2011 INFINITI QX56 Back door

TOUCH SENSORDLK-159
< DTC/CIRCUIT DIAGNOSIS >
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Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK TOUCH SENSOR RH
Refer to DLK-159, "
RH : Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace touch sensor RH.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
RH : Component InspectionINFOID:0000000006225985
1.CHECK TOUCH SENSOR RH
1. Turn ignition switch OFF.
2. Disconnect touch sensor RH connector.
3. Check continuity between touch sensor RH terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace touch sensor RH.
LH
LH : Component Function CheckINFOID:0000000006225986
1.CHECK FUNCTION
1. Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2. Select “TOUCH SEN LH” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Touch sensor LH is OK.
NO >> Refer to DLK-159, "
LH : Diagnosis Procedure".
LH : Diagnosis ProcedureINFOID:0000000006225987
1.CHECK TOUCH SENSOR LH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect touch sensor LH connector.
Automatic back door control module Touch sensor RH Continuity
Connector Terminal Connector Terminal
B26 15 D108 2 Existed
Touch sensor RH ConditionResistance
(Approx.)
Te r m i n a l
1 2 Touch sensor RH Detect obstruction 120
Ω or less
Other than above 1 k Ω ± 10%
Monitor item Condition Status
TOUCH SEN LH Touch sensor LH Other than below OFF
Detect obstruction ON
Revision: 2010 May2011 QX56

DLK-160
< DTC/CIRCUIT DIAGNOSIS >
TOUCH SENSOR
3. Check voltage between touch sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK TOUCH SENSOR LH CIRCUIT
1. Disconnect automatic back door control module connector.
2. Check continuity between automatic back door c ontrol module harness connector and touch sensor LH
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 TOUCH SENSOR LH GROUND CIRCUIT
Check continuity between automatic back door contro l module harness connector and touch sensor LH har-
ness connector.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK TOUCH SENSOR LH
Refer to DLK-160, "
LH : Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace touch sensor LH.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
LH : Component InspectionINFOID:0000000006225988
1.CHECK TOUCH SENSOR LH
1. Turn ignition switch OFF.
2. Disconnect touch sensor LH connector.
(+)
(–)Voltag e
(Approx.)
Touch sensor LH
Connector Terminal D107 1 Ground 6 V
Automatic back door control module Touch sensor LH Continuity
Connector Terminal Connector Terminal
B26 14 D107 1 Existed
Automatic back door control module GroundContinuity
Connector Terminal
B26 14 Not existed
Automatic back door control module Touch sensor LH Continuity
Connector Terminal Connector Terminal
B26 15 D107 2 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

AUTOMATIC BACK DOOR WARNING BUZZERDLK-163
< DTC/CIRCUIT DIAGNOSIS >
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AUTOMATIC BACK DOOR WARNING BUZZER
Diagnosis ProcedureINFOID:0000000006225990
1.CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10 A fuse, [No.9, 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 AUTOMATIC BACK DOOR WARNI NG BUZZER POWER SUPPLY CIRCUIT
1. Disconnect automatic back door warning buzzer connector.
2. Check voltage between automatic back door warning buzzer harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK AUTOMATIC BACK DOOR WARNING BUZZER OUTPUT SIGNAL CIRCUIT
1. Disconnect automatic back door control module connector.
2. Check continuity between automatic back door control module harness connector and automatic back
door warning buzzer harness connector.
3. Check continuity between automatic back door control module harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK AUTOMATIC BACK DOOR WARNING BUZZER
Refer to DLK-163, "
Component Inspection"
Is the inspection result normal?
YES >> Replace automatic back door control module. Refer to DLK-262, "Removal and Installation".
NO >> Replace automatic back door warning buzzer.
Component InspectionINFOID:0000000006225991
1.CHECK AUTOMATIC BACK DOOR WARNING BUZZER
1. Turn ignition switch OFF.
2. Disconnect automatic back door warning buzzer connector.
3. Check battery power supply directly to automatic back door warning buzzer terminals and check the oper-
ation.
(+)
(–)Voltag e
(Approx.)
Automatic back door warning buzzer
Connector Terminal D159 1 Ground Battery voltage
Automatic back door control module Automatic back door warning buzzer Continuity
Connector Terminal Connector Terminal
B26 1 D159 2 Existed
Automatic back door control module GroundContinuity
Connector Terminal
B26 1 Not existed
Revision: 2010 May2011 QX56

DLK-164
< DTC/CIRCUIT DIAGNOSIS >
AUTOMATIC BACK DOOR WARNING BUZZER
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace automatic back door warning buzzer.
Automatic back door warning buzzerOperation
Te r m i n a l
(+) (-) 1 2 Buzzer sounds
Revision: 2010 May2011 QX56

GROUND CIRCUITDLK-165
< DTC/CIRCUIT DIAGNOSIS >
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GROUND CIRCUIT
Component Function CheckINFOID:0000000006225992
1.CHECK FUNCTION
1. Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2. Select “DESTINATION” and “HAZARD” 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 ground circuit is OK.
NO >> Refer to DLK-165, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225993
1.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic back door control module 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.
Monitor item Condition Status
DESTINATION Circuit between automatic
back door control module
terminal 22 and ground Normal NAM
Open or short JPN
HAZARD Circuit between automatic
back door control module terminal 23 and ground Normal ON
Open or short OFF
Automatic back door control module
GroundContinuity
Connector Terminal
B26 22
Existed
23
Revision: 2010 May2011 QX56

DLK-172
< SYMPTOM DIAGNOSIS >
DOOR DOES NOT LOCK/UNLOCK WITH DOOR REQUEST SWITCH
DOOR DOES NOT LOCK/UNLOCK WITH DOOR REQUEST SWITCH
ALL DOOR REQUEST SWITCHES
ALL DOOR REQUEST SWITCHES : DescriptionINFOID:0000000006226005
All doors do not lock/unlock using all door request switches.
ALL DOOR REQUEST SWITCHES : Diagnosis ProcedureINFOID:0000000006226006
1.CHECK REMOTE KEYLESS ENTRY FUNCTION
Check remote keyless entry function.
Does door lock/unlock with Intelligent Key button?
YES >> GO TO 2.
NO >> Refer to DLK-134, "
ComponentFunctionCheck".
2.CHECK “LOCK/UNLOCK BY I-KEY” SETTING IN “WORK SUPPORT”
1. Select “INTELLIGE NT KEY” of “BCM” using CONSULT-III.
2. Select “LOCK/UNLOCK BY I-K EY” in “WORK SUPPORT” mode.
3. Check “LOCK/UNLOCK BY I-KEY” setting in “WORK SUPPORT”. Refer to DLK-41, "
INTELLIGENT KEY : CONSULT-III F unction (BCM - INTELLIGENT KEY)".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Set “ON” in “LOCK/UNLOCK BY I-KEY”.
3.CHECK DOOR SWITCH
Check door switch.
Refer to DLK-117, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK INSIDE KEY ANTENNA
Check inside key antenna.
 Instrument center: Refer to DLK-104, "
DTC Logic".
 Console: Refer to DLK-106, "
DTC Logic".
 Luggage room: Refer to DLK-108, "
DTC Logic".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.CHECK OUTSIDE KEY ANTENNA
Check outside key antenna.
 Driver side: Refer to DLK-110, "
DTC Logic".
 Passenger side: Refer to DLK-112, "
DTC Logic".
 Back door: Refer to DLK-114, "
DTC Logic".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace the malfunctioning parts.
6.CHECK BACK DOOR SWITCH
Check back door switch.
Refer to DLK-120, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace the malfunctioning parts.
7.REPLACE BCM
Revision: 2010 May2011 QX56

DOOR DOES NOT LOCK/UNLOCK WITH DOOR REQUEST SWITCH
DLK-173
< SYMPTOM DIAGNOSIS >
C
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M A
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DLK
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 Replace BCM. Refer to BCS-81, "Removal and Installation".
 Confirm the operation after replacement.
Is the result normal?
YES >> INSPECTION END
NO >> Check intermittent incident. Refer to GI-40, "
Intermittent Incident".
DRIVER SIDE DOOR REQUEST SWITCH
DRIVER SIDE DOOR REQUEST SWITCH : DescriptionINFOID:0000000006226007
All doors do not lock/unlock using driver side door request switch.
DRIVER SIDE DOOR REQUEST SW ITCH : Diagnosis ProcedureINFOID:0000000006226008
1.CHECK DOOR REQUEST SWITCH
Check front door request switch (driver side).
Refer to DLK-137, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.REPLACE BCM
 Replace BCM. Refer to BCS-81, "
Removal and Installation".
 Confirm the operation after replacement.
Is the result normal?
YES >> INSPECTION END
NO >> Check intermittent incident. Refer to GI-40, "
Intermittent Incident".
PASSENGER SIDE DOOR REQUEST SWITCH
PASSENGER SIDE DOOR REQUEST SWITCH : DescriptionINFOID:0000000006226009
All doors do not lock/unlock using passenger side door request switch.
PASSENGER SIDE DOOR REQUEST SWITCH : Diagnosis ProcedureINFOID:0000000006226010
1.CHECK DOOR REQUEST SWITCH
Check front door request switch (passenger side).
Refer to DLK-137, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.REPLACE BCM
 Replace BCM. Refer to BCS-81, "
Removal and Installation".
 Confirm the operation after replacement.
Is the result normal?
YES >> INSPECTION END
NO >> Check intermittent incident. Refer to GI-40, "
Intermittent Incident".
BACK DOOR REQUEST SWITCH
BACK DOOR REQUEST SWITCH : DescriptionINFOID:0000000006226011
All doors do not lock/unlock using back door request switch.
BACK DOOR REQUEST SWITCH : Diagnosis ProcedureINFOID:0000000006226012
1.CHECK BACK DOOR REQUEST SWITCH
Check back door request switch.
Revision: 2010 May2011 QX56