U1000 NISSAN TEANA 2014 User Guide

DAS-2
U1000 CAN COMM CIRCUIT ............................48
Description ........................................................... ...48
DTC Logic ...............................................................48
Diagnosis Procedure ..............................................48
U1010 CONTROL UNIT (CAN) .........................49
Description ........................................................... ...49
DTC Logic ...............................................................49
Diagnosis Procedure ..............................................49
U111A REAR CAMERA IMAGE SIGNAL CIR-
CUIT ................................................................ ...
50
DTC Logic ............................................................ ...50
Diagnosis Procedure ..............................................50
U1232 STEERING ANGLE SENSOR ................52
DTC Logic ............................................................ ...52
Diagnosis Procedure ..............................................52
U1305 CAMERA IMAGE CALIB .......................53
DTC Logic ............................................................ ...53
Diagnosis Procedure ..............................................53
U1308 CAMERA CONFIG .................................54
DTC Logic ............................................................ ...54
Diagnosis Procedure ..............................................54
U1309 PUMP UNIT CURRENT .........................55
DTC Logic ............................................................ ...55
Diagnosis Procedure ..............................................55
U130B REAR CAMERA COMM ERROR ..........58
DTC Logic ............................................................ ...58
Diagnosis Procedure ..............................................58
U1310 PUMP UNIT CIRCUIT ............................59
DTC Logic ............................................................ ...59
Diagnosis Procedure ..............................................59
POWER SUPPLY AND GROUND CIRCUIT .....62
Diagnosis Procedure ........................................... ...62
WARNING SYSTEMS SWITCH CIRCUIT .........63
Component Function Check ................................ ...63
Diagnosis Procedure ..............................................63
Component Inspection ............................................64
WARNING SYSTEMS ON INDICATOR CIR-
CUIT ................................................................ ...
65
Component Function Check ................................ ...65
Diagnosis Procedure ..............................................65
Component Inspection ............................................66
WARNING BUZZER CIRCUIT ...........................67
Component Function Check ................................ ...67
Diagnosis Procedure ..............................................67
REMOVAL AND INSTALLATION ...............68
ITS CONTROL UNIT ....................................... ...68
Removal and Installation ..................................... ...68
REAR VIEW CAMERA ......................................69
Exploded View ..................................................... ...69
Removal and Installation .........................................69
REAR VIEW CAMERA WASHER CONTROL
UNIT ................................................................ ...
70
Exploded View ..................................................... ...70
Removal and Installation .........................................70
REAR VIEW CAMERA AIR PUMP MOTOR .. ...71
Exploded View ..................................................... ...71
Removal and Installation .........................................71
LDW
PRECAUTION ........ ....................................
72
PRECAUTIONS .............................................. ...72
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
72
Precaution for Work ................................................72
Precautions For Harness Repair .............................72
Precaution for LDW System Service .................... ...73
PREPARATION ..........................................74
PREPARATION .............................................. ...74
Special Service Tool ............................................ ...74
SYSTEM DESCRIPTION ...........................75
COMPONENT PARTS .................................... ...75
Component Parts Location .................................. ...75
Component Description ..........................................76
SYSTEM ............................................................77
System Description .............................................. ...77
Fail-safe (ITS Control Unit) .....................................79
Fail-safe (Rear View Camera) ................................79
OPERATION ......................................................80
Switch Name and Function .................................. ...80
Menu Displayed by Pressing Each Switch ..............80
HANDLING PRECAUTION ............................ ...82
Precautions for Lane Departure Warning ............ ...82
DIAGNOSIS SYSTEM (ITS CONTROL UNIT) ...83
CONSULT Function (AVM) .................................. ...83
ECU DIAGNOSIS INFORMATION .............86
ITS CONTROL UNIT .........................................86
Reference Value .................................................. ...86
Fail-safe ..................................................................88
DTC Inspection Priority Chart .............................. ...88
DTC Index ............................................................ ...89
WIRING DIAGRAM ....................................91
DRIVER ASSISTANCE SYSTEMS ................ ...91
Wiring Diagram .................................................... ...91
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-3
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BASIC INSPECTION .......
..........................100
DIAGNOSIS AND REPAIR WORK FLOW .... ..100
Work Flow ........................................................... ..100
Diagnostic Work Sheet ..........................................101
PRE-INSPECTION FOR DIAGNOSIS ..............103
Inspection Procedure .......................................... ..103
ACTION TEST ..................................................104
Description .......................................................... ..104
Inspection Procedure ............................................104
ADDITIONAL SERVICE WHEN REPLACING
REAR VIEW CAMERA ................................... ..
