2011 INFINITI QX56 Factory Service Manual

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Page 1337 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS-372
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
U0415 VDC CAN 1
U0415 VDC CAN 1
DTC LogicINFOID:0000000006228208
DTC DETECTION LOGIC
NOTE:
If DTC “U0415” is detected along with DTC “U
1000”, fir

Page 1338 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS
U0428 STRG SEN CAN 2DAS-373
< DTC/CIRCUIT DIAGNOSIS > [LDW & LDP]
C
D
E
F
G H
I
J
K L
M B
N P A
U0428 STRG SEN CAN 2
DTC LogicINFOID:0000000006223789
DTC DETECTION LOGIC
NOTE:
If DTC “U0428”

Page 1339 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS-374
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DescriptionINFOID:0000000006223791
CAN COMMUNICATION
CAN (Controller A

DAS-374
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DescriptionINFOID:0000000006223791
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-28, "
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.
ADAS CONTROL UNIT : DTC LogicINFOID:0000000006223792
DTC DETECTION LOGIC
NOTE:
If “U1000” is detected, first diagnose the CAN communication system.
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006223793
1.PERFORM THE SELF-DIAGNOSIS
1. Turn the ignition switch ON.
2. Turn the LDP system ON, and then wait for 30 seconds or more.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U1000” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected as the current malfunction?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-40, "
Intermittent Incident".
LANE CAMERA UNIT
LANE CAMERA UNIT : DescriptionINFOID:0000000006223794
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.
LANE CAMERA UNIT : DTC LogicINFOID:0000000006223795
DTC DETECTION LOGIC
DTC
(On board
display) Trouble diagnosis name DTC detecting condition Possible causes
U1000 (100) CAN COMM CIRCUIT If ADAS control unit is not transmitting or receiv-
ing CAN communication signal or ITS communi-
cation signal for 2 seconds or more CAN communication system
ITS communication system
Revision: 2010 May2011 QX56

Page 1340 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS
U1000 CAN COMM CIRCUITDAS-375
< DTC/CIRCUIT DIAGNOSIS > [LDW & LDP]
C
D
E
F
G H
I
J
K L
M B
N P A
LANE CAMERA UNIT : Diagnosis ProcedureINFOID:0000000006223796
1.PERFORM THE SELF-DIAGNOSIS
1. Tur

Page 1341 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS-376
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DescriptionINFOID:0000000006223797
CAN controller controls the com

Page 1342 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS
U150B ECM CAN 3DAS-377
< DTC/CIRCUIT DIAGNOSIS > [LDW & LDP]
C
D
E
F
G H
I
J
K L
M B
N P A
U150B ECM CAN 3
DTC LogicINFOID:0000000006228210
DTC DETECTION LOGIC
NOTE:
If DTC “U150B” is detecte

Page 1343 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS-378
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
U150C VDC CAN 3
U150C VDC CAN 3
DTC LogicINFOID:0000000006228212
DTC DETECTION LOGIC
NOTE:
If DTC “U150C” is detected along with DTC “U
1000”, fir

Page 1344 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS
U150D TCM CAN 3DAS-379
< DTC/CIRCUIT DIAGNOSIS > [LDW & LDP]
C
D
E
F
G H
I
J
K L
M B
N P A
U150D TCM CAN 3
DTC LogicINFOID:0000000006228214
DTC DETECTION LOGIC
NOTE:
If DTC “U150D” is detecte

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