key INFINITI FX35 2008 Service Manual

SE-14
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
Selecting the memory
NOTE:
The driver's seat position and steering adjustment functions (see the following table) operate simultaneously in
the order of priority.
*: In conjunction with sliding the seat, the door mirrors are positioned.
ENTRY OPERATION
When the seat are on the exiting posit ions, the following operation moves the seat to the previous position
before the exiting operation.
EXITING OPERATION
At exit, the seat are automatica lly moved to the exiting position.
KEYFOB INTERLOCK OPERATION
Priority Function Priority Function
1 Seat sliding, door mirror LH/RH* 4 Seat reclining
2 Steering wheel telescoping 5 Seat lifter-FR
3 Steering wheel tilt 6 Seat lifter-RR
PIIA6137E
PIIA6135E
PIIA6136E
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 Perform memory operation, exiting operation and entry operation by pressing keyfob unlock button.
NOTE:
 If steering wheel operation is cancelled, t he system performs seat and mirror operation only.
 If Entry/Exiting operation is canc elled, the system performs steering wheel operation and mirror operation
only.
 If ignition switch turns ON in the middle of memory operation, the system does not perform exiting operation
after memory operation.
 If ignition switch turns ON in the middle of exit ing operation, entry operation starts at that time.
FAIL- SAFE MODE
When any manual and automatic operations are not performed, if any motor operations of seats or tilt of steer-
ing are detected for approx. 0.1 sec or more, status is judged “Output malfunction”. Motor operation will be
suspended automatically, and all automatic operations will be ineffective (in this case, the motor will not oper-
ate manually).
CANCEL OF FAIL-SAFE MODE
 The mode is cancelled when the selector lever is shifted to P position from any other position.
PIIA6949E
OPERATED PORTIONSeat sliding
Seat reclining
Seat lifting (Front)
Seat lifting (Rear)
steering tilt
steering telescopic
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CAN Communication System DescriptionINFOID:0000000001328099
CAN (Controller Area Network) is a serial communication li ne for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitINFOID:0000000001328100
Refer to LAN-43, "CAN System Specification Chart".
1. a: 10A 38 fuse (With Intelligent Key)
b: 50A M fusible link 2. a: Fuse block (J/B) M1, M2
b: BCM M3, M4, B14
(View with the dash side LH removed) 3. Fuse block (J/B) fuse layout
4. a: Automatic drive positioner control unit M49, M50
b: A/T device (park position switch)
M67
(View with the center console re-
moved) 5. Tilt motor and telescopic motor M27
Tilt sensor and telescopic sensor M28
(View with the instrument driver lower
panel removed) 6. Seat memory switch D22
7. a: Power seat switch B175 b: Sliding switch & Lifting switch
(front & rear)
c: Reclining switch
d: Lumbar support switch B158 8. a: Lumbar support motor B172
b: Reclining motor B166 9. a: Sliding motor B161
b: Lifting motor (front) B164
c: Lifting motor (rear) B162
d: Driver seat control unit B152,
B153
10. ADP steering switch M13 11. Key switch connector M23 (Without Intelligent Key)12. Key switch and ignition knob switch
connector M22
(With Intelligent Key)
13. Front door switch (Driver side) B26 14. Door mirro r (Driver side) D2 15. Door mirror (Passenger side) D32
16. Door mirror remote control switch M18 17. Unified meter and A/C amp. M55
(View with the clus ter lid C removed)
PIIB8566E
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SE-32
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
Terminal and Reference Value for BCM
INFOID:0000000001328103
Terminal and Reference Value for Auto matic Drive Positioner Control UnitINFOID:0000000001328104
Te r -
minal Wire
Color Item Signal
Input/Output Condition Voltage (V)
(Approx.)
11 LG Ignition switch (ACC) Input Ignition switch
(ACC or ON position)
Battery voltage
37 B/W Key switch signal Input Key switch ON (key is inserted in
ignition key cylinder)
Battery voltage
Key switch OFF (key is removed
from ignition key cylinder) 0
38 W/L Ignition switch (ON) Input Ignition switch
(ON or START position)
Battery voltage
39 L CAN-H Input/Output — —
40 P CAN-L Input/Output — —
42 L/R Power source (Fuse) Input — Battery voltage
49 B Ground (signal) — — 0
52 B Ground (power) — — 0
55 G Power supply (Fusible link) Input — Battery voltage
62 W Front door switch
(driver side)
Output ON (Open)
→ OFF (Closed) 0 → Battery voltage
Te r -
minal Wire
Color Item Signal
Input/Output Condition Voltage (V)
(Approx.)
1 R Tilt switch UP signal Input Tilt switch turned to upward 0
Other than above 5
2 G/W Changeover switch RH signal Input When changeover switch in RH
position
0
Other than above 5
3 GY Mirror switch UP signal Input When mirror switch in turned to up-
ward position
0
Other than above 5
4 Y Mirror switch LEFT signal Input When mirror switch in turned to
leftward position
0
Other than above 5
5OR Passenger side mirror sensor
(vertical) signal Input
When passenger si
de mirror motor
is UP or DOWN operation Changes between 3 (close to
perk) - 1 (close to valley)
6P/L Driver side mirror sensor
(vertical) signal InputWhen driver side mirror motor is
UP or DOWN operation Changes between 3 (close to
perk) - 1 (close to valley)
7 Y/R Tilt sensor signal Input Tilt position, top 2
Tilt position, bottom 4
10 B UART LINE (TX) Output Memory switch 1 or 2 operated
PIIA4813E
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SE-42
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
ACTIVE TEST
CAUTION:
During vehicle driving, do not perform active test.
NOTE:
If active test is performed, reset seat memory and key fob interlock drive positioner after performing work.
Display Item List
Check CAN Communication SystemINFOID:0000000001532368
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of BCM.
TILT SW-UP “ON/OFF” ON/OFF status judged from the tilt switch (UP) signal is displayed.
TILT SW-DOWN “ON/OFF” ON/OFF status judged from the tilt switch (DOWN) signal is displayed.
SET SW “ON/OFF” ON/OFF status judged from the setting switch signal is displayed.
MEMORY SW1 “ON/OFF” ON/OFF status judged from th e seat memory switch 1 signal is displayed.
MEMORY SW2 “ON/OFF” ON/OFF status judged from th e seat memory switch 2 signal is displayed.
P POSI SW “ON/OFF” The selector lever position “ON (P position) / OFF (other than P position)” judged
from the park position switch signal is displayed.
STARTER SW “ON/OFF” Ignition key switch ON (START, ON) /OFF (ignition switch IGN, ACC, or OFF) sta-
tus judged from the ignition switch signal is displayed.
SLIDE PULSE — Value (32768) when battery connects is as standard. If it moves backward, the val-
ue increases. If it moves forward, the value decreases.
RECLN RULSE — Value (32768) when battery connects is as standard. If it moves backward, the val-
ue increases. If it moves forward, the value decreases.
LIFT FR PULSE — Value (32768) when battery connects is as standard. If it moves DOWN, the value
increases. If it moves UP, the value decreases.
LIFT RR PULSE — Value (32768) when battery connects is as standard. If it moves DOWN, the value
increases. If it moves UP, the value decreases.
TILT SEN “V” The tilt position (voltage) judged from the tilt sensor signal is displayed.
TELESCO SEN “V” The telescoping position (voltage) judged from the telescoping sensor signal is dis-
played.
MIR/SE RH R–L “V” Voltage output from RH do or mirror sensor (LH/RH) is displayed.
MIR/SE RH U–D “V” Voltage output from RH door mirror sensor (UP/DOWN) is displayed.
MIR/SE LH R–L “V” Voltage output from LH door mirror sensor (LH/RH) is displayed.
MIR/SE LH U–D “V” Voltage output from LH door mirror sensor (UP/DOWN) is displayed. Monitor item [OPERAT
ION or UNIT] Contents
Test item Description
TILT MOTOR The tilt motor is activated by receiving the drive signal.
TELESCO MOTOR The telescopic motor is activated by receiving the drive signal.
SEAT SLIDE The sliding motor is activated by receiving the drive signal.
SEAT RECLINING The reclining motor is activated by receiving the drive signal.
SEAT LIFTER FR The front end lifter motor is activated by receiving the drive signal.
SEAT LIFTER RR The rear end lifter motor is activated by receiving the drive signal.
MEMORY SW INDCTR The memory sw itch indicator is lit by receivin g the drive signal.
MIRROR MOTOR RH The RH mirror motor moves the mirror UP/DOW
N and LEFT/RIGHT by receiving the drive
signal.
MIRROR MOTOR LH The LH mirror motor moves the mirror UP/DOW
N and LEFT/RIGHT by receiving the drive
signal.
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Is “CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-14, "Trouble Diagnosis Flow Chart".
NO >> INSPECTION END.
Symptom ChartINFOID:0000000001328110
Symptom Diagnoses / service procedure Refer to
page
Only setting change function cannot be set with display. Interacted display system (without NAVI)
AV- 5 2
Navigation system (with NAVI)AV- 8 7
A part of seat system does not operate
(both automatically and manually).1. Check sliding motor circuit
SE-44
2. Check reclining motor circuit SE-45
3. Check front lifter motor circuitSE-46
4. Check rear lifter motor circuitSE-47
5. If the above systems are normal, replace the driver
seat control unit SE-16
A part of steering tilt, telescopic and door mirror does not
operate (both automatically and manually). 1. Check tilt motor circuit
SE-49
2. Check telescopic motor circuitSE-48
3. Check driver side mirror motor circuit SE-50
4. Check passenger side mirror motor circuit SE-52
5. If the above systems are normal, replace the
automatic drive positioner control unit SE-16
A part of seat system does not operate
(only automatic operation). 1. Check sliding sensor circuit
SE-53
2. Check reclining sensor circuitSE-54
3. Check front lifting sensor circuitSE-55
4. Check rear lifting sensor circuitSE-56
5. If the above systems are normal, replace the driver
seat control unit SE-16
A part of steering tilt, telescopic system and door mirror
system dose not operate (only automatic operation). 1. Check steering and door mirror sensor power supply
and ground circuit SE-61
2. Check driver side mirror sensor circuit
SE-59
3. Check passenger side mirror sensor circuitSE-60
4. Check tilt sensor circuitSE-58
5. Check telescopic sensor circuitSE-57
6. If all the above systems are normal, replace the
automatic drive positioner control unit SE-16
All the automatic operations do not operate. 1. Check A/T device (park position switch) circuit
SE-74
2. Check key switch circuit (with intelligent key)SE-76
3. Check key switch circuit (without intelligent key)SE-77
4. Check UART communication line circuitSE-80
5.If all the above systems are normal, replace the
automatic drive positioner control unit
SE-16
A part of seat system does not operate
(only manual operation). 1. Check sliding switch circuit
SE-63
2. Check reclining switch circuitSE-64
3. Check front lifting switch circuitSE-66
4. Check rear lifting switch circuitSE-67
5.If the above systems are normal, replace the driver
seat control unit SE-16
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AUTOMATIC DRIVE POSITIONER
Check Sliding Motor Circuit
INFOID:0000000001328111
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 wit h other parts by poor installation
OK or NG
OK >>  GO TO 2 (With CONSULT-III).  GO TO 3 (Without CONSULT-III).
NG >> Repair the malfunctioning part and check again.
2.CHECK FUNCTION
With CONSULT-III
Check operation with “SEAT SLIDE” in ACTIVE TEST.
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.
A part of steering tilt, telescopic and door mirror does not
operate (only manual operation). 1. Check door mirror remote
control switch (changeover
switch) circuit SE-71
2. Check door mirror remote co
ntrol switch (mirror switch)
circuit SE-73
3. Check tilt switch circuit
SE-70
4. Check telescopic switch circuitSE-68
5. If the above systems are normal, replace the
automatic drive positioner control unit SE-16
Only seat memory switch operation dose not operate. 1. Check seat memory switch circuit
SE-782. If the above systems are normal, replace the driver
seat control unit SE-16
Seat memory indicator lamps 1 and 2 do not illuminate. 1. Check seat memory indicator lamp circuit
SE-792. If all the above systems are normal, replace the driver
seat control unit SE-16
The Entry/Exiting does not operated when door is opened
and closed. (The Entry/Exiting operates with key switch) 1. Check front door switch
(driver side) circuit SE-62
2. If all the above systems are normal, replace the BCM BCS-13
Only seat sliding, seat reclining and seat lifting (front and
rear) operations do not operate.Check power seat switch ground circuit
SE-68
Only lumbar support does not operate. Check lumbar support circuit SE-82
Symptom Diagnoses / service procedureRefer to
page
Test item Description
SEAT SLIDE The sliding motor is activated by receiving the drive signal.
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SE-76
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AUTOMATIC DRIVE POSITIONER
Check continuity between A/T device (park position switch) connec-
tor M67 terminal 2 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace harness between A/T device (park position switch) and ground.
Check Key Switch Circuit (With Intelligent Key)INFOID:0000000001328139
1.CHECK KEY SWITCH POWER SUPPRY CIRCUIT
With CONSULT-III
Touch “BCM”. With “IGN KEY SW” on the DATA MONITOR, Check ON/OFF operation.
*: Refer to BL-36, "
CONSULT-III Function (BCM)".
OK or NG
OK >> Key switch circuit is OK.
NG >> GO TO 2.
2.CHECK KEY SWITCH PO WER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key switch and ignition knob switch connector.
3. Check voltage between key switch and ignition knob switch con- nector M22 terminal 3 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between key switch and fuse.
3.CHECK KEY SWITCH
Check continuity between key switch and ignition knob switch con-
nector M22 terminal 3 and 4.
OK or NG
OK >> GO TO 4.
NG >> Replace key switch and ignition knob switch.
4.CHECK HARNESS CONTINUITY
1. Disconnect key switch and ignition knob switch connector and BCM connector. 2 (B) – Ground : Continuity should exist.
PIIB9071E
Monitor item [OPERA-
TION or UNIT] Contents
IGN KEY SW
*“ON/
OFF” Key inserted (ON)/key removed (OFF) status judged
from the key-in detection switch is displayed.
3 (L/R) – Ground : Battery voltage.
PIIA5093E
Con-
nector Terminal Condition Continuity
M22 3 4 Key is inserted in ignition key cylinder. Yes
Key is removed from ignition key cylinder. No
PIIA6140E
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2. Check continuity between key switch and ignition knob switch connector M22 terminal 4 and BCM connector M3 terminal 37.
3. Check continuity between key switch and ignition knob switch connector M22 terminal 4 and ground.
OK or NG
OK >> Key switch circuit is OK.
NG >> Repair or replace harness between key switch and igni- tion knob switch and BCM.
Check Key Switch Circui t (Without Intelligent Key)INFOID:0000000001328140
1.CHECK KEY SWITCH
With CONSULT-III
Touch “BCM”. With “IGN KEY SW” on the DATA MONITOR, Check ON/OFF operation.
*: Refer to BL-36, "
CONSULT-III Function (BCM)"
OK or NG
OK >> Key switch circuit is OK.
NG >> GO TO 2.
2.CHECK KEY SWITCH AND KEY LOCK SOLENOID POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key switch connector.
3. Check voltage between key switch connector M23 terminal 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between key switch and fuse.
3.CHECK KEY SWITCH
Check continuity between key switch connector M23 terminal 1 and 2.
OK or NG
OK >> GO TO 4.
NG >> Replace key switch. 4 (B/W) – 37 (B/W) : Cont
inuity should exist.
4 (B/W) – Ground : Continuity should not exist.
PIIA5095E
Monitor item
[OPERATION or UNIT] Contents
IGN KEY SW
*“ON/
OFF” Key inserted (ON)/key removed (OFF) status judged
from the key-in detection switch is displayed.
2 (L/R) – Ground : Battery voltage.
PIIA5092E
Con-
nector Terminal Condition Continuity
M23 1 2 Key is inserted in ignition key cylinder. Yes
Key is removed from ignition key cylinder. No
PIIA6141E
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SE-78
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AUTOMATIC DRIVE POSITIONER
4.CHECK HARNESS CONTINUITY
1. Disconnect key switch connector and BCM connector.
2. Check continuity between key switch connector M23 terminal 1 and BCM connector M3 terminal 37.
3. Check continuity between key switch connector M23 terminal 1 and ground.
OK or NG
OK >> Key switch circuit is OK.
NG >> Repair or replace harness between key switch and BCM.
Check Seat Memory Switch CircuitINFOID:0000000001328141
1.CHECK FUNCTION
With CONSULT-III
With “SET SW, MEMORY SW1, MEMO RY SW2” on the DATA MONITOR, operate the switch to check ON/
OFF operation.
OK or NG
OK >> Seat memory switch circuit is OK.
NG >> GO TO 2.
2.CHECK SEAT MEMORY SWITCH
1. Turn ignition switch OFF.
2. Disconnect seat memory switch connector.
3. Check continuity between seat memory s witch connector D22 terminal 1, 2, 3 and 4.
OK or NG
OK >> GO TO 3.
NG >> Replace seat memory switch.
3.CHECK HARNESS CONTINUITY
1. Disconnect driver seat control unit connector. 1 (B/W) – 37 (B/W) : Cont
inuity should exist.
1 (B/W) – Ground : Conti nuity should not exist.
PIIA5094E
Monitor item
[OPERATION or UNIT] Contents
MEMORY SW1 “ON/OFF” ON/OFF status judged from the seat memory
switch 1 signal is displayed.
MEMORY SW2 “ON/OFF” ON/OFF status judged from the seat memory
switch 2 signal is displayed.
SET SW “ON/OFF” ON/OFF status judged from the setting switch
signal is displayed.
Connec-
tor Terminals Condition Continuity
D22 1
4Memory switch 1: ON Yes
Memory switch 1: OFF No
2 Memory switch 2: ON Yes
Memory switch 2: OFF No
3 Set switch: ON Yes
Set switch: OFF No
PIIA4575E
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