air condition INFINITI FX35 2004 Service Manual

SE-8
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger room.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.

SE-34
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
Work Flow AIS002XJ
1. Check the symptom and customer's requests.
2. Understand the system description. Refer to SE-11, "
System Description" .
3. Perform the preliminary check, refer to SE-35, "
Preliminary Check" .
4. Perform the CAN communication inspection using CONSULT-II, refer to SE-38, "
CONSULT-II Function"
5. Perform the self-diagnosis. Refer to SE-42, "Can Communication Inspection Using CONSULT-II (Self-
diagnosis)" .
6. Repair or replace depending on the self-diagnostic results.
26 L/P Front lifting switch UP signalON (front lifting switch turned to upward) 0
OFF Battery voltage
27 L Rear lifting switch UP signalON (rear lifting switch turned to upward) 0
OFF Battery voltage
28C B/W Sensor ground Ignition switch ON 0
29 G/L Reclining sensorON (reclining motor operation)
Other than above 0 or 5
30 G/W Rear lifting sensorON (rear lifting motor operation)
Other than above 0 or 5
34 L/W Set switch signalSet witch ON 0
Set witch OFF 5
35 L/BPower seat memory switch
2 signalMemory switch 2 ON 0
Memory switch 2 OFF 5
36 Y/GPower seat memory switch
indictor 2 signalMemory switch 2 ON 1
Memory switch 2 OFF Battery voltage
37 L/PSeat sliding switch back-
ward signalON (seat sliding switch turned to back-
ward)0
OFF Battery voltage
38 LG/BSeat reclining switch back-
ward signalON (seat reclining switch turned to
backward)0
OFF Battery voltage
39 L/GFront lifting switch DOWN
signalON (front lifting switch turned to down-
ward)0
OFF Battery voltage
40 L/YRear lifting switch DOWN
signalRear lifting switch turned to downward) 0
OFF Battery voltage
61E B/Y Ground (signal) Ignition switch ON 0 TERMI-
NAL WIRE
COLORITEM CONDITIONVOLTAGE (V)
(Approx.)
SIIA0692J
SIIA0693J

SE-36
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
2. CHECK POWER SUPPLY CIRCUIT (BCM)
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open and short between BCM and fuse or fusible link.
3. CHECK GROUND CIRCUIT (BCM)
1. Turn ignition switch OFF.
2. Check continuity between BCM connector and ground.
OK or NG
OK >> BCM circuit is OK. Check the driver seat control unit.
GO TO 4.
NG >> Repair or replace the harness between BCM and ground.
4. CHECK FUSE
Check 10A fuse [No.9, located in fuse block (J/B)].
NOTE:
Refer to SE-15, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 5.
NG >> If fuse is blownout, be sure to eliminate cause of malfunction before installing new fuse. Refer to
SE-15, "
Component Parts and Harness Connector Location" .
ConnectorTe r m i n a l s
(Wire color)Power
sourceConditionVoltage (V)
(Approx.)
(+) (–)
M311 (LG/R) GroundACC
power
supplyIgnition
switch
ACCBattery voltage
38 (W/L) GroundIgnition
power
supplyIgnition
switch
ONBattery voltage
B1442 (L/R)
55 (G)GroundBattery
power
supplyIgnition
switch
OFFBattery voltage
PIIA5083E
ConnectorTe r m i n a l s
(Wire color)
Condition Continuity
(+) (–)
B1449 (B)
52 (B)GroundIgnition switch
OFFContinuity should exist.
PIIA5084E

AUTOMATIC DRIVE POSITIONER
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Revision: 2004 November 2004 FX35/FX45
5. CHECK POWER SUPPLY CIRCUIT (DRIVER SEAT CONTROL UNIT)
1. Disconnect driver seat control unit connector.
2. Check voltage between driver seat control unit and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness between driver seat control unit and fuse block (J/B).
6. CHECK GROUND CIRCUIT (DRIVER SEAT CONTROL UNIT)
1. Turn ignition switch OFF.
2. Check continuity between the driver seat control unit connector
B152, B153 terminal16A (B), 61E (B/Y) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness between driver seat control
unit and ground.
7. CHECK POWER SUPPLY CIRCUIT (AUTOMATIC DRIVE POSITIONER CONTROL UNIT)
1. Disconnect automatic drive positioner control unit connector.
2. Check voltage between automatic drive positioner control unit
and ground.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace harness between automatic drive positioner control unit and fuse block (J/B).
ConnectorTerminals
(Wire color)Power
sourceconditionVoltage (V)
(Approx.)
(+) (–)
B152 9 (BR) GroundSTART
power
supplyIgnition
switch
STARTBattery
voltage
B1531A (R),
11 A ( R / W )GroundBattery
power
supplyIgnition
switch
OFFBattery
voltage
PIIA5085E
16A (B) – Ground : Continuity should exist.
61E (B/Y) – Ground : Continuity should exist.
PIIA5087E
ConnectorTerminals
(Wire color)Power
sourceconditionVoltage (V)
(Approx.)
(+) (–)
M49 28 (SB)
GroundSTART
power
supplyIgnition
switch
STARTBattery
voltage
M50 34 (L/R)
M50 39 (W/R) GroundBattery
power
supplyIgnition
switch
OFFBattery
voltage
PIIA5086E

AUTOMATIC DRIVE POSITIONER
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Revision: 2004 November 2004 FX35/FX45
4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit connector.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace sliding motor.
NG >> Replace driver seat control unit.
Reclining Motor Circuit CheckAIS002XO
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 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 circuit is OK.
NG >> GO TO 3.
Connec-
torTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
B1533 (G)
GroundSliding switch turned to forward Battery voltage
Sliding switch neutral position 0
10 (G/R)Sliding switch turned to backward Battery voltage
Sliding switch neutral position 0
PIIA6113E
Test item Description
SEAT
RECLININGThe reclining motor is activated by receiving the drive signal.
PIIA0268E

SE-46
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
3. CHECK RECLINING MOTOR HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector and reclining motor connector.
3. Check continuity between driver seat control unit connector B153 terminals 4 (G/L), 12 (G/Y) and reclining
motor connector B166 terminals 4 (G/L), 12 (G/Y).
4. Check continuity between driver seat control unit connector
B153 terminals 4 (G/L), 12 (G/Y) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between driver seat control
unit and reclining motor.
4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace reclining motor.
NG >> Replace driver seat control unit.
Front Lifting Motor Circuit CheckAIS002XP
1. CHECK FRONT END SEAT LIFTING MECHANISM
Check the following.

Operation malfunction caused by lifter mechanism deformation or pinched harness or other foreign mate-
rials

Operation malfunction caused by foreign materials adhered to the lifter motor or lead screws

Operation malfunction and interference with other parts by installation
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning part and check again.4 (G/L) – 4 (G/L) : Continuity should exist.
12 (G/Y) – 12 (G/Y) : Continuity should exist.
4 (G/L) – Ground : Continuity should not exist.
12 (G/Y) – Ground : Continuity should not exist.
PIIA6117E
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
B1534 (G/L)
GroundReclining switch turned to
forwardBattery voltage
Reclining switch neutral
position0
12 (G/Y)Reclining switch turned to
backwardBattery voltage
Reclining switch neutral
position0
PIIA6116E

SE-48
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit connector.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace front lifting motor.
NG >> Replace driver seat control unit.
Rear Lifting Motor Circuit CheckAIS002XQ
1. CHECK REAR END SEAT LIFTING MECHANISM
Check the following.

Operation malfunction caused by lifter mechanism deformation or pinched harness or other foreign mate-
rials

Operation malfunction caused by foreign materials adhered to the lifter motor or lead screws

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair 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 >> Rear lifting motor check is OK.
NG >> GO TO 3.
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
B1535 (LG)
GroundFront lifting switch turned to
downwardBattery voltage
Front lifting switch neutral
position0
13 (Y)Front lifting switch turned to
upwardBattery voltage
Front lifting switch neutral
position0
PIIA6119E
Test item Description
SEAT LIFTER
RRThe rear end lifter motor is activated by receiving the drive sig-
nal.
PIIA0274E

AUTOMATIC DRIVE POSITIONER
SE-49
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Revision: 2004 November 2004 FX35/FX45
3. CHECK REAR LIFTING HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector and rear lifting motor connector.
3. Check continuity between driver seat control unit connector B153 terminals 6 (G/W), 7 (G/B) and lifting
motor connector B162 terminals 6 (G/W), 7 (G/B).
4. Check continuity between driver seat control unit B153 terminals
6 (G/W), 7 (G/B) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between driver seat control
unit and rear lifting motor.
4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit connector.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace rear lifting motor.
NG >> Replace driver seat control unit.
Telescopic Motor Circuit CheckAIS002Y9
1. CHECK STEERING WHEEL TELESCOPIC MECHANISM
Check following.

Operation malfunction caused by steering wheel telescopic mechanism deformation or pinched harness
or other foreign materials

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning part and check again.6 (G/W) – 6 (G/W) : Continuity should exist.
7 (G/B) – 7 (G/B) : Continuity should exist.
6 (G/W) – Ground : Continuity should not exist.
7 (G/B) – Ground : Continuity should not exist.
PIIA6123E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
B1536 (G/W)
GroundRear lifting switch turned to
upwardBattery voltage
Rear lifting switch neutral
position0
7 (G/B)Rear lifting switch turned to
downwardBattery voltage
Rear lifting switch neutral
position0
PIIA6122E

AUTOMATIC DRIVE POSITIONER
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Revision: 2004 November 2004 FX35/FX45
4. CHECK BCM OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit connector.
2. Check voltage between automatic drive positioner control unit connector and ground.
OK or NG
OK >> Replace tilt and telescopic motor.
NG >> Replace automatic drive positioner control unit.
Tilt Motor Circuit CheckAIS002YA
1. CHECK STEERING WHEEL TILT MECHANISM
Check following.

Operation malfunction caused by steering wheel tilt mechanism deformation or pinched harness and
other foreign materials

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning part.
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 tilt motor circuit is OK.
NG >> GO TO 3.
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M5036 (L/R)
GroundTelescopic switch turned to
upwardBattery voltage
Telescopic switch neutral
position0
44 (L/W)Telescopic switch turned to
downwardBattery voltage
Telescopic switch neutral
position0
PIIA5068E
Test item Description
TILT MOTOR The tilt motor is activated by receiving the drive signal.
PIIA0280E

SE-52
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
3. CHECK TILT MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit connector and tilt and telescopic motor connector.
3. Check continuity between automatic drive positioner control unit connector M50 terminals 35 (R/L), 42 (R/
B) and tilt and telescopic motor connector M27 terminals 1 (R/L), 2 (R/B).
4. Check continuity between automatic drive positioner control unit
connector M50 terminals 35 (R/L), 42 (R/B) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between automatic drive
positioner control unit and tilt and telescopic motor.
4. CHECK BCM OUTPUT SIGNAL
1. Connect automatic drive positioner control unit connector and tilt and telescopic motor connector.
2. Check voltage between automatic drive positioner control unit connector and ground.
OK or NG
OK >> Replace tilt and telescopic motor.
NG >> Replace automatic drive positioner control unit.
Driver Side Mirror Motor Circuit CheckAIS003BU
1. CHECK DOOR MIRROR FUNCTION
Check the following.
Operation malfunction caused by a foreign object caught in door mirror face edge.
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning parts, and check the symptom again.35 (R/L) – 1 (R/L) : Continuity should exist.
42 (R/B) – 2 (R/B) : Continuity should exist.
35 (R/L) – Ground : Continuity should not exist.
42 (R/B) – Ground : Continuity should not exist.
PIIA5065E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M5035 (R/L)
GroundTilt switch turned to
upwardBattery voltage
Tilt switch neutral
position0
42 (R/B)Tilt switch turned to
downwardBattery voltage
Tilt switch neutral
position0
PIIA5067E