seat memory INFINITI FX35 2004 User Guide

SE-86
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
4. CHECK HARNESS CONTINUITY
1. Disconnect key switch and connector and BCM connector.
2. Check continuity between key switch connector M23 terminal 1
(B/W) and BCM connector M3 terminal 37 (B/W).
3. Check continuity between key switch connector M23 terminal 1
(B/W) and ground.
OK or NG
OK >> Key switch and circuit is OK.
NG >> Repair or replace harness between key switch and BCM.
Seat Memory Switch Circuit CheckAIS002Y0
1. CHECK FUNCTION
With CONSULT-II
With “SET SW,MEMORY SW1, MEMORY SW2” on the DATA MON-
ITOR, operate the switch to check ON/OFF operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Seat memory switch circuit is OK.
NG >> GO TO 2.1 (B/W) – 37 (B/W) : Continuity should exist.
1 (B/W) – Ground : Continuity 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.
PIIA0309E

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Revision: 2004 November 2004 FX35/FX45
2. CHECK SEAT MEMORY SWITCH
1. Turn ignition switch OFF.
2. Disconnect "memory switch and lumber support switch" connec-
tor.
3. Operate the setting switch and memory switch.
4. Check continuity between "memory switch and lumber support
switch" connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace "memory switch and lumber support switch" and lumber support switch.
3. CHECK HARNESS CONTINUITY
1. Disconnect driver seat control unit connector.
2. Check continuity between driver seat control unit connector
B152 terminals 22 (L/G), 34 (L/W), 35 (L/B) and "memory switch
and lumber support switch" connector B158 terminals 22 (L/G),
34 (L/W), 35 (L/B).
3. Check continuity between automatic drive positioner control unit
connector M19 terminals 22 (L/G), 34 (L/W), 35 (L/B) and
ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between driver seat control unit and "memory switch and lumber sup-
port switch".
Terminals Condition Continuity
34
(L/W)
61 (B/Y)Set switch: ON Yes.
Set switch: OFF No.
22
(L/G)Memory switch 1 ON Yes.
Memory switch 1: OFF No.
35
(L/B)Memory switch 2: ON Yes.
Memory switch 2: OFF No.
PIIA6951E
22 (L/G) – 22 (L/G) : Continuity should exist.
34 (L/W) – 34 (L/W) : Continuity should exist.
35 (L/B) – 35 (L/B) : Continuity should exist.
22 (L/G) – Ground : Continuity should not exist.
34 (L/W) – Ground : Continuity should not exist.
35 (L/B) – Ground : Continuity should not exist.
PIIA5075E

SE-88
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
4. CHECK "MEMORY SWITCH AND LUMBER SUPPORT SWITCH" GROUND CIRCUIT
Check continuity between "memory switch and lumber support
switch" B158 terminal 61 (B/Y) and ground.
OK or NG
OK >> Replace driver seat control unit.
NG >> Repair or replace harness between "memory switch and
lumber support switch" and ground.
Memory Indicator Lamp Circuit CheckAIS002Y7
1. CHECK FUNCTION
With CONSULT-II
With “MEMORY SW INDCTR” in ACTIVE TEST, check operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Memory indicator lamp circuit is OK.
NG >> GO TO 2.
2. CHECK "MEMORY SWITCH AND LUMBER SUPPORT SWITCH" POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect "memory switch and lumber support switch" connector.
3. Check voltage between "memory switch and lumber support
switch" connector B158 terminal 11 (R/W) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between fuse block (J/B) and memory switch and lumber support
switch. 61 (B/Y) – Ground : Continuity should exist.
PIIA6706E
Test item Description
MEMORY SW
INDCTRThe memory switch indicator is lit by receiving the drive signal.
PIIA0319E
11 (R/W) – Ground : Battery voltage
PIIA6705E

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Revision: 2004 November 2004 FX35/FX45
3. CHECK HARNESS CONTINUITY
1. Disconnect driver seat control unit connector.
2. Check continuity between driver seat control unit connector
B152 terminals 23 (Y/W), 36 (Y/G) and "memory switch and
lumber support switch" connector D3 terminals 23 (Y/W), 36 (Y/
G).
3. Check continuity between driver seat control unit connector
B152 terminals 23 (Y/W), 36 (Y/G) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between automatic drive positioned control unit and "memory switch
and lumber support switch".
4. CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL
Check voltage between driver seat control unit connector B152 ter-
minals 23 (Y/W), 36 (Y/G) and ground.
OK or NG
OK >> Memory indicator lamp circuit is OK.
NG >> Replace "memory switch and lumber support switch".
Uart Communication Line Circuit CheckAIS002Y8
1. CHECK UART LINE HERNESS
1. Disconnect driver seat control unit connector and automatic
drive positioner control unit connector.
2. Check continuity between driver seat control unit connector
B152 terminal 2 (P), 8 (G/Y) and automatic drive positioner con-
nector M49 terminal 10 (B), 26 (G).
3. Check continuity between driver seat control unit connector
B152 terminal 2 (P), 8 (G/Y) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between driver seat control unit and automatic drive positioner.23 (Y/W) – 23 (Y/W) : Continuity should exist.
36 (Y/G) – 36 (Y/G) : Continuity should exist.
23 (Y/W) – Ground : Continuity should not exist.
36 (Y/G) – Ground : Continuity should not exist.
PIIA5077E
23 (Y/W) – Ground : Battery voltage
36 (Y/G) – Ground : Battery voltage
PIIA5078E
2 (P) − 26 (W) : Continuity should exist.
8 (G/Y) − 10 (R) : Continuity should exist.
2 (P) − Ground : Continuity should not exist.
8 (G/Y) − Ground : Continuity should not exist.
PIIA5099E

SE-90
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
2. CHECK UART LINE SIGNAL 1
1. Turn ignition switch ON.
2. Check signal between driver seat control unit connector ground,
with oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Check the flowing.

