DAS-156
< SYSTEM DESCRIPTION >[BSW]
OPERATION
NOTE:
• If vehicle speed exceeds approximately 32 km/h (20 MPH), BSW function operates until the vehicle speed becomes lower than approximately 29 km/h (18 MPH).
• Time shown in the figure is approximate.
• Whenever Blind Spot Warning system is turned off, the warning systems ON indicator remains OFF. ON
Less than ap-
prox.
29km/h
(18MPH) —— OFF OFF
Approx.
32 km/h (20 MPH)
or more —
Ve h i c l e i s
absent OFF OFF
OFF Ve h i c l e i s
detected ON OFF
ON
(vehicle de-
tected direc-
tion) Before turn
signal oper-
ates
Ve h i c l e i s detected Blink Short continuous beep
Ve h i c l e i s
detected af- ter turn sig-
nal operates Blink
OFF
Vehicle condition/ Driver's operation Action
Warning
systems ON indicator Vehicle speed
(Approx.)
[km/h (MPH)] Turn signal
condition Status of ve-
hicle detec-
tion within detection area Indication on the
Blind Spot Warning indicator Buzzer
JSOIA0251GBJSOIA0252GB
JSOIA0251GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS
HANDLING PRECAUTIONDAS-157
< SYSTEM DESCRIPTION > [BSW]
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HANDLING PRECAUTION
Precautions for Blind Spot WarningINFOID:0000000009464811
REAR VIEW CAMERA HANDLING
The rear camera unit “1” for the LDW/BSW sy stems is located above the rear license plate.
To keep the proper operation of the LDW systems and prev ent a system malfunction, be sure to observe the
following:
• Always keep the camera lens clean. Be careful not to damage the nozzle of the automatic washer and
blower.
• Do not attach ”license plate accessories” that reflect light.
• Do not strike or damage the areas around the camera unit.
BLIND SPOT WARNING (BSW)
• BSW system is not a replacement for proper drivi ng procedure and is not designed to prevent contact with
vehicles or objects. When changing lanes, always use the side and rear mirrors and turn and look in the
direction you will move to ensure it is safe to change lanes. Never rely solely on the BSW system.
• The camera unit may not detect properly under the following conditions:
- When towing a trailer.
- When strong light enters the camera unit. (For exampl e, direct sunlight or headlight from the rear.)
- When ambient light changes instantly. (For example, when the vehicle enters or exits a tunnel or passes
under a bridge.)
• Automatic washer and blower may not be able to secu re detection capability when excessive dirt adheres on
the camera lens.
• Excessive noise (e.g. audio system volume, open vehicle window) will interfere with the chime sound, and it
may not be heard.
• The camera unit may not be able to detect when certain objects are present such as:
- Pedestrians, bicycles, animals.
- Several types of vehicles such as motorcycles.
- Oncoming vehicles.
- A vehicle approaching rapidly from behind
- A vehicle which your vehicle overtakes rapidly.
• The camera unit may not be able to detect properly when your vehicle travels beside the middle section of a
vehicle with a long wheelbase (e.g., trailer truck, semi-trailer, tractor).
• The camera unit is designed to ignore most stationary objects, however objects such as guardrails, walls,
foliage and parked vehicles may occasionally be det ected. This is a normal operating condition.
• The camera unit may detect reflection image of vehicles or roadside objects that are not actually in the
detection zone, especially when the road is wet.
ALOIA0181ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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-160
< SYSTEM DESCRIPTION >[BSW]
DIAGNOSIS SYSTEM (ITS CONTROL UNIT)
ECU IDENTIFICATION
ITS control unit part number is displayed.
CONFIGURATION
The specifications of the vehicle can be writ
ten and read in the ITS control unit when replaced.
Te s t i t e mOper-
ation Description
Blind Spot Warning ON indicator lamp
(Yellow)
BSW ON INDICATOR Off
Stops transmitting the Blind Spot Warning ON indicator
signal below to end the test Off
On Transmits the Blind Spot Warning ON indicator signal to
the warning lamp on the door ON
Washer Off
Stops transmitting activate signal to washer below to
end the test Off
On Transmits activate signal to washer ON
Air pump Off
Stops transmitting activate signal to air pump below to
end the test Off
On Transmits activate signal to air pump ON
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS-162
< ECU DIAGNOSIS INFORMATION >[BSW]
ITS CONTROL UNIT
TERMINAL LAYOUT
PHYSICAL VALUES
ALOIA0156ZZ
Te r m i n a l N o . (Wire color) Description
Condition Va l u e
(Approx.)
+ − Signal name Input/
Output
1
(BR) Ground Washer level switch Input Ignition
switch ON When washer fluid is low
(switch closed) 0 V
When washer fluid is not
low (switch open) 12 V
2
(G) Ground Washer signal pump to
camera Input Ignition switch ON 5 V
3
(W) Ground
Washer signal camera
to pump Output Ignition switch ON 5 V
7
(P) Ground CAN -L — — — —
17
(G) Ground SOW LED signal R Output
While
driving LDW/BSW detected 12 V
LDW/BSW is not detected 0 V
20
(G) Ground Battery supply Input — — 12 V
22
(P) Ground Serial ground Output — — 0 V
27
(L) Ground CAN -H — — — —
28
(R) Ground Reverse Input
Ignition
switch ON Shift selector in R (re-
verse) 12 V
Shift selector not in R (re-
verse) 0 V
32
(P) Ground Cancel SW output Input Ignition
switch ON Cancel switch pressed 0 V
Cancel switch not pressed 12 V
33
(BG) Ground LED input Output Ignition
switch ON Warning system is ON 12 V
Warning system is OFF 0 V
37
(W) Ground SOW LED signal L Output While
driving LDW/BSW detected 12 V
LDW/BSW is not detected 0 V
39
(BG) Ground Ignition power supply Input Ignition switch ON Battery Voltage
40
(B) Ground Ground — — — 0 V
50, 53 Ground Shield — — — 0 V
51
(R) Ground RR CAM GND Output
Ignition
switch ON —0 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS
ITS CONTROL UNITDAS-163
< ECU DIAGNOSIS INFORMATION > [BSW]
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Fail-safeINFOID:0000000009951649
If a malfunction occurs in each system, ITS contro l unit cancels each control, sounds a beep, and turns ON
the warning lamp or indicator lamp.
DTC Inspection Priority ChartINFOID:0000000009951650
If multiple DTCs are detected simultaneously, che ck them one by one depending on the following DTC inspec-
tion priority chart.
52
(W) Ground RR CAM ON Output Ignition switch ON 6 V
66
(B) Ground RR CAM COMP + Input Ignition switch ON
68
(G) Ground RR CAM CONT Input Ignition switch ON 5 V
69
(B) Ground RR CAM COMP + Input Ignition switch ON
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
+ − Signal name Input/
Output
ALOIA0179ZZ
ALOIA0179ZZ
System Buzzer Warning Indicator lamp Description
Lane Departure Warning (LDW) Low-pitched
tone Lane Departure Warning lamp Cancel
Blind Spot Warning (BSW) High-pitched
tone Blind Spot Warning lamp Cancel
Moving Object Detection (MOD) Low-pitched
tone Warning lamp MOD icon
(on camera screen) Cancel
Priority Detected items (DTC)
1 • U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
2 • U1305: CAMERA IMAGE CALIB
• U1308: CAMERA CONFIG
3 • C1A39: STRG SEN CIR
• U0428: STRG SEN CAN CIR 2
• U111A: REAR CAMERA IMAGE SIGNAL
• U1232: ST ANGLE SEN CALIB
• U1309: PUMP UNIT CURRENT
• U130B: REAR CAMERA COMM ERROR
• U1310: PUMP UNIT CIRCUIT
4 • C1A03: VHCL SPEED SE CIRC
• C1A04: VDC FAIL
• U0122: VDC P-RUN DIAG
• U0416: VDC CHECKSUM DIAG
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS-164
< ECU DIAGNOSIS INFORMATION >[BSW]
ITS CONTROL UNIT
DTC Index
INFOID:0000000009951651
NOTE:
• The details of time display are as follows:
- CRNT: A malfunction is detected now
- PAST: A malfunction was detected in the past
• IGN counter is displayed on FFD (Freeze Frame Data).
- 0: The malfunctions that are detected now
CAN communication system (U1000, U1010)
- 1 - 39: It increases like 0 → 1 → 2 ··· 38 → 39 after returning to the normal condition whenever the ignition
switch OFF → ON. It returns to 0 when a malfunction is detected again in the process.
