door INFINITI QX56 2011 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2011, Model line: QX56, Model: INFINITI QX56 2011Pages: 5598, PDF Size: 94.53 MB
Page 1638 of 5598
DLK-102
< DTC/CIRCUIT DIAGNOSIS >
B2424 CLOSURE CONDITION
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace back door lock assembly.
Revision: 2010 May2011 QX56
Page 1639 of 5598
B2425 AUTOMATIC BACK DOOR CONTROL UNITDLK-103
< DTC/CIRCUIT DIAGNOSIS >
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B2425 AUTOMATIC BACK DOOR CONTROL UNIT
DTC LogicINFOID:0000000006225906
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000006225907
1.REPLACE AUTOMATIC BACK DOOR CONTROL MODULE
When DTC [B2425] is detected, replac e automatic back door control module.
>> Replace automatic back door control module. Refer to DLK-262, "
Removal and Installation".
DTCCONSULT-III dis-
play description DTC Detection Condit
ion Possible cause
B2425 AUTO BCK DR CNT
UNIT Automatic back door control unit detected CPU
malfunction Automatic back door control mod-
ule
Revision: 2010 May2011 QX56
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DLK-114
< DTC/CIRCUIT DIAGNOSIS >
B2628 OUTSIDE ANTENNA
B2628 OUTSIDE ANTENNA
DTC LogicINFOID:0000000006225918
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self Diagnostic Result” m ode of “BCM” using CONSULT-III.
Is DTC detected?
YES >> Refer to DLK-108, "Diagnosis Procedure".
NO >> Outside key antenna (back door) is OK.
Diagnosis ProcedureINFOID:0000000006225919
1.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> GO TO 2.
2.CHECK OUTSIDE KEY ANTENNA CIRCUIT
1. Disconnect BCM connector and outside key antenna (back door) connector.
2. Check continuity between BCM harness connector and outside key antenna (back door) harness connec- tor.
DTC CONSULT-III display
description DTC detecting condition Possible cause
B2628 OUTSIDE ANTENNA An excessive high or low voltage from outside key
antenna (back door) is sent to BCM Outside key antenna (back door)
Between BCM – Outside key an-
tenna (back door)
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Back door M71 82, 83 Ground When Intelligent Key is in the
antenna detection area
When Intelligent Key is not in
the antenna detection area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56
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B2628 OUTSIDE ANTENNADLK-115
< DTC/CIRCUIT DIAGNOSIS >
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3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2
1. Replace outside key antenna (back door). (New antenna or other antenna)
2. Connect BCM and outside key antenna (back door) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace outside key antenna (back door).
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
BCM Outside key antenna (back door)
Continuity
Connector Terminal Connector Terminal
M71 82
D153 1
Existed
83 2
BCM GroundContinuity
Connector Terminal
M71 82
Not existed
83
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Back door M71 82, 83 Ground When Intelligent Key is in the
antenna detection area
When Intelligent Key is not in
the antenna detection area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56
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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
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DOOR SWITCHDLK-117
< DTC/CIRCUIT DIAGNOSIS >
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DOOR SWITCH
Component Function CheckINFOID:0000000006225921
1.CHECK FUNCTION
1. Select “DOOR LOCK” of “BCM” using CONSULT-III.
2. Select “DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RL”, “DOOR SW-RR”, in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Door switch is OK.
NO >> Refer to DLK-117, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225922
1.CHECK DOOR SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect malfunctioning door switch connector.
3. Check signal between malfunctioning door switch harness connector and ground using oscilloscope.
Monitor item Condition Status
DOOR SW-DR Dri ver side doorOpen On
Closed Off
DOOR SW-AS Passenger side door Open On
Closed Off
DOOR SW-RL Rear door LH Open On
Closed Off
DOOR SW-RR Rear door RH Open On
Closed Off
Revision: 2010 May2011 QX56
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DLK-118
< DTC/CIRCUIT DIAGNOSIS >
DOOR SWITCH
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK DOOR SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between door switch harness connector and BCM harness connector.
3. Check continuity between door switch harness connector and ground.
(+)
(–)Signal
(Reference value)
Door switch
Connector Terminal
Driver side B34
1Ground 7.0 - 8.0 V
Passenger side B220 7.0 - 8.0 V
Rear LH B71 7.0 - 8.0 V
Rear RH B221 7.0 - 8.0 V
PKIB4960J
PKIB4960J
PKIB4960J
PKIB4960J
Door switch BCMContinuity
Connector Terminal Connector Terminal
Driver side B34
1M6947
Existed
Passenger side B220 45
Rear LH B71 48
Rear RH B221 46
Revision: 2010 May2011 QX56
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DOOR SWITCHDLK-119
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Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK DOOR SWITCH GROUND CIRCUIT
Check continuity between door switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK DOOR SWITCH
Refer to DLK-119, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace malfunctioning door switch.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006225923
1.CHECK DOOR SWITCH
1. Turn ignition switch OFF.
2. Disconnect malfunctioning door switch connector.
3. Check continuity between door switch terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace malfunction door switch.
Door switch
GroundContinuity
Connector Terminal
Driver side B34
1 Not existed
Passenger side B220
Rear LH B71
Rear RH B221
Door switch
GroundContinuity
Connector Terminal
B34
3Existed
B220
B71
B221
Door switch Condition Continuity
Terminal
1 3 Door switch Pressed Not existed
Released Existed
Revision: 2010 May2011 QX56
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DLK-120
< DTC/CIRCUIT DIAGNOSIS >
BACK DOOR SWITCH
BACK DOOR SWITCH
Component Function CheckINFOID:0000000006225924
1.CHECK FUNCTION
1. Select “DOOR LOCK” of “BCM” using CONSULT-III.
2. Select “DOOR SW-BK” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Door switch is OK.
NO >> Refer to DLK-120, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225925
1.CHECK BACK DOOR SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect back door lock assembly connector.
3. Check signal between back door lock assembly harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK BACK DOOR SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between back door lock as sembly harness connector and BCM harness connector.
3. Check continuity between back door lock assembly harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
Monitor item Condition Status
DOOR SW-BK Driver side door Open On
Closed Off
(+)
(–) Signal
(Reference value)
Back door lock assembly
Connector Terminal
D157 7 Ground 9.0 - 10.0 V
JPMIA0593GB
Back door lock assembly BCM Continuity
Connector Terminal Connector Terminal
D157 7 M69 43 Existed
Back door lock assembly GroundContinuity
Connector Terminal
D157 7 Not existed
Revision: 2010 May2011 QX56
Page 1657 of 5598
BACK DOOR SWITCHDLK-121
< DTC/CIRCUIT DIAGNOSIS >
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3.CHECK BACK DOOR SWITCH GROUND CIRCUIT
Check continuity between back door lo ck assembly harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK BACK DOOR SWITCH
Refer to DLK-121, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace back door lock assembly.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006225926
1.CHECK BACK DOOR SWITCH
1. Turn ignition switch OFF.
2. Disconnect back door lock assembly connector.
3. Check continuity between back door lock assembly terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace back door lock assembly.
Back door lock assembly
GroundContinuity
Connector Terminal
D157 8 Existed
Back door lock assembly Condition Continuity
Terminal
7 8 Door switch Pressed Not existed
Released Existed
Revision: 2010 May2011 QX56