When voltage waveform dose not appear with a constant voltage (approx. 5V), replace driver
seat control unit.

When voltage waveform dose not appear with a constant voltage (approx. 0V), replace auto-
matic drive positioner control unit.
3. CHECK UART LINE SIGNAL 2
Check signal between automatic driver positioner control unit con-
nector ground, with oscilloscope.
OK or NG
OK >> GO TO 4.
NG >> Check the flowing.

When voltage waveform dose not appear with a constant voltage (approx. 5V), replace auto-
matic driver seat control unit.

When voltage waveform dose not appear with a constant voltage (approx. 0V), replace driver
seat control unit.
4. CHECK DRIVER SEAT CONTROL UNIT
Dose the automatic drive positioner operate, when the driver control unit exchanged?
Does seat memory function operate?
YES >> Replace automatic drive positioner control unit.
NG >> Replace driver seat control unit.
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
B152 2 (P) GroundSeat
memory
switch 1 or
2 opera-
tion
PIIA5097E
PIIA4814E
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
M49 10 (R) GroundSeat
memory
switch 1 or
2 opera-
tion
PIIA5098E
PIIA4813E

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Revision: 2004 November 2004 FX35/FX45
Lumber Support Circuit CheckAIS003C1
1. CHECK LUMBER SUPPORT SWITCH
1. Turn ignition switch OFF.
2. Disconnect l"memory switch and lumber support switch" con-
nector.
3. Check voltage between l"memory switch and lumber support
switch" connector B158 terminal 1 (R) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between fuse block (J/B) and l"memory switch and lumber support
switch".
2. CHECK LUMBER SUPPORT SWITCH
Check continuity power seat switch.
OK or NG
OK >> GO TO 3.
NG >> Replace power seat switch.
3. CHECK LUMBER SUPPORT MOTOR HARNESS
1. Disconnect lumber support motor connector.
2. Check continuity between l"memory switch and lumber support
switch" connector B158 terminal 31 (W), 32 (L) and lumber sup-
port motor connector B195 terminal 31 (W), 32 (L).
3. Check continuity between l"memory switch and lumber support
switch" connector B159 terminal 31 (W), 32 (L) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between l"memory switch and lumber support switch" and lumber sup-
port motor. 1 (R) – Ground: : Battery voltage
PIIA6707E
Terminal Condition Continuity
311 Lumber support switch turned to backward. Yes
16B Lumber support switch turned to forward. No
321 Lumber support switch turned to forward. Yes
16B Lumber support switch turned to backward. No
PIIA6709E
31 (W) − 31 (W) : Continuity should exist.
32 (L) − 32 (L) : Continuity should exist.
31 (W) − Ground : Continuity should not exist.
32 (L) − Ground : Continuity should not exist.
PIIA6710E

SE-102
FRONT SEAT
Revision: 2004 November 2004 FX35/FX45
1. Headrest 2. Headrest holder (Free) 3. Headrest holder (Looked)
4. Seatback pad 5. Seatback trim 6. Seat cushion inner finisher
7. Screw 8. Power seat switch assembly 9. Seat cushion trim
10. Seat cushion pad 11. Seatback garnish 12. Nut
13. Side air bag module 14. Clip (C101) 15. Inner cloth stay
16. Lumber support device 17. Bolt 18. Seatback frame
19. Reclining device assembly 20. Seat cushion frame 21. Seat harness assembly
22. Seat adjust assembly 23. Clip (C103) 24. Seat adjust assembly cover
25. Seat cushion outer finisher 26. Seat cushion outer finisher cover 27. Power seat memory switch assembly
28. Seat cushion forward finisher 29. Seat cushion forward finisher lid

FRONT SEAT
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Revision: 2004 November 2004 FX35/FX45
REMOVAL
When removing or installing the seat trim, carefully handle it to keep dirt out and avoid damage.
CAUTION:

Before removing the front seat, turn ignition switch OFF, disconnect both battery cables and wait
at least 3 minutes.

When checking the power seat circuit for continuity using a circuit tester, do not confuse its con-
nector with the side air bag module connector. Such an error may cause the air bag to deploy.

Do not drop, tilt, or bump the side air bag module installing in the seat. Always handle it with care.
1. Remove the seat cushion outer finisher cover.
2. Remove the front seat belt anchor bolt. Refer toSB-4, "
Removal
and Installation of Front Seat Belt" .
CAUTION:
Set the front and rear cushion lifter to the down position.
3. Remove the screw.
4. Remove the seat cushion forward finisher lid.
5. Remove the seat cushion forward finisher.
6. Remove the seat cushion outer finisher.
7. Remove the power seat memory switch assembly.
PIIA6040E
PIIA6039E
1. Screw 2. Seat cushion forward finisher 3. Seat cushion outer finisher
4. Clip(C101)