DAS
ITS CONTROL UNITDAS-237
< ECU DIAGNOSIS INFORMATION > [MOD]
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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-238
< ECU DIAGNOSIS INFORMATION >[MOD]
ITS CONTROL UNIT
Fail-safe
INFOID:0000000009951660
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:0000000009951661
If multiple DTCs are detected simultaneously, chec k 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
ITS CONTROL UNITDAS-239
< ECU DIAGNOSIS INFORMATION > [MOD]
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DTC IndexINFOID:0000000009951662
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 malfunc tion is detected again in the process.
- If it is over 39, it is fixed to 39 unt il the self-diagnosis results are erased.
Other than CAN communication s ystem (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 malfunc tion is detected again in the process.
- If it is over 49, it is fixed to 49 unt il the self-diagnosis results are erased.
NOTE:
With the detection of “U1000” some syst ems 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-260
C1A04 VDC FAIL ON ON ON A, B, CDAS-261
C1A39 STRG SEN CIR ON ON ON A, B, CDAS-262
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-263
U0416 VDC CHECKSUM DIAG ON ON ON A, B, CDAS-264
U0428 STRG SEN CAN CIR 2 ON ON ON A, B, CDAS-265
U1000NOTECAN COMM CIRCUIT ON ON ON A, B, CDAS-266
U1010 CONTROL UNIT (CAN) ON ON ON A, B, C DAS-267
U 111 AREAR CAMERA IMAGE
SIGNAL ON ON ON A, B, C
DAS-268
U1232 ST ANGLE SEN CALIB ON ON ON A, B, C DAS-270
U1305 CAMERA IMAGE CALIB ON ON ON A, B, CDAS-271
U1308 CAMERA CONFIG ON ON ON A, B, CDAS-272
U1309 PUMP UNIT CURRENT ON ON ON A, B, CDAS-273
U130BREAR CAMERA COMM
ERROR ON ON ON A, B, C
DAS-276
U1310 PUMP UNIT CIRCUIT ON ON ON A, B, C DAS-277
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS-254
< BASIC INSPECTION >[MOD]
ACTION TEST
ACTION TEST
DescriptionINFOID:0000000009464902
• Perform action test to verify the customer's concern.
• Perform action test and check the syst em operation after system diagnosis.
WARNING:
Be careful of traffic conditions and safety ar ound the vehicle when performing road test.
CAUTION:
• Fully understand the following it ems well before the road test;
- Precautions: Refer to DAS-73, "Precaution for LDW System Service"
.
- System description for LDW: Refer to DAS-77, "System Description"
.
- System description for BSW: Refer to DAS-152, "System Description"
.
- System description for MOD: Refer to DAS-228, "System Description"
.
- Handling precaution: Refer to DAS-82, "Precautions for Lane Departure Warning"
.
Inspection ProcedureINFOID:0000000009464903
WARNING:
Be careful of traffic conditions and safety ar ound the vehicle when performing road test.
CAUTION:
• Fully understand the following it ems well before the road test;
- Precautions: Refer to DAS-73, "Precaution for LDW System Service"
.
- System description for LDW: Refer to DAS-77, "System Description"
.
- System description for BSW: Refer to DAS-152, "System Description"
.
- System description for MOD: Refer to DAS-228, "System Description"
.
- Handling precaution: Refer to DAS-232, "Precautions for Moving Objects Detection"
.
1.CHECK MOD SYSTEM SETTING
1. Start the engine.
2. Check that the MOD system setting can be enabl ed/disabled on the vehicle information display.
3. Turn OFF the ignition switch and wait for 30 seconds or more.
4. Check that the previous setting is saved when the engine starts again.
>> GO TO 2.
2.ACTION TEST FOR MOD
1. Enable the setting of the MOD system on the vehicle information display.
2. Turn warning systems switch ON (w arning systems ON indicator is ON).
3. Check the MOD operation according to the following table.
NOTE:
After the operating conditions of warning are satisfi ed, the warning continues until the vehicle reaches a
higher speed. Refer to DAS-228, "System Description"
.
>> Inspection End.
Vehicle condition/ Driver's operation Vehicle response
Moving Object De-
tection ON indicator Vehicle speed
(Approx.)
[km/h (MPH)] Status of vehicle detection
within detection area Indication on the Moving Object Detection
indicator Buzzer
OFF — — OFF OFF
Blue Less than approx.
8 km/h (5 MPH) Vehicle is detected ON ON
Approx. 8 km/h (5
MPH) or more Vehicle is absent ON OFF
Vehicle is detected ON OFF
Vehicle is not detected ON OFF
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS-258
< BASIC INSPECTION >[MOD]
REAR VIEW CAMERA CALIBRATION
CAUTION:
Make sure that the black/white pattern of the center target is rotated as compared with the left and
right targets.
>> Go to DAS-258, "Work Procedure (Rear View Camera Calibration)"
.
Work Procedure (Rear View Camera Calibration)INFOID:0000000009464909
CAUTION:
Perform the calibration under the sp ecified vehicle condition (fuel full, no-load, specified tire pressure,
etc.). Refer to DAS-256, "Work Procedure (Preparation)"
.
1.CHECK REAR VIEW CAMERA HEIGHT
Measure the rear view camera height “H”.
>> GO TO 2.
2.REAR VIEW CAMERA CALIBRATION
1. Select “Work Support” on “AVM” with CONSULT.
2. Select “REAR CAMERA ITS”.
3. Select "OK". CAUTION:
• Perform the calibration after the ignition or engine has been kept on for at least 10 minutes to
stabilize camera.
• Operate CONSULT outside the vehicle, and close al l doors to retain appropriate vehicle altitude.
4. Input the rear view camera height "H", and then touch "APPLY".
5. Confirm that the same value is displayed on the center display.
6. Confirm the following items:
- The target should be accurately placed.
- The vehicle should be stopped.
- The vehicle should be under the specified vehicle condition.
7. Select “Start” to perform calibration.
8. Confirm the displayed item.
- “Completed”: Select “Completion”.
- Otherwise, perform the following services:
ALOIA0192GB
ALOIA0188ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS-260
< DTC/CIRCUIT DIAGNOSIS >[MOD]
C1A03 VEHICLE SPEED SENSOR
DTC/CIRCUIT DIAGNOSIS
C1A03 VEHICLE SPEED SENSOR
DTC LogicINFOID:0000000009464910
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 "C1A03" is detected as the current malfunction in "Self Diagnostic Result" of "AVM".
Is
“C1A03” detected as the current malfunction?
YES >> Refer to DAS-260, "Diagnosis Procedure".
NO >> Refer to GI-43, "Intermittent Incident"
.
Diagnosis ProcedureINFOID:0000000009464911
1.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) 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 exc ept for ITS control unit about VDC in "ALL DTC READING" with CONSULT.
Is any DTC detected except for ITS?
YES >> Replace ABS actuator and electr ic unit (control unit). Refer to BRC-128, "Removal and Installa-
tion".
NO >> Replace ITS control unit. Refer to DAS-68, "Removal and Installation"
.
DTCTrouble diagnosis
name DTC detecting condition Possible causes
C1A03 VHCL SPEED SEN
CIRC ITS control unit detects that the result of calcu-
lation about velocity has error. • ABS actuator and electric unit (control
unit)
• ITS control unit
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS
C1A04 ABS/TCS/VDC SYSTEMDAS-261
< DTC/CIRCUIT DIAGNOSIS > [MOD]
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C1A04 ABS/TCS/VDC SYSTEM
DTC LogicINFOID:0000000009464912
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 "C1A04" is detected as the current malfunction in "Self Diagnostic Result" of "AVM".
Is
“C1A04” detected as the current malfunction?
YES >> Refer to DAS-261, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009464913
1.CHECK ABS ACTUATOR AND ELECTRIC UNIT (C ONTROL UNIT) 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 control unit about VDC in "ALL DTC READING" with CONSULT.
Is any DTC detected?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-128, "Removal and Installa-
tion".
NO >> Replace ITS control unit. Refer to DAS-68, "Removal and Installation"
.
DTCTrouble diagnosis
name DTC detecting condition Possible causes
C1A04 VDC CIRCUIT ITS control unit receives the message that
means "VDC is failed" from ABS actuator and
electric unit (control unit). • ABS actuator and electric unit (control
unit)
• ITS control unit
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS-262
< DTC/CIRCUIT DIAGNOSIS >[MOD]
C1A39 STEERING ANGLE SENSOR
C1A39 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000009464914
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-262, "Diagnosis Procedure".
NO >> Refer to GI-43, "Intermittent Incident"
.
Diagnosis ProcedureINFOID:0000000009464915
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