106
Description .......................................................... ..106
Work Procedure ....................................................106
REAR VIEW CAMERA CALIBRATION ...........107
Description .......................................................... ..107
Work Procedure (Preparation) ..............................107
Work Procedure (Target Setting) ..........................108
Work Procedure (Rear View Camera Calibration) ..109
DTC/CIRCUIT DIAGNOSIS .......................111
C1A03 VEHICLE SPEED SENSOR ............... ..111
DTC Logic ........................................................... ..111
Diagnosis Procedure .............................................111
C1A04 ABS/TCS/VDC SYSTEM ......................112
DTC Logic ........................................................... ..112
Diagnosis Procedure .............................................112
C1A39 STEERING ANGLE SENSOR ..............113
DTC Logic ........................................................... ..113
Diagnosis Procedure .............................................113
U0122 VDC P-RUN DIAG ................................114
DTC Logic ........................................................... ..114
Diagnosis Procedure .............................................114
U0416 VDC CHECKSUM DIAG .......................115
DTC Logic ........................................................... ..115
Diagnosis Procedure .............................................115
U0428 STEERING ANGLE SENSOR ..............116
DTC Logic ........................................................... ..116
Diagnosis Procedure .............................................116
U1000 CAN COMM CIRCUIT ...........................117
Description .......................................................... ..117
DTC Logic .............................................................117
Diagnosis Procedure .............................................117
U1010 CONTROL UNIT (CAN) ........................118
Description .......................................................... ..118
DTC Logic .............................................................118
Diagnosis Procedure .............................................118
U111A REAR CAMERA IMAGE SIGNAL CIR-
CUIT ................................................................
119
DTC Logic ............................................................ ..119
Diagnosis Procedure .............................................119
U1232 STEERING ANGLE SENSOR .............121
DTC Logic ..............................................................121
Diagnosis Procedure .............................................121
U1305 CAMERA IMAGE CALIB .....................122
DTC Logic ..............................................................122
Diagnosis Procedure .............................................122
U1308 CAMERA CONFIG ..............................123
DTC Logic ..............................................................123
Diagnosis Procedure .............................................123
U1309 PUMP UNIT CURRENT .......................124
DTC Logic ..............................................................124
Diagnosis Procedure .............................................124
U130B REAR CAMERA COMM ERROR .......127
DTC Logic ..............................................................127
Diagnosis Procedure .............................................127
U1310 PUMP UNIT CIRCUIT ..........................128
DTC Logic ..............................................................128
Diagnosis Procedure .............................................128
POWER SUPPLY AND GROUND CIRCUIT ..131
Diagnosis Procedure .............................................131
WARNING SYSTEMS SWITCH CIRCUIT ......132
Component Function Check ..................................132
Diagnosis Procedure .............................................132
Component Inspection ...........................................133
WARNING SYSTEMS ON INDICATOR CIR-
CUIT ................................................................
134
Component Function Check ................................ ..134
Diagnosis Procedure .............................................134
Component Inspection ...........................................135
WARNING BUZZER CIRCUIT ........................136
Component Function Check ..................................136
Diagnosis Procedure .............................................136
SYMPTOM DIAGNOSIS ............................137
LDW SYSTEM SYMPTOMS ...........................137
Symptom Table ................................................... ..137
LANE DEPARTURE WARNING LAMP DOES
NOT TURN ON ................................................
138
Description ........................................................... ..138
Diagnosis Procedure .............................................138
THE SYSTEM OPERATES EVEN WHEN US-
ING TURN SIGNAL .........................................
139
Description ........................................................... ..139
Diagnosis Procedure .............................................139
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-5
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U1000 CAN COMM CI
RCUIT ...........................192
Description .......................................................... ..192
DTC Logic .............................................................192
Diagnosis Procedure .............................................192
U1010 CONTROL UNIT (CAN) ........................193
Description .......................................................... ..193
DTC Logic .............................................................193
Diagnosis Procedure .............................................193
U111A REAR CAMERA IMAGE SIGNAL CIR-
CUIT ................................................................ ..
