INFINITI QX56 2011 Factory Service Manual

DAS-516
< DTC/CIRCUIT DIAGNOSIS >[BSW]
WARNING SYSTEMS SWITCH CIRCUIT
2. Check continuity between the ADAS control unit harness connector and twin switch harness connector.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair the harnesses or connectors.
5.CHECK WARNING SYSTEMS SWITCH SI
GNAL INPUT CIRCUIT FOR SHORT
Check continuity between the ADAS control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> Repair the harnesses or connectors.
Component InspectionINFOID:0000000006223973
1.CHECK WARNING SYSTEMS SWITCH
Check continuity of warning systems switch.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace warning systems switch.
ADAS control unit Twin switch Continuity
Connector Terminal Connector Terminal
B61 1 M127 2 Existed
ADAS control unit GroundContinuity
Connector Terminal
B61 1 Not existed
Terminal Condition Continuity
23 When warning systems switch is pressed Existed
When warning systems switch is released Not existed
Revision: 2010 May2011 QX56

DAS
WARNING SYSTEMS ON INDICATOR CIRCUITDAS-517
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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WARNING SYSTEMS ON INDICATOR CIRCUIT
Component Function CheckINFOID:0000000006223974
1.CHECK WARNING SYSTEMS ON INDICATOR
1. Turn the ignition switch ON.
2. Select the active test item “WARNING SY STEM IND” of “ICC/ADAS” with CONSULT-III.
3. With operating the test item, check the operation.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Refer to DAS-517, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006223975
1.CHECK WARNING ON INDICATOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect twin switch connector.
3. Turn ignition switch ON.
4. Check voltage between twin switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the warning systems ON indicator power supply circuit.
2.CHECK WARNING SYSTEMS ON INDICATOR SIGNAL FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect the ADAS control unit harness connector.
3. Check continuity between the ADAS control uni t harness connector and twin switch harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the harnesses or connectors.
3.CHECK WARNING SYSTEMS ON INDI CATOR SIGNAL CIRCUIT FOR SHORT
Check continuity between the ADAS control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4. On : Warning systems ON indicator illuminates
Off : Warning systems ON in
dicator is turned OFF
Te r m i n a l s
Vo l ta g e
(Approx.)
(+) (
−)
Twin switch Ground
Connector Terminal
M127 8 Battery voltage
ADAS control unit Twin switch Continuity
Connector Terminal Connector Terminal
B61 4 M127 9 Existed
ADAS control unit
GroundContinuity
Connector Terminal
B61 4 Not existed
Revision: 2010 May2011 QX56

DAS-518
< DTC/CIRCUIT DIAGNOSIS >[BSW]
WARNING SYSTEMS ON
INDICATOR CIRCUIT
NO >> Repair the harnesses or connectors.
4.CHECK WARNING SYSTEMS ON INDICATOR
Check the warning systems ON indicator. Refer to DAS-518, "
Component Inspection".
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> Replace warning systems switch. DAS-404, "
Removal and Installation".
Component InspectionINFOID:0000000006223976
1.CHECK WARNING SYSTEMS ON INDICATOR
Apply battery voltage to warning systems switch termi nals 8 and 9, and then check if the warning systems ON
indicator illuminates.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace the warning systems switch. Refer to DAS-404, "
Removal and Installation".
Te r m i n a l s
ConditionDriver warning
systems ON in-
dicator
(+) (-)
89 When the battery voltage is applied On
When the battery voltage is not applied Off
Revision: 2010 May2011 QX56

