INFINITI QX56 2010 Factory Owners Manual

DETENTION SWITCHADP-77
< COMPONENT DIAGNOSIS >
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M A
B
ADP
N
O P
DETENTION SWITCH
DescriptionINFOID:0000000005147519
Park position switch is installed on A/T shift selector. It is turned OFF when the A/T selector lever is in P posi-
tion. The driver seat control unit judges that the A/T selector lever is in P position if cont\
inuity does not exist in
this circuit.
Component Function CheckINFOID:0000000005147520
1. CHECK FUNCTION
1. Select “DETENT SW” signal in “Data monitor” mode with CONSULT-III.
2. Check park position switch signal under the following conditions.
Is the indication normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-77, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147521
Regarding Wiring Diagram information, refer to ADP-119, "Wiring Diagram".
1. CHECK DTC WITH “BCM”
Check “Self Diagnostic Result” for BCM with CONSULT-lll.
Is any other DTC detected?
YES >> Check the DTC.
NO >> GO TO 2
2. CHECK PARK POSITION SWITCH INPUT SIGNAL
1. Turn ignition switch ON.
2. Mechanical key must be removed from the key switch.
3. Check voltage between driver seat control unit harness connec- tor and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 3
3. CHECK PARK POSITION SWITCH CIRCUIT
Monitor item ConditionStatus
DETENT SW A/T selector lever P position
OFF
Other than
above ON
Driver seat
control unit connector Te r m i n a l
ConditionVoltage (V)
(Approx.)
(+) (-)
B202 21 Ground A/T selec-
tor leverP position
Battery volt-
age
Other than
above 0V
ALJIA0193ZZ
Revision: April 20092010 QX56

ADP-78
< COMPONENT DIAGNOSIS >
DETENTION SWITCH
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and A/T shift selector.
3. Check continuity between driver seat control unit harness con-nector (A) and A/T shift selector harness connector (B).
4. Check continuity between driver seat control unit harness con- nector (A) and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace driver seat control unit. Refer to ADP-174, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
AB Continuity
Connector Terminal Connector Terminal
B202 21 M203 6 Yes
A GroundContinuity
Connector Terminal
B202 21 No
ALJIA0194ZZ
Revision: April 20092010 QX56

FRONT DOOR SWITCH (DRIVER SIDE)ADP-79
< COMPONENT DIAGNOSIS >
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ADP
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FRONT DOOR SWITCH (DRIVER SIDE)
DescriptionINFOID:0000000005147522
Detects front door LH open/close condition.
Component Function CheckINFOID:0000000005147523
1. CHECK FUNCTION
1. Select “DOOR SW-DR” in “Dat a monitor” mode with CONSULT-III.
2. Check the front door switch LH signal under the following conditions.
Is the inspection result normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-79, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005147524
Regarding Wiring Diagram information, refer to ADP-119, "Wiring Diagram".
1. CHECK FRONT DOOR SWITCH LH CIRCUIT
1. Disconnect BCM and front door switch LH.
2. Check continuity between BCM connector and front door switch LH connector.
3. Check continuity between BCM connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK FRONT DOOR SWITCH LH
Refer to ADP-80, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 3
NO >> Replace front door switch LH.
3. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-59, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Monitor item ConditionStatus
DOOR SW-DR Front door switch LH Open
ON
Close OFF
BCM connector TerminalFront door switch
LH connector Terminal Continuity
M19 47B8 2Yes
BCM connector Terminal GroundContinuity
M19 47 No
LIIA1027E
Revision: April 20092010 QX56

ADP-80
< COMPONENT DIAGNOSIS >
FRONT DOOR SWITCH (DRIVER SIDE)
Component Inspection
INFOID:0000000005147525
1. CHECK FRONT DOOR SWITCH LH
1. Turn ignition switch OFF.
2. Disconnect front door switch LH.
3. Check continuity between front door switch LH terminals.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace front door switch LH.
Te r m i n a l Condition Continuity
Front door switch LH
2 Ground part of
door switch Front door switch
LH Pushed No
Released Yes
LIIA2377E
Revision: April 20092010 QX56

SLIDING SENSORADP-81
< COMPONENT DIAGNOSIS >
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M A
B
ADP
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SLIDING SENSOR
DescriptionINFOID:0000000005147526
• The sliding sensor is installed to the power seat frame assembly.
• The pulse signal is input to the driver seat control unit when sliding is performed.
• The driver seat control unit counts the pulse and calculates the sliding amount of the seat.
Component Function CheckINFOID:0000000005147527
1. CHECK FUNCTION
1. Select “SLIDE PULSE” in “Data monitor” mode with CONSULT-III.
2. Check sliding sensor signal under the following conditions.
Is the indication normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-81, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147528
Regarding Wiring Diagram information, refer to ADP-119, "Wiring Diagram".
1. CHECK SLIDING SENSOR SIGNAL
1. Turn ignition switch OFF.
2. Read voltage signal between driver seat control unit harness connector and ground with osiloscope.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2. CHECK SLIDING SENSOR CIRCUITS
Monitor item Condition Valve
SLIDE PULSE Seat slidingOperate (forward)
Change (increase)
Operate (backward) Change (decrease)
Release No change
Te r m i n a l s
ConditionVoltage signal
(+)
(–)
Driver’s
seat
control unit Te r m i -
nal
B202 24 Ground Seat
slidingOperate
Other
than
above
0 or 5
PIIA4556E
PIIA3277E
Revision: April 20092010 QX56

ADP-82
< COMPONENT DIAGNOSIS >
SLIDING SENSOR
1. Disconnect driver seat control unit and sliding motor LH.
2. Check continuity between driver seat control unit harness con-nector and sliding motor LH harness connector.
3. Check continuity between driver seat control unit harness con- nector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK SEAT OPERATION
1. Connect driver seat control unit and sliding motor LH.
2. Check seat operation (except sliding operation) with memory function.
Is the inspection result normal?
YES >> Replace sliding motor LH. (Built in power seat frame assembly). Refer to SE-69, "Disassembly
and Assembly".
NO >> Replace driver seat control unit. Refer to ADP-174, "
Removal and Installation".
4. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace driver seat control unit. Refer to ADP-174, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a l
Sliding motor
LH connector Terminal Continuity
B202 (A) 16
B204 (B) 3
Ye s
24 4
31 2
Driver seat control unit connector Te r m i n a l
GroundContinuity
B202 (A) 16
No
24
31
ALJIA0317ZZ
Revision: April 20092010 QX56

RECLINING SENSORADP-83
< COMPONENT DIAGNOSIS >
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RECLINING SENSOR
DescriptionINFOID:0000000005147529
• The reclining motor is installed to the seatback assembly.
• The pulse signal is inputted to the driver seat control unit when the reclining is operated.
• The driver seat control unit counts the pulse and calculates the reclining amount of the seat.
Component Function CheckINFOID:0000000005147530
1. CHECK FUNCTION
1. Select “RECLN PULSE” in “Data monitor” mode with CONSULT-III.
2. Check reclining sensor signal under the following conditions.
Is the indication normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-83, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147531
Regarding Wiring Diagram information, refer to ADP-119, "Wiring Diagram".
1. CHECK RECLINING SENSOR SIGNAL
1. Turn ignition switch OFF.
2. Read voltage signal between driver seat control unit harness connector and ground with oscilloscope.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2. CHECK RECLINING SENSOR CIRCUIT
Monitor item Condition Value
RECLN PULSE Seat recliningOperate (forward)
Change (increase)
Operate (backward) Change (decrease)
Release No change
Te r m i n a l s
Condition Voltage signal
(+)
(–)
Driver
seat con-
trol unit Te r m i -
nal
B202 9 Ground Seat
reclin-
ingOperate
Other
than
above
0 or 5
PIIA4559E
SIIA0692J
Revision: April 20092010 QX56

ADP-84
< COMPONENT DIAGNOSIS >
RECLINING SENSOR
1. Disconnect driver seat control unit and reclining motor LH.
2. Check continuity between driver seat control unit harness con-nector and reclining motor LH harness connector.
3. Check continuity between driver seat control unit harness con- nector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK SEAT OPERATION
1. Connect driver seat control unit and reclining motor LH.
2. Check seat operation (except reclining operation) with memory function.
Is the operation normal?
YES >> Replace reclining motor LH. (Built in seatback assembly). Refer to SE-69, "Disassembly and
Assembly".
NO >> Replace driver seat control unit. Refer to ADP-174, "
Removal and Installation".
4. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace driver seat control unit. Refer to ADP-174, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a l
Reclining motor
connector Terminal Continuity
B202 (A) 9
B205 (B) 1
Ye s
31 4
Driver seat control unit connector Te r m i n a l
GroundContinuity
B202 (A) 9
No
31
ALJIA0318ZZ
Revision: April 20092010 QX56

LIFTING SENSOR (FRONT)ADP-85
< COMPONENT DIAGNOSIS >
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M A
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ADP
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LIFTING SENSOR (FRONT)
DescriptionINFOID:0000000005147532
• The lifting sensor (front) is installed to the power seat frame assembly.
• The pulse signal is input to the driver seat control unit when the lifting (front) is operated.
• The driver seat control unit counts the pulse and ca lculates the lifting (front) amount of the seat.
Component Function CheckINFOID:0000000005147533
1.CHECK FUNCTION
1. Select “LIFT FR PULSE” in “Data monitor” mode with CONSULT-III.
2. Check the lifting sensor (front) signal under the following conditions.
Is the indication normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-85, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147534
Regarding Wiring Diagram information, refer to ADP-119, "Wiring Diagram".
1. CHECK LIFTING SENSOR (FRONT) SIGNAL
1. Turn ignition switch OFF.
2. Read the voltage signal between driver seat control unit harness connector and ground with an oscilloscope.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2. CHECK LIFTING SENSOR (FRONT) CIRCUIT
Monitor item Condition Value
LIFT FR PULSE Seat lifting (front)Operate (up)
Change (increase)
Operate (down) Change (decrease)
Release No change
Te r m i n a l s
ConditionVoltage signal
(+)
(–)
Driver
seat con- trol unit
connector Te r m i -
nal
B202 25 Ground Seat
lifting
(front)Oper-
ate
Other
than
above
0 or 5
PIIA4561E
SIIA0691J
Revision: April 20092010 QX56

ADP-86
< COMPONENT DIAGNOSIS >
LIFTING SENSOR (FRONT)
1. Disconnect driver seat control unit and lifting motor (front).
2. Check continuity between driver seat control unit harness con-nector and lifting motor (front) harness connector.
3. Check continuity between driver seat control unit harness con- nector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK SEAT OPERATION
1. Connect driver seat control unit and lifting motor (front).
2. Check seat operation [except lifting (front) operation] with memory function.
Is the operation normal?
YES >> Replace lifting motor (front). (Built in power seat frame assembly). Refer to SE-69, "Disassembly
and Assembly".
NO >> Replace driver seat control unit. Refer to ADP-174, "
Removal and Installation".
4. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace driver seat control unit. Refer to ADP-174, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a lLifting motor
(front) connector Terminal Continuity
B202 (A) 16
B206 (B) 3
Ye s
25 4
31 2
Driver seat control unit connector Te r m i n a l
Ground Continuity
B202 (A) 16
No
25
31
ALJIA0319ZZ
Revision: April 20092010 QX56