air condition INFINITI QX56 2007 Factory Service Manual

AUTOMATIC DRIVE POSITIONER
SE-31
< SERVICE INFORMATION >
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It is possible to set sliding front seat for entry/exit of vehicle by pressing set switch.
*: Setting of sliding front seat for entry/exit of vehicle is ON at factory-shipment. But if custom settings are reset, setting turns OFF.
NOTE:
After the setting is registered, the new setting is effective, even if the battery is disconnected.
BCM Power Supply and Ground Circuit InspectionINFOID:0000000003533168
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection".
Power Supply and Ground Circuit InspectionINFOID:0000000003533169
1.CHECK DRIVER SEAT CONTROL UNIT FUSES AND FUSIBLE LINK
Make sure any of the following fuses in the driver seat control unit and automatic drive positioner control unit
are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK DRIVER SEAT CONTROL UNIT POWER SUPPLY CIRCUIT
1. Disconnect driver seat control unit.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK DRIVER SEAT CONTROL UNIT GROUND CIRCUIT
Content Setting change operation Indicator LEDs
The seat sliding and steering
wheel raise turnout and return
at entry/exit can be operated.
Press the set switch for more than 10 secondsBlinking twice
The seat sliding and steering
wheel raise turnout and return
at entry/exit can be not operat-
ed.Blinking once
Unit Power source Fuse No.
Driver seat control unit START power supply 2 (10A)
Driver seat control unit and automatic
drive positionercontrol unitBattery power supply 22 (15A)
Battery power supplyf (50A)
ConnectorTe r m i n a l s
Power
sourceConditionVoltage (V)
(Approx.)
(+) (-)
P333 GroundBattery
power
supplyIgnition
switch
OFFBattery
voltage
40 GroundBattery
power
supplyIgnition
switch
OFFBattery
voltage
P2 6 GroundSTART
power
supplyIgnition
switch
STARTBattery
voltage
PIIA4819E

SE-32
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
1. Turn ignition switch OFF.
2. Check continuity between the driver seat control unit connector
P2 terminal 32, P3 terminal 48 and ground.
OK or NG
OK >> Driver seat control unit circuit check is OK. Check the
automatic drive positioner control unit. GO TO 4.
NG >> Repair or replace harness.
4.CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT POWER SUPPLY CIRCUIT
1. Disconnect automatic drive positioner control unit.
2. Check voltage between automatic drive positioner control unit
connector M34 terminals 34, 39 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT GROUND CIRCUIT
Check continuity between the automatic drive positioner control unit
connector M34 terminals 40, 48 and ground.
OK or NG
OK >> Automatic drive positioner control unit circuit is OK.
NG >> Repair or replace harness.
CONSULT-II Function (AUTO DRIVE POS.)INFOID:0000000003533170
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following. 32 - Ground : Continuity should exist.
48 - Ground : Continuity should exist.
PIIA4542E
ConnectorTe r m i n a l s
Power
sourceConditionVoltage (V)
(Approx.)
(+) (-)
M3434 GroundBattery
power
supplyIgnition
switch
OFFBattery
voltage
39 GroundBattery
power
supplyIgnition
switch
OFFBattery
voltage
PIIA4543E
40 - Ground : Continuity should exist.
48 - Ground : Continuity should exist.
PIIA4544E
AUTO DRIVE POS.
diagnostic modeDescription
WORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the driver seat
control unit for setting the status suitable for required operation, input/output signals
are received from the driver seat control unit and received data is displayed.
SELF-DIAG RESULTS Displays driver seat control unit self-diagnosis results.
DATA MONITOR Displays driver seat control unit input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
ECU PART NUMBER Driver seat control unit part number can be read.

SE-38
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
1. Connect the driver seat control unit and sliding motor LH.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace sliding motor. Refer to SE-83.
NG >> Replace driver seat control unit. Refer to SE-83
.
Reclining Motor LH Circuit InspectionINFOID:0000000003533174
1.CHECK SEAT RECLINING MECHANISM
Check the following.
• Operation malfunction caused by an interference with the center pillar or center console
• Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning part and check again.
2.CHECK FUNCTION
With CONSULT-II
Check operation with “SEAT RECLINING” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Reclining motor LH circuit is OK.
NG >> GO TO 3.
3.CHECK RECLINING MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and reclining motor LH.
3. Check continuity between driver seat control unit connector P3
terminals 36, 44 and reclining motor LH connector P5 terminals
3, 4.
4. Check continuity between driver seat control unit connector P3
terminals 36, 44 and ground.
OK or NG
ConnectorTe r m i n a l s
ConditionVoltage (V) (Ap-
prox.)
(+) (-)
P335
GroundSliding switch ON
(FORWARD operation)Battery voltage
Other than above 0
42Sliding switch ON
(BACKWARD operation)Battery voltage
Other than above 0
PIIA4801E
Test item Description
SEAT RECLININGThe reclining motor LH is activated by receiving the drive
signal.
PIIA0268E
36 - 4 : Continuity should exist.
44 - 3 : Continuity should exist.
36 - Ground : Continuity should not exist.
44 - Ground : Continuity should not exist.
LIIA0697E