DAS
WARNING BUZZER CIRCUITDAS-519
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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WARNING BUZZER CIRCUIT
Component Function CheckINFOID:0000000006223977
1.CHECK WARNING BUZZER
1. Turn the ignition switch ON.
2. Select the active test item “LDP BU ZZER” of “ICC/ADAS” with CONSULT-III.
3. With operating the test item, check the operation.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Refer to DAS-393, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006223978
1.CHECK WARNING BUZZER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the warning buzzer connector.
3. Turn ignition switch ON.
4. Check voltage between the warning buzzer harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the warning buzzer power supply circuit.
2.CHECK WARNING BUZZER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between the warning buzzer harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the harnesses or connectors.
3.CHECK WARNING BUZZER SIGNAL CIRCUIT FOR OPEN
1. Disconnect the ADAS control unit connector.
2. Check continuity between the ADAS control uni t harness connector and warning buzzer harness connec-
tor.
Is the inspection result normal?
On : Warning buzzer is activated.
Off : Warning buzzer is not activated.
Te r m i n a l s Vo l ta g e
(Approx.)
(+) (
−)
Warning buzzer Ground
Connector Terminal
M94 1 Battery voltage
Warning buzzer GroundContinuity
Connector Terminal
M94 3 Existed
ADAS control unit Warning buzzer Continuity
Connector Terminal Connector Terminal
B61 12 M94 2 Existed
Revision: 2010 May2011 QX56

DAS-520
< DTC/CIRCUIT DIAGNOSIS >[BSW]
WARNING BUZZER CIRCUIT
YES >> GO TO 4.
NO >> Repair the harnesses or connectors.
4.CHECK WARNING BUZZER SIGNAL CIRCUIT FOR SHORT
Check continuity between the ADAS control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair the harnesses or connectors.
5.CHECK WARNING BUZZER OPERATION
1. Connect the warning buzzer connector.
2. Turn ignition switch ON.
3. Apply ground to warning buzzer terminal 2.
4. Check condition of the warning buzzer.
Does warning buzzer sound?
YES >> Replace the ADAS control unit.
NO >> Replace the warning buzzer.
ADAS control unit
GroundContinuity
Connector Terminal
M61 12 Not existed
Revision: 2010 May2011 QX56

DAS
BSW SYSTEM SYMPTOMSDAS-521
< SYMPTOM DIAGNOSIS > [BSW]
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SYMPTOM DIAGNOSIS
BSW SYSTEM SYMPTOMS
Symptom TableINFOID:0000000006223979
CAUTION:
Perform the self-diagnosis with CONS ULT-III before the symptom diagnosis. Perform the trouble diag-
nosis if any DTC is detected.
NOTE:
For the operational conditions of BSW, refer to DAS-410, "
System Description".
Symptom Possible cause Inspection item/Reference page
Indicator/warning lamps do not il-
luminate when ignition switch
OFF ⇒ ON. BSW warning lamp (Yellow)
does not illuminate
 BSW warning lamp signal
(CAN)
- Combination meter
- ADAS control unit
 BSW warning lamp (combina- tion meter)  ADAS control unit Active test
“BSW/BSI WARNING LAMP”
Refer to DAS-419, "
CON-
SULT-III Function (ICC/
ADAS)".
 ADAS control unit Data moni-
tor “BSW/BSI WARN LMP”
Refer to DAS-419, "
CON-
SULT-III Function (ICC/
ADAS)"
 Combination meter Data mon-
itor “BSW W/L”
Refer to MWI-30, "
CONSULT-
III Function"
All of indicator/warning
lamps do not illuminate;
 BSW warning lamp
 Warning systems ON indi-
cator  Power supply and ground cir-
cuit of ADAS control unit
 ADAS control unit
 Combination meter Power supply and ground circuit
of ADAS control unit
Refer to
DAS-512, "
ADAS CON-
TROL UNIT : Diagnosis Proce-
dure"
Warning systems ON indica-
tor (on the warning systems
switch) does not illuminate  Harness between ADAS con-
trol unit and warning systems
switch
 Warning systems switch
 ADAS control unit Warning systems ON indicator
circuit
Refer to
DAS-517, "
Diagnosis
Procedure"
BSW indicator does not turn
ON  Harness between side radar
and BSW indicator
 Side radar LH/RH
 BSW indicator Perform self-diagnosis of side ra-
dar
Refer to
DAS-429, "CONSULT-III
Function (SIDE RADAR LEFT)"
or DAS-431, "
CONSULT-III Func-
tion (SIDE RADAR RIGHT)".
BSW system is not activated.
(Indicator/warning lamps illumi-
nate when ignition switch OFF ⇒
ON.) Warning systems ON indica-
tor is not turned ON
⇔ OFF
when operating warning sys-
tems switch  Harness between ADAS con-
trol unit and waning systems
switch
 Harness between warning
systems switch and ground
 ADAS control unit
 Warning systems switch Warning systems ON indicator
circuit
Refer to
DAS-517, "
Diagnosis
Procedure".
Buzzer is not sounding  Buzzer power supply circuit
 Harness between ADAS con-
trol unit and warning buzzer
 Harness between warning
buzzer and ground
 Warning buzzer
 ADAS control unit Warning buzzer circuit
Refer to
DAS-519, "
Diagnosis
Procedure"
Revision: 2010 May2011 QX56

DAS-522
< SYMPTOM DIAGNOSIS >[BSW]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000006223980
PRECAUTIONS FOR BLIND SPOT WARNING (BSW)
 The BSW system is not a replacement for proper dr
iving procedure and are not designed to prevent contact
with vehicles or objects. When changing lanes, always us e the side and rear mirrors and turn and look in the
direction driver will move to ensure it is safe to change lanes. Never rely solely on the BSW system.
 The BSW system may not provide a warning for vehi cles that pass through the detection zone quickly.
 Do not use the BSW system when towing a traile r because the system may not function properly.
 Excessive noise (e.g. audio system volume, open vehi cle window) will interfere with the chime sound, and it
may not be heard.
 The side radar may not be able to detect and activate BSW when certain objects are present such as:
- Pedestrians, bicycles, animals.
- Several types of vehicles such as motorcycles.
- Oncoming vehicles.
- Vehicles remaining in the detection z one when driver accelerate from a stop.
- A vehicle merging into an adjacent lane at a speed approximately the same as vehicle.
- A vehicle approaching rapidly from behind.
- A vehicle which vehicle overtakes rapidly.
 Severe weather or road spray conditions may reduce t he ability of the side radar to detect other vehicles.
 The side radar detection zone is designed based on a standard lane width. When driving in a wider lane, the
side radar may not detect vehicles in an adjacent l ane. When driving in a narrow lane, the side radar may
detect vehicles driving two lanes away.
 The side radar are designed to ignore most stationary objects, however objects such as guardrails, walls,
foliage and parked vehicles may occasionally be detected. This is a normal operating condition.
Revision: 2010 May2011 QX56

DAS
SIDE RADARDAS-523
< REMOVAL AND INSTALLATION > [BSW]
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REMOVAL AND INSTALLATION
SIDE RADAR
Removal and InstallationINFOID:0000000006223981
EXPLODED VIEW
REMOVAL AND INSTALLATION
Removal
1. Remove the side radar RH/LH together with bracket.
2. Remove the side radar connector.
NOTE:
This illustration is an example.
3. Remove the mounting nuts to remove the side radar RH/LH from bracket.
Installation
Note the following, and install in the reverse order of removal.
1. Bracket 2. Bracket 3. Side radar LH
4. Bracket 5. Side radar RH 6. Bracket
A. LH side B. RH side
Refer to GI-4, "
Components" for symbol makes in the figure.
JSOIA0379GB
JSOIA0280ZZ
Revision: 2010 May2011 QX56

DAS-524
< REMOVAL AND INSTALLATION >[BSW]
SIDE RADAR
 Tighten mounting nuts in the numeric
al order as shown in the fig-
ure.
 Always lock the side radar connector.
CAUTION:
 After replacing the side radar, activate (normal usage mode) it in work support mode. Refer to DAS-467, "
Description".
JSOIA0359ZZ
Revision: 2010 May2011 QX56

DAS
BSW INDICATORDAS-525
< REMOVAL AND INSTALLATION > [BSW]
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BSW INDICATOR
Removal and InstallationINFOID:0000000006223982
REMOVAL AND INSTALLATION
Removal
1. Remove the door mirror corner cover. Refer to INT-13, "Exploded View".
2. Remove the BSW indicator.
Installation
Install in the reverse order of removal.
Revision: 2010 May2011 QX56