CAUSE OF LDW CANCEL Displays the information about reason of LDW cancellation
CAUSE OF BSW CANCEL Displays the information about reason of BSW cancellation
Te s t i t e m D e s c r i p t i o n
WASH ACTIVE ON
Activates the washer to clean the lens of rear camera
OFF
LED LH INDICATOR ON
Flashes the left side LED light for ITS system
OFF
LED RH INDICATOR ON
Flashes the right side LED light for ITS system
OFF
AIR ACTIVE ON
Activates the air pump to clean the lens of rear camera
OFF
AIR & WASH ACTIVE ON
Activates the air pump and washer to clean the lens of rear camera
OFF
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-86
< ECU DIAGNOSIS INFORMATION >[LDW]
ITS CONTROL UNIT
ECU DIAGNOSIS INFORMATION
ITS CONTROL UNIT
Reference ValueINFOID:0000000009951641
VALUES ON THE DIAGNOSIS TOOL
Monitor item Condition Value/Status
ST ANGLE SENSOR
SIGNAL Ignition switch ON Steering angle signal is received On
Steering angle signal is not received Off
REVERSE SIGNAL Ignition switch ON Shift selector in R (reverse) On
Shift selector is not in R (reverse) Off
VEHICLE SPEED
SIGNAL While driving Vehicle speed signal is received On
Vehicle speed signal is not received Off
CAMERA SWITCH
SIGNAL Ignition switch ON Camera switch is pressed On
Camera switch is not pressed Off
CAMERA OFF SIG-
NAL Ignition switch ON Purpose switch is pressed On
Purpose switch is not pressed Off
ST ANGLE SENSOR
TYPE Ignition switch ON Steering angle sensor type is displayed Absolute
Steering angle sensor type is not received Not
STEERING GEAR
RATIO TYPE Ignition switch ON Pattern 1 type of steering gear ratio displayed Pattern 1
Pattern 2 type of steering gear ratio displayed Pattern 2
STEERING POSI-
TION Ignition switch ON It recognizes steering position is left LHD
It recognizes steering position is right RHD
R-CAMERA COMM
STATUS Ignition switch ON Rear camera serial status is OK OK
Rear camera serial status is not OK NG
R-CAMERA COMM
LINE Ignition switch ON Rear camera serial communication signal is received OK
Rear camera serial communication signal is not received NG
ILL Ignition switch ON Illumination is ON On
Illumination is OFF Off
ITS SW 1 Ignition switch ON ITS switch is pressed On
ITS switch is not pressed Off
ITS SW 1 IND Ignition switch ON Indicator of ITS switch 1 is lighting On
Indicator of ITS switch 1 is not lighting Off
TURN SIGNAL Ignition switch ON Turn signal left is received Left
Turn signal neutral is received N
Turn signal right is received Right
REAR CAMERA IM-
AGE SIGNAL Ignition switch ON Camera image signal is received On
Camera image signal is not received Off
ITS SW 2 Ignition switch ON For this vehicle, the displaying is fixed No setting
ITS SW 2 IND Ignition switch ON For this vehicle, the displaying is fixed No setting
WASH SW Ignition switch ON Wash switch signal is pressed On
Wash switch signal is not pressed Off
PUMP COMM STA-
TUS Ignition switch ON Pump communication signal is received On
Pump communication signal is not received Off
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS
C1A39 STEERING ANGLE SENSORDAS-113
< DTC/CIRCUIT DIAGNOSIS > [LDW]
C
D E
F
G H
I
J
K L
M B
N P
A
C1A39 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000009464749
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition ON.
2. Perform “All DTC Reading” with CONSULT.
3. Check if the "C1A39" is detected as the current malfunction in "Self Diagnostic Result" of "AVM".
Is
“C1A39” detected as the current malfunction?
YES >> Refer to DAS-113, "Diagnosis Procedure".
NO >> Refer to GI-43, "Intermittent Incident"
.
Diagnosis ProcedureINFOID:0000000009464750
1.CHECK STRG SENSOR SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-45, "DTC Index"
.
NO >> GO TO 2.
2.CHECK ALL UNIT SELF -DIANOSIS RESULTS
Check if any DTC is detected except for ITS contro l unit about ABS in "ALL DTC READING" with CONSULT.
Is any DTC detected except for ITS?
YES >> Replace steering angle sensor. Refer to BRC-132, "Removal and Installation".
NO >> Replace ITS control unit. Refer to DAS-68, "Removal and Installation"
.
DTC Trouble diagnosis name DTC detecting condition Possible causes
C1A39 STRG SEN CIR ITS control unit receives the message that
means "Steering angle sensor is failed" from
steering angle sensor. • Steering angle sensor
• ITS control unit
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-116
< DTC/CIRCUIT DIAGNOSIS >[LDW]
U0428 STEERING ANGLE SENSOR
U0428 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000009464755
Diagnosis ProcedureINFOID:0000000009464756
1.ADJUST THE NEUTRAL POSITION OF THE STEERING ANGLE SENSOR
When U1232 is detected, adjust the neutral position of the steering angle sensor.
>> Perform adjustment of the neutral positi on of the steering angle sensor. Refer to BRC-33, "CON-
SULT Function (ABS)".
DTCDisplay contents of
CONSULT DTC detection condition Possible malfunction factor
U0428 ST ANGLE SENSOR
CALIBRATION [U0428] The neutral position adjustment of the steering angle sen-
sor is incomplete. Adjust neutral position of the steering
angle sensor.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM