air 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

AUTOMATIC DRIVE POSITIONER
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7. Based on the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SE-42,
"Symptom Chart" .
8. Does the automatic drive positioner system operate normally?
If it is normal, GO TO 8.
If it is not normal, GO TO 3.
9. INSPECTION END
Preliminary CheckAIS002XK
SETTING CHANGE FUNCTION
The settings of the automatic driving positioner system can be changed, using CONSULT-II and the display
unit in the center of the instrument panel.
×: Applicable –: Not applicable
It is possible to set sliding driver seat for entry/exit of vehicle by pressing set switch.
NOTE:
After the setting is registered, the new setting is effective, even if the battery is disconnected.
CHECK POWER SUPPLY AND GROUND
1. CHECK FUSE
Check if any of the following fuses in the BCM are blown.
NOTE:
Refer to SE-15, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
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" .
Setting item ContentCONSULT–II
(WORK SUPPORT)Display unitFactory
setting
Change seat sliding volume
settingThe distance at retain operation
can be selected from the following
3 modes.40 mm
—×
80 mm —
150 mm —
Change the Entry/Exit seat
slide function settingThe seat sliding turnout and return
at entry/exit can be selected: ON
(operated) – OFF (not operated)ON ON: Indicator lamp ON×
OFF OFF: Indicator lamp OFF —
Change the Entry/Exit tilt
steering wheel function settingLift up and backward steering
wheel at entry and exit can be
selected: ON (operated) - OFF (not
operated)ON ON: Indicator lamp ON×
OFF OFF: Indicator lamp OFF —
Reset custom settings All settings to default. —Default: Setting button
OFF—
Content Setting change operation Indicator LEDs
The seat sliding turnout and
steering wheel up/backward at
entry/exit can be operated.
Press the set switch for more than 10 secondsBlinking twice
The seat sliding turnout and
steering wheel up/backward at
entry/exit can be not operated.Blinking ones
Unit Power source Fuse/fusible link No.
BCMACC or ON power supply 6 (10A)
ON or STRAT power supply 1 (15A)
Battery power supply 22 (15A)
Battery power supply M (50A)

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

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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

SE-38
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
8. CHECK GROUND CIRCUIT (AUTOMATIC DRIVE POSITIONER CONTROL UNIT)
Check continuity between the automatic drive positioner control unit connector M50 terminal 40 (B), 48 (B)
and ground.
OK or NG
OK >> Driver seat control unit circuit is OK.
NG >> Repair or replace harness between automatic drive
positioner control unit and ground.
CONSULT-II FunctionAIS002YF
The following functions are performed by combining data received and command transmitted via the commu-
nication line from the driver seat control unit.
*1: For setting automatic drive positioner functions only.
*2: Refer to BL-40, "
Data Monitor" .
*3: During vehicle driving, do not perform active test.
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Turn ignition switch “OFF”.
2. Connect “CONSULT-II” and “CONSULT-II CONVERTER” to the
data link connector.
3. Turn ignition switch “ON”.40 (B) – Ground : Continuity should exist.
48 (B) – Ground : Continuity should exist.
PIIA5088E
CONSULT-II
diagnosis
itemsInspection item, self-diagnosis mode Content
AUTO DRIVE
POSITIONERWORK SUPPORT*
1Changes the setting for each function.
SELF–DIG RESULTS Check the self-diagnosis results.
DATA MONITOR Selection from menuDisplays the input data to driver seat control unit and automatic
driving positioned control unit on real-time basis.
CAN DIAGNOSTIC SUPPORT MONITORThe results of transmit / receive diagnosis of CAN communica-
tion can be read
ACTIVE TEST
*3Gives a drive signal to a load to check the operation.
DRIVER SEAT CONTROL UNIT PART NUMBER Displays driver seat control unit part No.
BCM*
2DATA MONITOR Selection from menu Displays the input data to BCM on real-time basis
PBIB1503E

SE-44
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
Sliding Motor Circuit CheckAIS002XN
1. CHECK SEAT SLIDING MECHANISM
Check the following.

Operation malfunction caused by sliding rail deformation or pinched harness or other foreign materials

Operation malfunction caused by foreign materials adhered to the sliding motor or sliding rail connector
rod

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 SLIDE” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Sliding motor circuit is OK.
NG >> GO TO 3.
3. CHECK SLIDING MOTOR HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector and sliding motor connector.
3. Check continuity between driver seat control unit connector
B153 terminals 3 (G), 10 (G/R) and sliding motor connector
B161 terminals 3 (G), 10 (G/R).
4. Check continuity between driver seat control unit connector
B153 terminals 3 (G), 10 (G/R) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between driver seat control unit and sliding motor.
Test item Description
SEAT SLIDE The sliding motor is activated by receiving the drive signal.
PIIA0265E
3 (G) – 3 (G) : Continuity should exist.
10 (G/R) – 10 (G/R) : Continuity should exist.
3 (G) – Ground : Continuity should not exist.
10 (G/R) – Ground : Continuity should not exist.
PIIA6114E

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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

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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 >> Front lifting motor circuit is OK.
NG >> GO TO 3.
3. CHECK FRONT LIFTING MOTOR HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector and front lifting motor connector.
3. Check continuity between driver seat control unit connector B153 and terminals 5 (LG), 13 (Y) and front
lifting motor connector B164 terminals 5 (LG), 13 (Y).
4. Check continuity between driver seat control unit connector
B153 and terminals 5 (LG), 13 (Y) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between driver seat control
unit and front lifting motor.
Test item Description
SEAT
LIFTER FRThe front end lifter motor is activated by receiving the drive sig-
nal.
PIIA0271E
5 (LG) – 5 (LG) : Continuity should exist.
13 (Y) – 13 (Y) : Continuity should exist.
5 (LG) – Ground : Continuity should not exist.
13 (Y) – Ground : Continuity should not exist.
PIIA6120E