- If it is over 39, it is fixed to 39 until the self-diagnosis results are erased. Other than CAN communication sy stem (Other than U1000, U1010)
- 1 - 49: It increases like 0 → 1 → 2 ··· 38 → 49 after returning to the normal condition whenever the ignition
switch OFF → ON. It returns to 0 when a malfunction is detected again in the process.
- If it is over 49, it is fixed to 49 until the self-diagnosis results are erased.
NOTE:
With the detection of “U1000” some systems do not perform the fail-safe operation.
Systems for fail-safe
• A: Lane Departure Warning (LDW)
• B: Blind Spot Warning (BSW)
• C: Moving Object Detection (MOD)
DTC
CONSULT display Warning lamp Fail-safe
Reference
CONSULT
Lane Departure Warning
Blind Spot Warning
Moving Object Detection
System
C1A03 VHCL SPEED SE CIRC ON ON ON A, B, C DAS-186
C1A04 VDC FAIL ON ON ON A, B, CDAS-187
C1A39 STRG SEN CIR ON ON ON A, B, CDAS-188
NO DTC IS
DETECTED. FURTHER
TESTING
MAY BE RE- QUIRED NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED ——— — —
U0122 VDC P-RUN DIAG ON ON ON A, B, C DAS-189
U0416 VDC CHECKSUM DIAG ON ON ON A, B, CDAS-190
U0428 STRG SEN CAN CIR 2 ON ON ON A, B, CDAS-191
U1000NOTECAN COMM CIRCUIT ON ON ON A, B, CDAS-192
U1010 CONTROL UNIT (CAN) ON ON ON A, B, C DAS-193
U 111 AREAR CAMERA IMAGE
SIGNAL ON ON ON A, B, C
DAS-194
U1232 ST ANGLE SEN CALIB ON ON ON A, B, C DAS-196
U1305 CAMERA IMAGE CALIB ON ON ON A, B, CDAS-197
U1308 CAMERA CONFIG ON ON ON A, B, CDAS-198
U1309 PUMP UNIT CURRENT ON ON ON A, B, CDAS-199
U130BREAR CAMERA COMM
ERROR ON ON ON A, B, C
DAS-202
U1310 PUMP UNIT CIRCUIT ON ON ON A, B, C DAS-203
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS-176
< BASIC INSPECTION >[BSW]
DIAGNOSIS AND REPAIR WORK FLOW
>> GO TO 2.
2.SELF-DIAGNOSIS WITH CONSULT
1. Perform “All DTC Reading” with CONSULT.
2. Check if the DTC is detected on the self-diagnosis results of “AVM”.
Is any DTC detected?
YES >> GO TO 5.
NO >> GO TO 3.
3.PRE-INSPECTION FOR DIAGNOSIS
Perform pre-inspection for diagnosis. Refer to DAS-178, "Inspection Procedure"
.
>> GO TO 4.
4.ACTION TEST
Perform BSW system action test to check the operation status. Refer to DAS-179, "Description"
.
>> GO TO 6.
5.TROUBLE DIAGNOSIS BY DTC
Perform trouble diagnosis for the detected DTC. Specify a malfunctioning part. Refer to DAS-164, "DTC Index"
(ITS CONTROL UNIT).
>> GO TO 7.
6.SYMPTOM DIAGNOSIS
Perform symptom diagnosis. Specify malfunctioning part. Refer to DAS-212, "Symptom Table"
.
>> GO TO 7.
7.MALFUNCTION PART REPAIR
Repair or replace the identified malfunctioning parts.
>> GO TO 8.
8.REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT)
Perform self-diagnosis with CONSULT. Check that any DTC is not detected. Erase DTC if DTC is detected
before the repair. Check that DTC is not detected again.
Is any DTC detected?
YES >> GO TO 5.
NO >> GO TO 9.
9.REPAIR CHECK (ACTION TEST)
Perform BSW system action test. Al so check the system operation.
Does it operate normally?
YES >> Inspection End.
NO >> GO TO 4.
Diagnostic Work SheetINFOID:0000000009464819
DESCRIPTION
In general, each customer feels differently about an inci dent. It is important to fully understand the symptoms
or conditions for a customer complaint.
There are many operating conditions that lead to the malfunction. A good grasp of such conditions can make
troubleshooting faster and more accurate.
Some conditions may cause the lane departure warning lamp to stay ON.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM