2011 INFINITI QX56 turn signal

DAS-438
< ECU DIAGNOSIS INFORMATION >[BSW]
ADAS CONTROL UNIT
Fail-safe
INFOID:0000000006223862
If a malfunction occurs in each system, ADAS contro l unit cancels each control, sounds a beep, and turns ON
the warning lamp or indicator lamp.
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
+ − Signal name Input/
Output
1
(V/W)
Ground Warning systems
switch
InputIgnition
switch ON When warning systems
switch is not pressed
12 V
When warning systems
switch is pressed 0 V
3
(R/Y) IBA OFF switch Input Ignition
switch
ON When IBA OFF switch is
not pressed
12 V
When IBA OFF switch is
pressed 0 V
4
(LG/B) Warning systems ON
indicator
OutputIgnition
switch ON Warning systems ON indi-
cator ON
0 V
Warning systems ON indi-
cator OFF 12 V
5
(R) ICC brake hold relay
drive signal
OutputIgnition
switch ON —12 V
At “STOP LAMP” test of
“Active test” 0 V
6
(B) Ground — Ignition
switch ON —0 V
7
(L) ITS communication-H — — — —
8
(Y) ITS communication-L — — — —
12
(G/R) Warning buzzer signal Output Ignition
switch ON Warning buzzer operation 0 V
Warning buzzer not oper-
ating
12 V
14
(L) CAN -H — — — —
15
(P) CAN -L — — — —
16
(W/G) Ignition power supply Input Ignition switch ON Battery Voltage
System Buzzer Warning lamp/Indicator lamp Description
Vehicle-to-vehicle distance control mode High-pitched
toneICC system warn
ing lamp Cancel
Conventional (fixed speed) cruise control mode High-pitched
tone
ICC system warn
ing lamp Cancel
Intelligent Brake Assist (IBA) High-pitched
toneIBA OFF indicator lamp Cancel
Forward Collision Warning (FCW) High-pitched
toneIBA OFF indicator lamp Cancel
Distance Control Assist (DCA) High-pitched
tone
ICC system warn
ing lamp Cancel
Lane Departure Warning (LDW) — Lane departure warning lamp Cancel
Revision: 2010 May2011 QX56

DAS-468
< BASIC INSPECTION >[BSW]
ACTION TEST
ACTION TEST
DescriptionINFOID:0000000006223878
Always perform the BSW system action test to check
that the system operates normally after replacing the
side radar LH/RH, or repairing any BSW system malfunction.
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-407, "
Precaution for BSW System Service".
 System description: Refer to DAS-410, "
System Description".
 Normal operating condition: Refer to DAS-522, "
Description".
Work ProcedureINFOID:0000000006223879
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-407, "
Precaution for BSW System Service".
 System description: Refer to DAS-410, "
System Description".
 Normal operating condition: Refer to DAS-522, "
Description".
1.BSW SYSTEM ACTION TEST
1. Drive the vehicle.
2. Turn warning systems switch ON (w arning systems ON indicator is ON).
3. Check BSW operation according to the following table.
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
BSW indicator Buzzer
OFF — — — OFF OFF
ON Less than ap-
prox.
29 (18) —— OFF OFF
Approx. 32 (20)
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
JSOIA0251GBJSOIA0252GB
JSOIA0251GB
Revision: 2010 May2011 QX56

DAS-472
< DTC/CIRCUIT DIAGNOSIS >[BSW]
C1A03 VEHICLE SPEED SENSOR
C1A03 VEHICLE SPEED SENSOR
DTC LogicINFOID:0000000006223884
DTC DETECTION LOGIC
NOTE:
If DTC “C1A03” is detected along
with DTC “U1000” or “C1A04”, first diagnose the DTC “U1000” or “C1A04”.
 Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
 Refer to DAS-348, "
DTC Logic" for DTC “C1A04”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Drive the vehicle at 30 km/h (19 MPH) or more. CAUTION:
Always drive safely.
4. Stop the vehicle.
5. Perform “All DTC Reading” with CONSULT-III.
6. Check if the “C1A03” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A03” detected as the current malfunction?
YES-1 (BSW warning lamp: ON)>>Refer to DAS-472, "Diagnosis Procedure".
YES-2 (BSW warning lamp: OFF)>>Refer to CCS-87, "
Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223885
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A04” or “U1000” is detected other than “C1A03” in “Self Diagnostic Result” of “ICC/ADAS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-440, "
DTC Index".
NO >> GO TO 2.
2.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-51, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board
display) Trouble diagnosis
name DTC detecting condition Possible causes
C1A03 (3) VHCL SPEED SE
CIRC If the vehicle speed signal (wheel speed) from
ABS actuator and electric
unit (control unit) re-
ceived by the ADAS control unit via CAN com-
munication, are inconsistent  Wheel speed sensor
 ABS actuator and electric unit (control
unit)
 ADAS control unit
Revision: 2010 May2011 QX56

DAS
C1A15 GEAR POSITIONDAS-473
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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C1A15 GEAR POSITION
DescriptionINFOID:0000000006228224
ADAS control unit judges the gear position based on the following signals.
 Current gear position signal transmit ted from TCM via CAN communication.
 Value of gear ratio calculated from input speed signal transmitted from TCM via CAN communication.
 Value of gear ratio calculated from the vehicle speed signal transmitted from ABS actuator and electric unit
(control unit) via CAN communication.
DTC LogicINFOID:0000000006228225
DTC DETECTION LOGIC
NOTE:
If DTC “C1A15” is detected along with DTC “U1000”, “C1A03”, or “C1A04 ”, first diagnose the DTC “U1000”,
“C1A03”, or “C1A04”.
 Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
 Refer to DAS-472, "
DTC Logic" for DTC “C1A03”.
 Refer to CCS-89, "
DTC Logic" for DTC “C1A04”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Drive the vehicle at 10 km/h (6 MPH) or faster for approximately 15 minutes or more. CAUTION:
Always drive safely.
4. Stop the vehicle.
5. Perform “All DTC Readi ng” with CONSULT-III.
6. Check if “C1A15” is detected as the current malf unction in the “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A15” detected as the current malfunction?
YES >> Refer to DAS-473, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228226
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A03”, “C1A04”, or “U1000” is detected other than “C1A15” in “Self Diagnostic Result” of “ICC/
ADAS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-440, "
DTC Index".
NO >> GO TO 2.
2.CHECK VEHICLE SPEED SIGNAL
Check that “VHCL SPEED SE” operates normally in “DATA MONITOR” of “ICC/ADAS”.
CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
DTC
(On board dis- play) Trouble diagnosis
name DTC detecting condition Possible causes
C1A15 (15) GEAR POSITION A mismatch between an current gear posi-
tion signal transmitted from TCM via CAN
communication and a gear position calculat-
ed by the ADAS control unit continues for
approximately 11 minutes or more  Input speed sensor
 Vehicle speed sensor A/T (output speed
sensor)
TCM
Revision: 2010 May2011 QX56

DAS
C1A24 NP RANGEDAS-475
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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C1A24 NP RANGE
DTC LogicINFOID:0000000006228227
DTC DETECTION LOGIC
NOTE:
If DTC “C1A24” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to DAS-486,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.CHECK DTC REPRODUCE (1)
1. Start the engine.
2. Turn the BSW system ON.
3. Wait for approximately 5 minutes or more afte r shifting the selector lever to “P” position.
4. Perform “All DTC Readi ng” with CONSULT-III.
5. Check if the “C1A24” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A24” detected as the current malfunction?
YES >> Refer to DAS-475, "Diagnosis Procedure".
NO >> GO TO 2.
2.CHECK DTC REPRODUCE (2)
1. Wait for approximately 5 minutes or more afte r shifting the selector lever to “N” position.
2. Perform “All DTC Reading”.
3. Check if the “C1A24” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A24” detected as the current malfunction?
YES >> Refer to DAS-475, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228228
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A24” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK NP POSITION SWITCH SIGNAL
Check that “NP RANGE SW” operates normally in “DATA MONITOR” of “ICC/ADAS”.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
3.CHECK TCM DATA MONITOR
Check that “SLCT LVR POSI” operates normall y in “DATA MONITOR” of “TRANSMISSION”.
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> GO TO 4.
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
C1A24 (24) NP RANGE A mismatch between a shift position signal
transmitted from TCM via CAN communica-
tion and an current gear position signal contin-
ues for 60 seconds or more TCM
 Transmission range switch
Revision: 2010 May2011 QX56

DAS
U1000 CAN COMM CIRCUITDAS-485
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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U1000 CAN COMM CIRCUIT
SIDE RADAR LH
SIDE RADAR LH : DescriptionINFOID:0000000006223905
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-28, "
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.
SIDE RADAR LH : DTC LogicINFOID:0000000006223906
DTC DETECTION LOGIC
SIDE RADAR LH : Diagnosis ProcedureINFOID:0000000006223907
1.PERFORM THE SELF-DIAGNOSIS
1. Start the engine.
2. Turn the BSW system ON, and then wait for 2 seconds or more.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “SIDE RADAR
LEFT”.
Is
“U1000” detected as the current malfunction?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-40, "
Intermittent Incident".
SIDE RADAR RH
SIDE RADAR RH : DescriptionINFOID:0000000006223908
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-28, "
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 Trouble diagnosis name DTC detecting condition Possible causes
U1000 CAN COMM CIRCUIT If Side radar LH is not transmitting or receiving ITS
communication signal for 2 seconds or more ITS communication system
Revision: 2010 May2011 QX56

DAS-486
< DTC/CIRCUIT DIAGNOSIS >[BSW]
U1000 CAN COMM CIRCUIT
SIDE RADAR RH : DTC Logic
INFOID:0000000006223909
DTC DETECTION LOGIC
SIDE RADAR RH : Diagnosis ProcedureINFOID:0000000006223910
1.PERFORM THE SELF-DIAGNOSIS
1. Start the engine.
2. Turn the BSW system ON, and then wait for 2 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 “SIDE RADAR
RIGHT”.
Is
“U1000” detected as the current malfunction?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-40, "
Intermittent Incident".
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DescriptionINFOID:0000000006223911
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:0000000006223912
DTC DETECTION LOGIC
NOTE:
If “U1000” is detected, first diagnose the CAN communication system.
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006223913
1.PERFORM THE SELF-DIAGNOSIS
1. Turn the ignition switch ON.
2. Turn the BSW 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”.
DTC Trouble diagnosis name DTC detecting condition Possible causes
U1000 CAN COMM CIRCUIT If Side radar RH is not transmitting or receiving
ITS communication signal for 2 seconds or more ITS communication system
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

DAS-488
< DTC/CIRCUIT DIAGNOSIS >[BSW]
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
SIDE RADAR LH
SIDE RADAR LH : DescriptionINFOID:0000000006223914
CAN controller controls the communication of
ITS communication signal and the error detection.
SIDE RADAR LH : DTC LogicINFOID:0000000006223915
DTC DETECTION LOGIC
SIDE RADAR LH : Diagnosis ProcedureINFOID:0000000006223916
1.CHECK SELF-DIAGNOSIS RESULT
1. Turn the BSW system ON.
2. Perform “All DTC Reading” with CONSULT-III.
3. Check if the “U1010” is detected as the current ma lfunction in “Self Diagnostic Result” of “SIDE RADAR
LEFT”.
Is
“U1010” detected as the current malfunction?
YES >> Replace the side radar LH. DAS-523, "Removal and Installation".
NO >> INSPECTION END
SIDE RADAR RH
SIDE RADAR RH : DescriptionINFOID:0000000006223917
CAN controller controls the communication of ITS communication signal and the error detection.
SIDE RADAR RH : DTC LogicINFOID:0000000006223918
DTC DETECTION LOGIC
SIDE RADAR RH : Diagnosis ProcedureINFOID:0000000006223919
1.CHECK SELF-DIAGNOSIS RESULT
1. Turn the BSW system ON.
2. Perform “All DTC Reading” with CONSULT-III.
3. Check if the “U1010” is detected as the current ma lfunction in “Self Diagnostic Result” of “SIDE RADAR
RIGHT”.
Is
“U1010” detected as the current malfunction?
YES >> Replace the side radar RH. DAS-523, "Removal and Installation".
NO >> INSPECTION END
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DescriptionINFOID:0000000006223920
CAN controller controls the communication of CA N communication signal and ITS communication signal, and
the error detection.
DTC Trouble diagnosis name DTC detecting condition Possible cause
U1010 CONTROL UNIT (CAN) If side radar LH detects malfunction by CAN controller initial
diagnosis.
Side radar LH
DTC Trouble diagnosis name DTC detecting condition Possible cause
U1010 CONTROL UNIT (CAN) If Side radar RH detects malfunction by CAN controller initial
diagnosis. Side radar RH
Revision: 2010 May2011 QX56