AUTOMATIC DRIVE POSITIONER
SE-39
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OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit and reclining motor LH.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace reclining motor LH. Refer to SE-83.
NG >> Replace driver seat control unit. Refer to SE-83
.
Lifting Motor (Front) Circuit InspectionINFOID:0000000003533175
1.CHECK FRONT END SEAT LIFTING MECHANISM
Check the following.
• Operation malfunction caused by lifter mechanism deformation, pinched harness or other foreign materials
• Operation malfunction caused by foreign materials adhered to the lifting motor (front) or lead screws
• Operation malfunction and interference with other parts by installation
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning part and check again.
2.CHECK FUNCTION
With CONSULT-II
Check operation with “SEAT LIFTER FR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Lifting motor (front) circuit is OK.
NG >> GO TO 3.
3.CHECK LIFTING MOTOR (FRONT) CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and lifting motor (front).
3. Check continuity between driver seat control unit connector P3
terminals 37, 45 and lifting motor (front) connector P6 terminals
4, 6.
4. Check continuity between driver seat control unit connector P3
terminals 37, 45 and ground.
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
P336
GroundReclining switch ON
(FORWARD operation)Battery voltage
Other than above 0
44Reclining switch ON
(BACKWARD operation)Battery voltage
Other than above 0
PIIA4802E
Test item Description
SEAT LIFTER FRThe lifting motor (front) is activated by receiving the drive sig-
nal.
PIIA0271E
37 - 6 : Continuity should exist.
45 - 4 : Continuity should exist.
LIIA0698E

SE-40
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit and lifting motor (front).
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace lifting motor (front). Refer to SE-83.
NG >> Replace driver seat control unit. Refer to SE-83
.
Lifting Motor (Rear) Circuit InspectionINFOID:0000000003533176
1.CHECK REAR SEAT LIFTING MECHANISM
Check the following.
• Operation malfunction caused by lifter mechanism deformation or pinched harness or other foreign materials
• Operation malfunction caused by foreign materials adhered to the lifting motor (rear) or lead screws
• Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning part and check again.
2.CHECK FUNCTION
With CONSULT-II
Check operation with “SEAT LIFTER RR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Lifting motor (rear) circuit is OK.
NG >> GO TO 3.
3.CHECK LIFTING MOTOR (REAR) CIRCUIT HARNESS CONTINUITY 37 - Ground : Continuity should not exist.
45 - Ground : Continuity should not exist.
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
P337
GroundLifting switch (front) ON
(DOWN operation)Battery voltage
Other than above 0
45Llifting switch (front) ON
(UP operation)Battery voltage
Other than above 0
PIIA4805E
Test item Description
SEAT LIFTER RRThe lifting motor (rear) is activated by receiving the drive
signal.
PIIA0274E

AUTOMATIC DRIVE POSITIONER
SE-41
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1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and lifting motor (rear).
3. Check continuity between driver seat control unit connector P3
terminals 38, 39 and lifting motor (rear) connector P7 terminals
4, 6.
4. Check continuity between driver seat control unit P3 terminals
38, 39 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit and lifting motor (rear).
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace lifting motor (rear). Refer to SE-83.
NG >> Replace driver seat control unit. Refer to SE-83
.
Pedal Adjusting Motor Circuit InspectionINFOID:0000000003533177
1.CHECK PEDAL ADJUSTING MECHANISM
Check the following.
• Operation malfunction caused by pedal adjusting mechanism deformation or pinched harness or other for-
eign materials
• Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning part and check again.
2.CHECK FUNCTION
With CONSULT-II38 - 6 : Continuity should exist.
39 - 4 : Continuity should exist.
38 - Ground : Continuity should not exist.
39 - Ground : Continuity should not exist.
LIIA0699E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
P338
GroundLifting switch (rear) ON
(UP operation)Battery voltage
Other than above 0
39Lifting switch (rear) ON
(DOWN operation)Battery voltage
Other than above 0
PIIA4804E

SE-42
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
Check operation with “ADJ PEDAL MOTOR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Pedal adjusting motor circuit is OK.
NG >> GO TO 3.
3.CHECK PEDAL ADJUSTING MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and pedal
adjusting motor.
3. Check continuity between automatic drive positioner control unit
connector M34 terminals 37, 45 and pedal adjusting motor con-
nector E109 terminals 1, 2.
4. Check continuity between automatic drive positioner control unit
connector M34 terminals 37, 45 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit and pedal
adjusting motor.
2. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Replace pedal adjusting motor.
NG >> Replace automatic drive positioner control unit.
Mirror Motor LH Circuit InspectionINFOID:0000000003533178
1.CHECK DOOR MIRROR LH MECHANISM
Check the following items.
Test item Description
ADJ PEDAL MOTORThe pedal adjusting motor is activated by receiving the
drive signal.
PIIA4555E
37 - 1 : Continuity should exist.
45 - 2 : Continuity should exist.
37 - Ground : Continuity should not exist.
45 - Ground : Continuity should not exist.
LIIA1755E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M3437
GroundPedal adjusting switch
ON
(FORWARD operation)Battery voltage
Other than above 0
45Pedal adjusting switch
ON
(BACKWARD opera-
tion)Battery voltage
Other than above 0
PIIA4806E

SE-44
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
OK or NG
OK >> Replace door mirror LH. Refer to GW-84, "Door Mirror Assembly".
NG >> Repair or replace harness.
Mirror Motor RH Circuit InspectionINFOID:0000000003533179
1.CHECK DOOR MIRROR RH MECHANISM
Check the following items.
Operation malfunction caused by a foreign object caught in door mirror face edge.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning parts, and check the symptom again.
2.CHECK FUNCTION
With CONSULT-II
Check the operation with “MIRROR MOTOR RH” in the ACTIVE
TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Mirror motor RH circuit is OK.
NG >> GO TO 3.
3.CHECK DOOR MIRROR RH CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and door mir-
ror RH.
3. Check continuity between automatic drive positioner control unit
connector M33 terminals 14, 15, 30 and door mirror RH connec-
tor D107 terminals 1, 2, 3.
4. Check continuity between automatic drive positioner control unit
connector M33 terminal 14, 15, 30 and ground.
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
D41
GroundWhen motor is
operated UP1.5 - Battery voltage
Other than above 0
2When motor is
operated LEFT1.5 - Battery voltage
Other than above 0
3 When motor is
operated DOWN or RIGHT1.5 - Battery voltage
Other than above 0
Test item Description
MIRROR MOTOR RHThe mirror motor RH moves the mirror UP/DOWN and
LEFT/RIGHT by receiving the drive signal.
PIIA0202E
14 - 1 : Continuity should exist.
15 - 2 : Continuity should exist.
30 - 3 : Continuity should exist.
LIIA1001E

AUTOMATIC DRIVE POSITIONER
SE-45
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OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK MIRROR MOTOR SIGNAL
1. Connect automatic drive positioner control unit and door mirror
RH.
2. Turn ignition switch to ACC.
3. Check voltage between door mirror RH connector and ground.
OK or NG
OK >> Replace door mirror motor RH. Refer to GW-84, "Door Mirror Assembly".
NG >> Repair or replace harness.
Steering Wheel Tilt Circuit InspectionINFOID:0000000003533180
1.CHECK STEERING WHEEL TILT MECHANISM
Check the following.
• Operation malfunction caused by pedal adjusting mechanism deformation or pinched harness or other for-
eign materials
• Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning part and check again.
2.CHECK FUNCTION
With CONSULT-II
Check operation with “TILT MOTOR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Steering wheel tilt motor circuit is OK.
NG >> GO TO 3.
3.CHECK STEERING WHEEL TILT MOTOR HARNESS CONTINUITY 14 - Ground : Continuity should not exist.
15 - Ground : Continuity should not exist.
30 - Ground : Continuity should not exist.
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
D1071
GroundMirror motor is operated
UP1.5 - Battery
voltage
Other than above 0
2Mirror motor is operated
LEFT1.5 - Battery
voltage
Other than above 0
3Mirror motor is operated
DOWN or RIGHT1.5 - Battery
voltage
Other than above 0
LIIA1002E
Test item Description
TILT MOTOR The pedal adjust motor is activated by receiving the drive signal.
PIIA0280E

SE-46
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and steering
wheel tilt motor.
3. Check continuity between automatic drive positioner control unit
connector M34 terminals 35, 42 and steering wheel tilt motor
connector M68 terminals 1, 5.
4. Check continuity between automatic drive positioner control unit
connector M34 terminals 35, 42 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit connector
and steering wheel tilt motor.
2. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Replace steering wheel tilt motor. Refer to PS-9, "Removal and Installation".
NG >> Replace automatic drive positioner control unit.
Sliding Sensor Circuit InspectionINFOID:0000000003533181
1.CHECK FUNCTION
With CONSULT-II
Check operation with “SLIDE PULSE” on the DATA MONITOR to
make sure the pulse changes.
Without CONSULT-II35 - 1 : Continuity should exist.
42 - 5 : Continuity should exist.
35 - Ground : Continuity should not exist.
42 - Ground : Continuity should not exist.
LIIA1431E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M3435
GroundTilt switch ON
(UP operation)Battery voltage
Other than above 0
42Tilt switch ON
(DOWN operation)Battery voltage
Other than above 0
LIIA0482E
Monitor item [OPERATION or UNIT] Contents
SLIDE PULSE —The seat sliding position (pulse) judged from
the sliding sensor signal is displayed
PIIA4558E