ignition INFINITI QX56 2011 Factory Service Manual

DLK-142
< DTC/CIRCUIT DIAGNOSIS >
BACK DOOR OPENER SWITCH
3.CHECK BACK DOOR OPENER SWITCH GROUND CIRCUIT
Check continuity between back door opener switch assembly harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK BACK DOOR OPENER SWITCH
Refer to DLK-142, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace back door opener switch assembly.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006225957
1.CHECK BACK DOOR OPENER SWITCH
1. Turn ignition switch OFF.
2. Disconnect back door opener switch assembly connector.
3. Check continuity between back door opener switch assembly terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace back door opener switch assembly.
Back door opener switch assembly
GroundContinuity
Connector Terminal
D154 2 Existed
Back door opener switch assembly Condition Continuity
Te r m i n a l
12 Back door opener
switchPressed Existed
Released Not existed
Revision: 2010 May2011 QX56

INTELLIGENT KEY WARNING BUZZERDLK-143
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
INTELLIGENT KEY WARNING BUZZER
Component Function CheckINFOID:0000000006225958
1.CHECK FUNCTION
1. Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.
2. Select “OUTSIDE BUZZER ” in “ACTIVE TEST” mode.
3. Touch “On” or “Off” to check that it works normally.
Is the inspection result normal?
YES >> Intelligent Key warning buzzer is OK.
NO >> Refer to DLK-143, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225959
1.CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10 A fuse, [No. 6, located in fuse block (J/B)].
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.CHECK INTELLIGENT KEY WARNING BUZZER POWER SUPPLY CIRCUIT
1. Disconnect Intelligent Key warning buzzer connector.
2. Check voltage between Intelligent Key warning buzzer harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and Intelligent Key warning buzzer harness connector.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK INTELLIGENT KEY WARNING BUZZER
Refer to DLK-144, "
Component Inspection".
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Replace Intelligent Key warning buzzer.
(+)
(–)Vo l ta g e
(Approx.)
Intelligent Key warning buzzer
Connector Terminal E25 1 Ground Battery voltage
BCM Intelligent Key warning buzzer Continuity
Connector Terminal Connector Terminal
M71 93 E25 3 Existed
BCM GroundContinuity
Connector Terminal
M71 93 Not existed
Revision: 2010 May2011 QX56

DLK-144
< DTC/CIRCUIT DIAGNOSIS >
INTELLIGENT KEY WARNING BUZZER
Component Inspection
INFOID:0000000006225960
1.CHECK INTELLIGENT KEY WARNING BUZZER
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key warning buzzer connector.
3. Connect battery power supply directly to Intelli gent Key warning buzzer terminals and check the opera-
tion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace Intelligent Key warning buzzer.
Intelligent Key warning buzzer Operation
Te r m i n a l
(+) ( −)
1 3 Buzzer sounds
Revision: 2010 May2011 QX56

DLK-150
< DTC/CIRCUIT DIAGNOSIS >
AUTOMATIC BACK DOOR CLOSE SWITCH
AUTOMATIC BACK DOOR CLOSE SWITCH
Component Function CheckINFOID:0000000006225971
1.CHECK FUNCTION
1. Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2. Select “BK DOOR CL SW” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Automatic back door close switch is OK.
NO >> Refer to DLK-150, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225972
1.CHECK AUTOMATIC BACK DOOR CLOSE SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect automatic back door close switch connector.
3. Check voltage between automatic back door close switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK AUTOMATIC BACK DOOR CLOSE SWITCH CIRCUIT
1. Disconnect automatic back door control module connector.
2. Check continuity between automatic back door control module harness connector and automatic back
door close switch harness connector.
3. Check continuity between automatic back door control module harness connector and ground.
Is the inspection result normal?
YES >> Replace automatic back door control module. Refer to DLK-262, "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK AUTOMATIC BACK DOOR CLOSE SWITCH GROUND CIRCUIT
Check continuity between automatic back door close switch harness connector and ground.
Monitor item Condition Status
BK DOOR CL SW Automatic back door close switch Pressed ON
Released OFF
(+)
(–)Vol tag e
(Approx.)
Automatic back door close switch
Connector Terminal D158 1 Ground Battery voltage
Automatic back door control module Automatic back door close switch Continuity
Connector Terminal Connector Terminal
B26 4 D158 1 Existed
Automatic back door control module GroundContinuity
Connector Terminal
B26 4 Not existed
Revision: 2010 May2011 QX56

AUTOMATIC BACK DOOR CLOSE SWITCHDLK-151
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK AUTOMATIC BACK DOOR CLOSE SWITCH
Refer to DLK-151, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace automatic back door close switch.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006225973
1.CHECK AUTOMATIC BACK DOOR CLOSE SWITCH
1. Turn ignition switch OFF.
2. Disconnect automatic back door close switch connector.
3. Check continuity between automatic back door close switch terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace automatic back door close switch.
Automatic back door close switch GroundContinuity
Connector Terminal
D158 2 Existed
Automatic back door close switch Condition Continuity
Te r m i n a l
12 Automatic back door
close switch Pressed Existed
Released Not existed
Revision: 2010 May2011 QX56

DLK-152
< DTC/CIRCUIT DIAGNOSIS >
AUTOMATIC BACK DOOR MAIN SWITCH
AUTOMATIC BACK DOOR MAIN SWITCH
Component Function CheckINFOID:0000000006225974
1.CHECK FUNCTION
1. Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2. Select “MAIN SW” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Automatic back door main switch is OK.
NO >> Refer to DLK-152, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225975
1.CHECK AUTOMATIC BACK DOOR MAIN SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect automatic back door main switch connector.
3. Check voltage between automatic back door main switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK AUTOMATIC BACK DO OR MAIN SWITCH CIRCUIT
1. Disconnect automatic back door control module connector.
2. Check continuity between automatic back door control module harness connector and automatic back
door main switch harness connector.
3. Check continuity between automatic back door control module connector and ground.
Is the inspection result normal?
YES >> Replace automatic back door control module. Refer to DLK-262, "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK AUTOMATIC BACK DOOR MAIN SWITCH GROUND CIRCUIT
Check continuity between automatic back door main switch connector and ground.
Monitor item Condition Status
MAIN SW Automatic back door main switch ON ON
OFF OFF
(+)
(–)Voltag e
(Approx.)
Automatic back door main switch
Connector Terminal M110 1 Ground Battery voltage
Automatic back door control module Automatic back door main switch Continuity
Connector Terminal Connector Terminal
B26 17 M110 1 Existed
Automatic back door control module GroundContinuity
Connector Terminal
B26 17 Not existed
Revision: 2010 May2011 QX56

AUTOMATIC BACK DOOR MAIN SWITCHDLK-153
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK AUTOMATIC BACK DOOR MAIN SWITCH
Refer to DLK-153, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace automatic back door main switch.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006225976
1.CHECK AUTOMATIC BACK DOOR MAIN SWITCH
1. Turn ignition switch OFF.
2. Disconnect automatic back door switch connector.
3. Check continuity between automatic back door main switch terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace automatic back door main switch.
Automatic back door main switch
GroundContinuity
Connector Terminal
M110 3 Existed
Automatic back door main switch Condition Continuity
Terminal
13 Automatic back door
main switchON Existed
OFF Not existed
Revision: 2010 May2011 QX56

DLK-154
< DTC/CIRCUIT DIAGNOSIS >
AUTOMATIC BACK DOOR SWITCH
AUTOMATIC BACK DOOR SWITCH
Component Function CheckINFOID:0000000006225977
1.CHECK FUNCTION
1. Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2. Select “AUTO BD SW” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Automatic back door switch is OK.
NO >> Refer to DLK-154, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225978
1.CHECK AUTOMATIC BACK DOOR SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect automatic back door switch connector.
3. Check voltage between automatic back door switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK AUTOMATIC BACK DOOR SWITCH CIRCUIT
1. Disconnect automatic back door control module connector.
2. Check continuity between automatic back door control module harness connector and automatic back
door switch harness connector.
3. Check continuity between automatic back door control module harness connector and ground.
Is the inspection result normal?
YES >> Replace automatic back door control module. Refer to DLK-262, "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK AUTOMATIC BACK DOOR SWITCH GROUND CIRCUIT
Check continuity between automatic bac k door switch harness connector and ground.
Monitor item Condition Status
AUTO BD SW Automatic back door switch Pressed ON
Released OFF
(+)
(–)Vo l ta g e
(Approx.)
Automatic back door switch
Connector Terminal M127 1 Ground Battery voltage
Automatic back door control module Automatic back door switch Continuity
Connector Terminal Connector Terminal
B26 2 M127 1 Existed
Automatic back door control module GroundContinuity
Connector Terminal
B26 2 Not existed
Revision: 2010 May2011 QX56

AUTOMATIC BACK DOOR SWITCHDLK-155
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK AUTOMATIC BACK DOOR SWITCH
Refer to DLK-155, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace automatic back door switch.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006225979
1.CHECK AUTOMATIC BACK DOOR SWITCH
1. Turn ignition switch OFF.
2. Disconnect automatic back door switch connector.
3. Check continuity between autom atic back door switch terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace automatic back door switch.
Automatic back door switch GroundContinuity
Connector Terminal
M127 3 Existed
Automatic back door switch Condition Continuity
Terminal
1 3 Automatic back door switch Pressed Existed
Released Not existed
Revision: 2010 May2011 QX56

DLK-156
< DTC/CIRCUIT DIAGNOSIS >
HALF LATCH SWITCH
HALF LATCH SWITCH
Component Function CheckINFOID:0000000006225980
1.CHECK FUNCTION
1. Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2. Select “HALF LATCH SW” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Half latch switch is OK.
NO >> Refer to DLK-156, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225981
1.CHECK HALF LATCH SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect back door lock assembly connector.
3. Check voltage between back door lock assembly harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK HALF LATCH SWITCH CIRCUIT
1. Disconnect automatic back door control module connector.
2. Check continuity between automatic back door control module harness connector.
3. Check continuity between automatic back door control module harness connector and ground.
Is the inspection result normal?
YES >> Replace automatic back door control module. Refer to DLK-262, "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK HALF LATCH SWITCH GROUND CIRCUIT
Check continuity between back door lock assembly harness connector and ground.
Monitor item Condition Status
HALF LATCH SW Back door Fully closed/Half latch OFF
Open ON
(–)
(–)Voltag e
(Approx.)
Back door lock assembly
Connector Terminal D157 6 Ground Battery voltage
Automatic back door control module Back door lock assembly Continuity
Connector Terminal Connector Terminal
B26 8 D157 6 Existed
Automatic back door control module GroundContinuity
Connector Terminal
B26 8 Not existed
Back door lock assembly GroundContinuity
Connector Terminal
D157 8 Existed
Revision: 2010 May2011 QX56