194
DTC Logic ........................................................... ..194
Diagnosis Procedure .............................................194
U1232 STEERING ANGLE SENSOR ..............196
DTC Logic ........................................................... ..196
Diagnosis Procedure .............................................196
U1305 CAMERA IMAGE CALIB ......................197
DTC Logic ........................................................... ..197
Diagnosis Procedure .............................................197
U1308 CAMERA CONFIG ................................198
DTC Logic ........................................................... ..198
Diagnosis Procedure .............................................198
U1309 PUMP UNIT CURRENT ........................199
DTC Logic ........................................................... ..199
Diagnosis Procedure .............................................199
U130B REAR CAMERA COMM ERROR ........202
DTC Logic ........................................................... ..202
Diagnosis Procedure .............................................202
U1310 PUMP UNIT CIRCUIT ...........................203
DTC Logic ........................................................... ..203
Diagnosis Procedure .............................................203
POWER SUPPLY AND GROUND CIRCUIT ....206
Diagnosis Procedure ........................................... ..206
WARNING SYSTEMS SWITCH CIRCUIT .......207
Component Function Check ................................ ..207
Diagnosis Procedure .............................................207
Component Inspection ..........................................208
WARNING SYSTEMS ON INDICATOR CIR-
CUIT ................................................................ ..
209
Component Function Check ................................ ..209
Diagnosis Procedure .............................................209
Component Inspection ..........................................210
WARNING BUZZER CIRCUIT .........................211
Component Function Check ................................ ..211
Diagnosis Procedure .............................................211
SYMPTOM DIAGNOSIS ............................212
BSW SYSTEM SYMPTOMS .......................... ..212
Symptom Table ................................................... ..212
SWITCH DOES NOT TURN ON / SWITCH
DOES NOT TURN OFF ...................................
213
Description ........................................................... ..213
Diagnosis Procedure .............................................213
BSW SYSTEM SETTINGS CANNOT BE
TURNED ON/OFF IN VEHICLE INFORMA-
TION DISPLAY ................................................
215
Description ........................................................... ..215
Diagnosis Procedure .............................................215
NORMAL OPERATING CONDITION .............216
Description .............................................................216
REMOVAL AND INSTALLATION .............217
WARNING SYSTEMS SWITCH ......................217
Removal and Installation ..................................... ..217
BSW INDICATOR ...........................................218
Exploded View .......................................................218
Removal and Installation .......................................218
REAR VIEW CAMERA ....................................219
Exploded View .......................................................219
Removal and Installation .......................................219
REAR VIEW CAMERA WASHER CONTROL
UNIT ................................................................
220
Exploded View ..................................................... ..220
Removal and Installation .......................................220
REAR VIEW CAMERA AIR PUMP MOTOR ...221
Exploded View .......................................................221
Removal and Installation .......................................221
MOD
PRECAUTION ...... ......................................
222
PRECAUTIONS ...............................................222
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
222
Precaution for Work ...............................................222
Precautions For Harness Repair ...........................222
PREPARATION .........................................224
PREPARATION ...............................................224
Special Service Tool ............................................ ..224
SYSTEM DESCRIPTION ...........................225
COMPONENT PARTS ....................................225
Component Parts Location .................................. ..225
Component Description .........................................226
SYSTEM ..........................................................228
System Description .............................................. ..228
OPERATION ...................................................231
System Display and Warning ................................231
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-6
HANDLING PRECAUTION ..............................232
Precautions for Moving Objects Detection .......... ..232
DIAGNOSIS SYSTEM (ITS CONTROL UNIT) .233
CONSULT Function (AVM) ................................. ..233
ECU DIAGNOSIS INFORMATION .............236
ITS CONTROL UNIT ....................................... .236
Reference Value .................................................. ..236
Fail-safe .................................................................238
DTC Inspection Priority Chart ................................238
DTC Index .............................................................239
WIRING DIAGRAM ....................................241
DRIVER ASSISTANCE SYSTEMS ................ .241
Wiring Diagram .................................................... ..241
BASIC INSPECTION ..................................250
DIAGNOSIS AND REPAIR WORK FLOW ..... .250
Work Flow ............................................................ ..250
Diagnostic Work Sheet ..........................................251
PRE-INSPECTION FOR DIAGNOSIS .............253
Inspection Procedure ........................................... ..253
ACTION TEST .................................................254
Description ........................................................... ..254
Inspection Procedure .............................................254
ADDITIONAL SERVICE WHEN REPLACING
REAR VIEW CAMERA ................................... .
255
Description ........................................................... ..255
Work Procedure .....................................................255
REAR VIEW CAMERA CALIBRATION ..........256
Description ........................................................... ..256
Work Procedure (Preparation) ...............................256
Work Procedure (Target Setting) ...........................257
Work Procedure (Rear View Camera Calibration) ..258
DTC/CIRCUIT DIAGNOSIS ...................... ..260
C1A03 VEHICLE SPEED SENSOR ............... .260
DTC Logic ............................................................ ..260
Diagnosis Procedure .............................................260
C1A04 ABS/TCS/VDC SYSTEM .....................261
DTC Logic ............................................................ ..261
Diagnosis Procedure .............................................261
C1A39 STEERING ANGLE SENSOR .............262
DTC Logic ............................................................ ..262
Diagnosis Procedure .............................................262
U0122 VDC P-RUN DIAG ................................263
DTC Logic ............................................................ ..263
Diagnosis Procedure .............................................263
U0416 VDC CHECKSUM DIAG ......................264
DTC Logic ............................................................ .264
Diagnosis Procedure .............................................264
U0428 STEERING ANGLE SENSOR ..............265
DTC Logic ............................................................ .265
Diagnosis Procedure .............................................265
U1000 CAN COMM CIRCUIT ...........................266
Description ........................................................... .266
DTC Logic .............................................................266
Diagnosis Procedure .............................................266
U1010 CONTROL UNIT (CAN) ........................267
Description ........................................................... .267
DTC Logic .............................................................267
Diagnosis Procedure .............................................267
U111A REAR CAMERA IMAGE SIGNAL CIR-
CUIT ................................................................ ..
268
DTC Logic ............................................................ .268
Diagnosis Procedure .............................................268
U1232 STEERING ANGLE SENSOR ..............270
DTC Logic ............................................................ .270
Diagnosis Procedure .............................................270
U1305 CAMERA IMAGE CALIB ......................271
DTC Logic ............................................................ .271
Diagnosis Procedure .............................................271
U1308 CAMERA CONFIG ................................272
DTC Logic ............................................................ .272
Diagnosis Procedure .............................................272
U1309 PUMP UNIT CURRENT ........................273
DTC Logic ............................................................ .273
Diagnosis Procedure .............................................273
U130B REAR CAMERA COMM ERROR .........276
DTC Logic ............................................................ .276
Diagnosis Procedure .............................................276
U1310 PUMP UNIT CIRCUIT ...........................277
DTC Logic ............................................................ .277
Diagnosis Procedure .............................................277
POWER SUPPLY AND GROUND CIRCUIT ....280
Diagnosis Procedure ............................................ .280
WARNING SYSTEMS SWITCH CIRCUIT ........281
Component Function Check ................................ .281
Diagnosis Procedure .............................................281
Component Inspection ..........................................282
WARNING SYSTEMS ON INDICATOR CIR-
CUIT ................................................................ ..
283
Component Function Check ................................ .283
Diagnosis Procedure .............................................283
Component Inspection ..........................................284
WARNING BUZZER CIRCUIT .........................285
Component Function Check ................................ .285
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS
ITS CONTROL UNITDAS-19
< ECU DIAGNOSIS INFORMATION > [ITS CONTROL UNIT]
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Fail-safeINFOID:0000000009464654
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:0000000009464655
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-20
< ECU DIAGNOSIS INFORMATION >[ITS CONTROL UNIT]
ITS CONTROL UNIT
DTC Index
INFOID:0000000009464656
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-42
C1A04 VDC FAIL ON ON ON A, B, CDAS-43
C1A39 STRG SEN CIR ON ON ON A, B, CDAS-44
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-45
U0416 VDC CHECKSUM DIAG ON ON ON A, B, CDAS-46
U0428 STRG SEN CAN CIR 2 ON ON ON A, B, CDAS-47
U1000NOTECAN COMM CIRCUIT ON ON ON A, B, CDAS-48
U1010 CONTROL UNIT (CAN) ON ON ON A, B, C DAS-49
U 111 AREAR CAMERA IMAGE
SIGNAL ON ON ON A, B, C
DAS-50
U1232 ST ANGLE SEN CALIB ON ON ON A, B, C DAS-52
U1305 CAMERA IMAGE CALIB ON ON ON A, B, CDAS-53
U1308 CAMERA CONFIG ON ON ON A, B, CDAS-54
U1309 PUMP UNIT CURRENT ON ON ON A, B, CDAS-55
U130BREAR CAMERA COMM
ERROR ON ON ON A, B, C
DAS-58
U1310 PUMP UNIT CIRCUIT ON ON ON A, B, C DAS-59
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-48
< DTC/CIRCUIT DIAGNOSIS >[ITS CONTROL UNIT]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000009464681
CAN COMMUNICATION
CAN (Controller Area Network) is a serial communication
line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units , and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H, CAN-L) allowing a hi gh rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to LAN-32, "CAN COMMUNICATION SYSTEM : CAN Communica-
tion Signal Chart".
ITS COMMUNICATION
• ITS communication is a multiplex communication system . This enables the system to transmit and receive
large quantities of data at high speed by connecting control units with 2 communication lines.
• ITS communication lines adopt twisted-pair line st yle (two lines twisted) for noise immunity.
DTC LogicINFOID:0000000009464682
DTC DETECTION LOGIC
NOTE:
If “U1000” is detected, first di agnose the CAN communication system.
Diagnosis ProcedureINFOID:0000000009464683
1.PERFORM THE SELF-DIAGNOSIS
1. Turn the ignition switch ON.
2. Turn the MAIN switch of ITS system ON, and then wait for 30 seconds or more.
3. Perform “All DTC Reading” with CONSULT.
4. Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “AVM”.
Is
“U1000” detected as the current malfunction?
YES >> Refer to DAS-48, "Description".
NO >> Refer to GI-43, "Intermittent Incident"
.
DTC Trouble diagnosis name DTC detecting condition Possible causes
U1000 CAN COMM CIRCUIT If ITS control unit is not transmitting or receiving
CAN communication signal or ITS communica-
tion signal for 2 seconds or more • CAN communication system
• ITS communication system
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-88
< ECU DIAGNOSIS INFORMATION >[LDW]
ITS CONTROL UNIT
Fail-safe
INFOID:0000000009951642
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:0000000009951643
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-89
< ECU DIAGNOSIS INFORMATION > [LDW]
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DTC IndexINFOID:0000000009951644
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-111
C1A04 VDC FAIL ON ON ON A, B, CDAS-112
C1A39 STRG SEN CIR ON ON ON A, B, CDAS-113
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-114
U0416 VDC CHECKSUM DIAG ON ON ON A, B, CDAS-115
U0428 STRG SEN CAN CIR 2 ON ON ON A, B, CDAS-116
U1000NOTECAN COMM CIRCUIT ON ON ON A, B, CDAS-117
U1010 CONTROL UNIT (CAN) ON ON ON A, B, C DAS-118
U 111 AREAR CAMERA IMAGE
SIGNAL ON ON ON A, B, C
DAS-119
U1232 ST ANGLE SEN CALIB ON ON ON A, B, C DAS-121
U1305 CAMERA IMAGE CALIB ON ON ON A, B, CDAS-122
U1308 CAMERA CONFIG ON ON ON A, B, CDAS-123
U1309 PUMP UNIT CURRENT ON ON ON A, B, CDAS-124
U130BREAR CAMERA COMM
ERROR ON ON ON A, B, C
DAS-127
U1310 PUMP UNIT CIRCUIT ON ON ON A, B, C DAS-128
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS
U1000 CAN COMM CIRCUITDAS-117
< DTC/CIRCUIT DIAGNOSIS > [LDW]
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U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000009464757
CAN COMMUNICATION
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communicati on speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units , and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to LAN-32, "CAN COMMUNICATION SYSTEM : CAN Communica-
tion Signal Chart".
ITS COMMUNICATION
• ITS communication is a multiplex communication syste m. This enables the system to transmit and receive
large quantities of data at high speed by connec ting control units with 2 communication lines.
• ITS communication lines adopt twisted-pair line st yle (two lines twisted) for noise immunity.
DTC LogicINFOID:0000000009464758
DTC DETECTION LOGIC
NOTE:
If “U1000” is detected, first di agnose the CAN communication system.
Diagnosis ProcedureINFOID:0000000009464759
1.PERFORM THE SELF-DIAGNOSIS
1. Turn the ignition switch ON.
2. Turn the MAIN switch of ITS system ON, and then wait for 30 seconds or more.
3. Perform “All DTC Reading” with CONSULT.
4. Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “AVM”.
Is
“U1000” detected as the current malfunction?
YES >> Refer to DAS-117, "Description".
NO >> Refer to GI-43, "Intermittent Incident"
.
DTC Trouble diagnosis name DTC detecting condition Possible causes
U1000 CAN COMM CIRCUIT If ITS control unit is not transmitting or receiving
CAN communication signal or ITS communica-
tion signal for 2 seconds or more • CAN communication system
• ITS communication system
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM