BATTERY INFINITI QX56 2011 Factory Service Manual

DLK-100
< DTC/CIRCUIT DIAGNOSIS >
B2424 CLOSURE CONDITION
B2424 CLOSURE CONDITION
DTC LogicINFOID:0000000006225903
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self Diagnostic Result” mode of “AUTOMAT IC BACK DOOR CONTROL UNIT” using CONSULT-
III.
Is DTC detected?
YES >> Refer to DLK-100, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006225904
1.CHECK OPEN/CLOSE SWITCH SIGNAL
1. Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2. Select “CLOSE SW”, “OPEN SW” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 2.
2.CHECK AUTOMATIC BACK DOOR CONTROL MODULE OUTPUT
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 4.
NO >> GO TO 3.
3.CHECK OPEN/CLOSE SWITCH CIRCUIT
1. Disconnect automatic back door control module connector.
DTC CONSULT-III display de-
scription DTC detecting condition Possible cause
B2424 CLSR CONDITION When the following conditions are detected after
OPEN/CLOSE operation of the back door closure
motor
 Open switch and close switch are ON  Harness or connector
(Open switch or close switch
circuit is open or shorted)
 Back door lock assembly
Monitor item Condition Status
OPEN SW Back doorHalf latch/fully closed OFF
Open ON
CLOSE SW Open/half latch OFF
Fully closed ON
(+)
(–)Vo l ta g e
(Approx.)
Back door lock assembly
Connector Terminal
D157 4
Ground Battery voltage
5
Revision: 2010 May2011 QX56

DLK-116
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AUTOMATIC BACK DOOR CONTROL UNIT
AUTOMATIC BACK DOOR CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006225920
1.CHECK FUSE, FUSIBLE LINK AND CIRCUIT BREAKER
Check that the following fuse, fusible link and circuit breaker are not fusing.
Is the fuse fusing?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic back door control module connector.
3. Check voltage between automatic back door control module harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK GROUND CIRCUIT
Check continuity between automatic back door control module harness connector and ground.
Does continuity exist?
YES >> INSPECTION END
NO >> Repair or replace harness.
Fuse and fusible link No. Signal name
T (30A) Battery power supply
9 (10A)
4 (10A) Ignition power supply
(+)
(− ) Condition Vol tag e
(Approx.)
Automatic back door control module
Connector Terminal
B26 9
Ground Ignition switch ON
Battery voltage
10
—
28
Automatic back door control module
GroundContinuity
Connector Terminal
B26 34 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

INTELLIGENT KEYDLK-145
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
INTELLIGENT KEY
Component Function CheckINFOID:0000000006225961
1.CHECK FUNCTION
1. Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.
2. Select “RKE OPE COUN1” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Intelligent Key is OK.
NO >> Refer to DLK-145, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225962
1.CHECK INTELLIGENT KEY BATTERY
Check by connecting a resistance (approximately 300 Ω) so that the
current value becomes about 10 mA. Refer to DLK-260, "
Removal
and Installation".
Is the measurement value within the specification?
YES >> Replace Intelligent Key.
NO >> Replace Intelligent Key battery.
Monitor item Condition
RKE OPE COUN1 Check that the numerical value is changing while operating on the Intelligent Key.
Standard : Approx. 2.5 - 3.0V
OCC0607D
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

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

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

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

DLK-162
< DTC/CIRCUIT DIAGNOSIS >
BACK DOOR CLOSURE MOTOR
BACK DOOR CLOSURE MOTOR
Diagnosis ProcedureINFOID:0000000006225989
1.CHECK BACK DOOR CLOSURE MOTOR 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 >> Replace back door lock assembly.
NO >> GO TO 2.
2.CHECK BACK DOOR CLOSURE MOTOR CIRCUIT
1. Disconnect automatic back door control module connector.
2. Check continuity between automatic back door control module harness connector and back door lock
assembly 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.
(+)
(–) Condition Voltag e
(Approx.)
Back door lock assembly
Connector Terminal
D157 1
GroundBack door opener
switch Pressed Battery voltage
2Released0 V
Automatic back door control module Back door lock assembly Continuity
Connector Terminal Connector Terminal
B26 11
D157 1
Existed
12 2
Automatic back door control module GroundContinuity
Connector Terminal
B26 11
Not existed
12
Revision: 2010 May2011 QX56