2014 NISSAN TEANA steering

DAS
DIAGNOSIS SYSTEM (ITS CONTROL UNIT)DAS-159
< SYSTEM DESCRIPTION > [BSW]
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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
ITS CONTROL UNITDAS-161
< ECU DIAGNOSIS INFORMATION > [BSW]
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ECU DIAGNOSIS INFORMATION
ITS CONTROL UNIT
Reference ValueINFOID:0000000009951648
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-188
< DTC/CIRCUIT DIAGNOSIS >[BSW]
C1A39 STEERING ANGLE SENSOR
C1A39 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000009464833
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-188, "Diagnosis Procedure".
NO >> Refer to GI-43, "Intermittent Incident"
.
Diagnosis ProcedureINFOID:0000000009464834
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-191
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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U0428 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000009464839
Diagnosis ProcedureINFOID:0000000009464840
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-196
< DTC/CIRCUIT DIAGNOSIS >[BSW]
U1232 STEERING ANGLE SENSOR
U1232 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000009464849
Diagnosis ProcedureINFOID:0000000009464850
1.REGISTER THE NEUTRAL POSITION
OF THE STEERING ANGLE SENSOR
1. Turn the ignition switch ON.
2. Perform registration of the neutral positi on of the steering angle sensor. Refer to DAS-158, "CONSULT
Function (AVM)".
3. Check “Self Diagnostic Result” of “AVM” with CONSULT. Refer to DAS-158, "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-216
< SYMPTOM DIAGNOSIS >[BSW]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000009464875
PRECAUTIONS FOR BLIND SPOT WARNING (BSW)
• The Blind Spot Warning system is not a replacem
ent for proper driving procedure and are not designed to
prevent contact with vehicles or objects. When c hanging lanes, always use the side and rear mirrors and
turn and look in the direction driver will move to ensure it is safe to change lanes. Never rely solely on the
Blind Spot Warning system.
• The Blind Spot Warning system may not provide a warn ing for vehicles that pass through the detection zone
quickly.
• Do not use the Blind Spot Warning system when towing a trailer.
• Excessive noise (e.g., audio system volume, open v ehicle window) will interfere with the chime sound, and it
may not be heard.
• The rear view camera may not be able to detect and activate Blind Spot Warning when certain objects are present such as:
- Pedestrians, bicycles, animals.
- Several types of vehicles such as motorcycles.
- Oncoming vehicles.
- Vehicles remaining in the detection zone when driver accelerates from a stop.
- A vehicle merging into an adjacent lane at a speed approximately the same as vehicle.
- A vehicle approaching rapidly from behind.
- Another vehicle which overtakes this vehicle rapidly.
• Severe weather or road spray conditions may reduce the abi lity of the rear view camera to detect other vehi-
cles.
• The rear view camera detection zone is designed based on a standard lane width. When driving in a wider
lane, the rear view camera may not detect vehicles in an adjacent lane. When driving in a narrow lane, the
rear view camera may detect vehicles driving two lanes away.
• The rear view camera is designed to ignore most stationary objects, however objects such as guardrails,
walls, foliage and parked vehicles may occasionally be detected. This is a normal operating condition.
PRECAUTIONS FOR BLIND SPOT WARNING
• Do not use the Blind Spot Warning system under the following conditions because the system may not func-
tion properly:
- During bad weather (e.g., rain, fog, snow, wind, etc.)
- When driving on slippery roads, such as on ice or snow, etc.
- When driving on winding or uneven roads.
- When there is a lane closure due to road repairs.
- When driving in a makeshift lane.
- When driving on roads where the lane width is too narrow.
- When driving with a tire that is not within normal tire c onditions (e.g., tire wear, low tire pressure, installation
of spare tire, tire chains, non-standard wheels).
- When the vehicle is equipped with non-original brake parts or suspension parts.
• The rear view camera may not detect lane markers in the following situations and the Blind Spot Warning
system may not operate properly:
- On roads where there are multiple parallel lane marker s; lane markers that are faded or not painted clearly;
yellow painted lane markers; nonstandard lane markers; lane markers covered with water, dirt, snow, etc.
- On roads where discontinued lane markers are still detectable.
- On roads where there are sharp curves.
- On roads where there are sharply c ontrasting objects, such as shadows, snow, water, wheel ruts, seams or
lines remaining after road repairs.
- On roads where the traveling lane merges or separates.
- When the vehicle traveling direction does not align with the lane markers.
- When rain, snow or dirt adheres to the lens of a the rear view camera unit.
- When a sudden change in brightness occurs. (e.g., when the vehicle enters or exits a tunnel or under a
bridge.)
- When steering quickly.
- When the hazard warning flashers are operated.
- When driving on a curve at a high speed.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS
WARNING SYSTEMS SWITCHDAS-217
< REMOVAL AND INSTALLATION > [BSW]
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REMOVAL AND INSTALLATION
WARNING SYSTEMS SWITCH
Removal and InstallationINFOID:0000000009464878
REMOVAL
1. Remove the instrument lower panel LH. Refer to IP-21, "Removal and Installation".
2. Remove screws ( ) that retain the upper switch carrier (1) to the instrument lower panel LH (2).
3. Release upper tab (B) and lower tab (C) using a suitable tool (A), then remove the warning system switch (4) from the upper
switch carrier.
(1) Trunk opener switch
(2) VDC switch
(3) Heated steering wheel switch
INSTALLATION
Installation is in the reverse order of removal.
ALOIA0143ZZ
ALOIA0144ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-226
< SYSTEM DESCRIPTION >[MOD]
COMPONENT PARTS
Component Description
INFOID:0000000009464889
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 • Being connected with rear view camera via ITS communication, receives vehicle detection signal
and transmits Moving Object Detection indicator signal and Moving Object Detection indicator
dimmer signal to rear view camera
• Being connected with rear view camera unit via ITS communication, receives detected rear con-
dition signal
• Receives steering angle sensor signal from steering angle sensor via CAN communication
• Judges a Moving Object Detection indicator ON/OFF state and an approach state to the rear
proximity of the vehicle.
• Activates the warning buzzer and warning systems ON indicator
• Transmits Moving Object Detection lamp signal to combination meter via CAN communication
Blind Spot Warning indicator LH/
RH Receives Moving Object Detection indicator operation signal from rear view camera and turns OFF,
turns ON or blinks
Warning system switch Inputs the switch signal to ITS control unit
Warning system switch indicator
(on the warning systems switch) Indicates Moving Object Detection system status
Rear view camera • Detects the lane marker by the built-in camera
• Transmits detected lane condition signal to ITS control unit
ABS actuator and electric 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) Receives buzzer signal from ITS control unit via CAN and sounds buzzer.
Combination meter
(vehicle information display) • Turns the Moving Object Detection (MOD) warning indicator ON/OFF according to the signals
from the ITS control unit via CAN communication
• Receives MOD 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
Center display Displays the various system screen signals according to the priority level received via CAN com-
munication
AV c o n t r o l u n i t
(with navigation system and bose
audio 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
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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM