2008 INFINITI QX56 battery volt

ADP-50
< COMPONENT DIAGNOSIS >
LIFTING SWITCH (FRONT)
LIFTING SWITCH (FRONT)
DescriptionINFOID:0000000001735475
Lifting switch (front) is equipped to the power seat switch LH on the seat cushion side surface. The operation
signal is input to the driver seat control unit when the lifting switch (front) is operated.
Component Function CheckINFOID:0000000001735476
1. CHECK FUNCTION
1. Select “LIFT FR SW-UP”, “LIFT FR SW-DN” in “DATA MONITOR” mode with CONSULT-III.
2. Check lifting switch (front) signal under the following conditions.
Is the indication normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-50, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735477
1. CHECK LIFTING SWITCH SIGNAL
1. Turn ignition switch ON.
2. Check voltage between driver seat control unit harness connec- tor and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> GO TO 2
2. CHECK LIFTING SW ITCH (FRONT) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and power seat switch LH.
3. Check continuity between driver seat control unit harness con- nector and power seat switch LH harness connector.
Monitor item ConditionStatus
LIFT FR SW-UP Lifting switch front (up) Operate
ON
Release OFF
LIFT FR SW-DN Lifting switch front (down) Operate
ON
Release OFF
Driver seat
control unit
connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
B202 13
Ground Lifting
switch (front) Operate
(down) 0V
Release Battery
voltage
28 Operate (up) 0V
Release Battery
voltage
PIIA4583E
Driver seat control unit connector Te r m i n a lPower seat switch
LH connector Terminal Continuity
B202 13
B208 5
Ye s
28 6
LIIA1129E
Revision: March 2010 2008 QX56

LIFTING SWITCH (FRONT)ADP-51
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
4. Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DRIVER SEAT CONTROL UNIT OUTPUT
1. Connect the driver seat control unit.
2. Turn ignition switch ON.
3. Check voltage between driver s eat control unit harness connec-
tor and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace driver seat control unit.
4. CHECK LIFTING SWITCH (FRONT)
Refer to ADP-51, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5
NO >> Replace power seat switch LH.
5. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> Repair or replace the malfunctioning part.
Component InspectionINFOID:0000000001735478
1. CHECK LIFTING SWITCH (FRONT)
1. Turn ignition switch OFF.
2. Disconnect power seat switch LH.
3. Check continuity between power seat switch LH terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace power seat switch LH.
Driver seat control unit connector Terminal
GroundContinuity
B202 13
No
28
Driver seat control unit
connector Te r m i n a l s
Voltage (V)
(Approx.)
(+) (–)
B202 13
Ground Battery voltage
28
PIIA4583E
Te r m i n a l Condition Continuity
Power seat switch LH
3 5 Lifting switch front (down)
Operate
Yes
Release No
6 Lifting switch front (up) Operate
Yes
Release No
LIIA1130E
Revision: March 2010 2008 QX56

ADP-52
< COMPONENT DIAGNOSIS >
LIFTING SWITCH (REAR)
LIFTING SWITCH (REAR)
DescriptionINFOID:0000000001735479
Lifting switch (rear) is equipped to the power seat switch LH on the seat cushion side surface. The operation
signal is inputted to the driver seat control unit when the lifting switch (rear) is operated.
Component Function CheckINFOID:0000000001735480
1. CHECK FUNCTION
1. Select “LIFT RR SW-UP”, “LIFT RR SW-DN” in “Data monitor” mode with CONSULT-III.
2. Check lifting switch (rear) signal under the following conditions.
Is the indication normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-52, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735481
1. CHECK LIFTING SWITCH (REAR) SIGNAL
1. Turn ignition switch ON.
2. Check voltage between driver seat control unit harness connec- tor and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> GO TO 2
2. CHECK LIFTING SW ITCH (REAR) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and power seat switch LH.
3. Check continuity between driver seat control unit harness con- nector and power seat switch LH harness connector.
4. Check continuity between driver seat control unit harness con- nector and ground.
Monitor item ConditionStatus
LIFT RR SW-UP Lifting switch rear (up) Operate
ON
Release OFF
LIFT RR SW-DN Lifting switch rear (down) Operate
ON
Release OFF
Driver seat
control unit
connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
B202 14
Ground Lifting
switch (rear) Operate (down) 0
Release Battery voltage
29 Operate (up) 0
Release Battery voltage
PIIA4586E
Driver seat control unit connector Te r m i n a lPower sear switch
LH connector Terminal Continuity
B202 14
B208 8
Ye s
29 2
LIIA1131E
Revision: March 2010 2008 QX56

LIFTING SWITCH (REAR)ADP-53
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DRIVER SEAT CONTROL UNIT OUTPUT
1. Connect the driver seat control unit.
2. Turn ignition switch ON.
3. Check voltage between driver s eat control unit harness connec-
tor and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace driver seat control unit.
4. CHECK LIFTING SWITCH (REAR)
Refer to ADP-53, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5
NO >> Replace power seat switch LH.
5. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> Repair or replace the malfunctioning part.
Component InspectionINFOID:0000000001735482
1. CHECK LIFTING SWITCH (REAR)
1. Turn ignition switch OFF.
2. Disconnect power seat switch LH.
3. Check continuity between power seat switch LH terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace power seat switch LH.
Driver seat control unit connector Te r m i n a l
GroundContinuity
B202 14
No
29
Driver seat control unit
connector Te r m i n a l s
Voltage (V)
(Approx.)
(+) (–)
B202 14
Ground Battery voltage
29
PIIA4586E
Te r m i n a l Condition Continuity
Power seat switch LH
3 2 Lifting switch rear (up)
Operate Yes
Release No
8 Lifting switch rear (down) Operate Yes
Release No
LIIA1132E
Revision: March 2010
2008 QX56

ADP-56
< COMPONENT DIAGNOSIS >
PEDAL ADJUSTING SWITCH
PEDAL ADJUSTING SWITCH
DescriptionINFOID:0000000001735483
Pedal adjusting switch is on the instrument panel. The operation signal is input to the driver seat control unit
when the pedal adjusting switch is operated. The pedal adjus ting switch signal is sent to the automatic drive
positioner control unit via UART communication.
Component Function CheckINFOID:0000000001735484
1. CHECK FUNCTION
1. Select “PEDAL SW-FR”, “PEDAL SW-RR” in “Data monitor” mode with CONSULT-III.
2. Check pedal adjusting switch signal under the following conditions.
Is the indication normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-56, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735485
1. CHECK PEDAL ADJUSTING SWITCH SIGNAL
1. Turn ignition switch ON.
2. Check voltage between driver seat control unit harness connec- tor and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> GO TO 2
2. CHECK PEDAL ADJUSTING SWITCH CIRCUIT
Monitor item ConditionStatus
PEDAL SW-FR Pedal adjusting switch (forward) Operate
ON
Release OFF
PEDAL SW-RR Pedal adjusting switch (backward) Operate
ON
Release OFF
Driver seat
control unit connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
B202 15
Ground Pedal ad-
justing switch Operate
(backward) 0
Release Battery
voltage
30 Operate
(forward) 0
Release Battery
voltage
PIIA4591E
Revision: March 2010 2008 QX56

PEDAL ADJUSTING SWITCHADP-57
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and pedal adjusting switch.
3. Check continuity between driver seat control unit harness con- nector and pedal adjusting switch harness connector.
4. 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 DRIVER SEAT CONTROL UNIT OUTPUT
1. Connect the driver seat control unit.
2. Turn ignition switch ON.
3. Check voltage between driver s eat control unit harness connec-
tor and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace driver seat control unit.
4. CHECK PEDAL ADJUSTING SWITCH
Refer to ADP-58, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5
NO >> Replace pedal adjusting switch.
5. CHECK PEDAL ADJUSTING SWITCH GROUND CIRCUIT
Check continuity between pedal adjusting switch connector M96 ter-
minal 1 and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> Replace or replace harness.
6. CHECK INTERMITTENT INCIDENT
Driver seat
control unit
connector Te r m i n a l
Pedal adjusting
switch connector Terminal Continuity
B202 15
M96 2
Ye s
30 3
Driver seat control unit connector Te r m i n a l
GroundContinuity
B202 15
No
30
LIIA0726E
Driver seat control unit
connector Te r m i n a l s
Voltage (V)
(Approx.)
(+) (–)
B202 15
Ground Battery voltage
30
PIIA4591E
1 - Ground : Continuity should exist.
LIIA1015E
Revision: March 2010 2008 QX56

DETENTION SWITCHADP-67
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
DETENTION SWITCH
DescriptionINFOID:0000000001735500
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:0000000001735501
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-67, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735502
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: March 2010
2008 QX56

SLIDING MOTORADP-87
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
SLIDING MOTOR
DescriptionINFOID:0000000001735528
• The sliding motor LH is installed to the seat cushion frame.
• The sliding motor LH is installed with the driver seat control unit.
• The seat is slid forward/backward by changing the rotation direction of sliding motor LH.
Component Function CheckINFOID:0000000001735529
1. CHECK FUNCTION
1. Select “SEAT SLIDE” in “Active test” mode with CONSULT-III.
2. Check the sliding motor LH operation.
Is the operation of relevant parts normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-87, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735530
1. CHECK SLIDING MOTOR LH POWER SUPPLY
1. Turn the ignition switch ACC.
2. Perform “Active test” (“SEA T SLIDE”) with CONSULT-lll
3. Check voltage between driver s eat control unit harness connec-
tor and ground.
Is the inspection result normal?
YES >> Replace sliding motor LH. (Built in seat slide cushion frame.)
NO >> GO TO 2
2. CHECK SLIDING MOTOR LH CIRCUIT
Test Item Description
SEAT SLIDE OFF
Seat sliding Stop
FR Forward
RR Backward
Te r m i n a l
Test ItemVoltage (V)
(Approx.)
(+)
(-)
Driver seat
control unit connector Te r m i n a l
B203 35
Ground SEAT
SLIDE OFF
0
FR (forward) Battery voltage
RR (backward) 0
42 OFF
0
FR (forward) 0
RR (backward) Battery voltage
PIIA4801E
Revision: March 2010 2008 QX56