INFINITI FX35 2007 Service Manual

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Revision: 2006 July 2007 FX35/FX45
2. CHECK KEY SWITCH POWER 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. 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.
3 (L/R) – Ground : Battery voltage.
PIIA5093E
Con-
nector Terminal Condition Continuity
M2234 Key is inserted in ignition key cylinder. Yes
Key is removed from ignition key cylinder. No
PIIA6140E
4 (B/W) – 37 (B/W) : Continuity should exist.
4 (B/W) – Ground : Continuity should not exist.
PIIA5095E

SE-84
AUTOMATIC DRIVE POSITIONER
Revision: 2006 July 2007 FX35/FX45
Check Key Switch Circuit (Without Intelligent Key)NIS001VW
1. CHECK KEY SWITCH (WITH CONSULT-II)
With CONSULT-II
Touch “BCM”. With “IGN KEY SW” on the DATA MONITOR, Check ON/OFF operation.
*: Refer to BL-37, "
Data Monitor"
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.
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.
PIIA0298E
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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Revision: 2006 July 2007 FX35/FX45
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 CircuitNIS001VX
1. CHECK FUNCTION (WITH CONSULT-II)
With CONSULT-II
With “SET SW, MEMORY SW1, MEMORY 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. 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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AUTOMATIC DRIVE POSITIONER
Revision: 2006 July 2007 FX35/FX45
2. CHECK SEAT MEMORY SWITCH
1. Turn ignition switch OFF.
2. Disconnect seat memory switch connector.
3. Check continuity between seat memory switch 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.
2. Check continuity between driver seat control unit connector B152 terminals 22, 34, 35 and seat memory switch connector
D22 terminals 1, 2, 3.
3. Check continuity between driver seat control unit connector B152 terminals 22, 34, 35 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between driver seat control unit and seat memory switch.
4. CHECK SEAT MEMORY SWITCH GROUND CIRCUIT
Check continuity between seat memory switch connector D22 termi-
nal 4 and ground.
OK or NG
OK >> Replace driver seat control unit.
NG >> Repair or replace harness between seat memory switch and ground.
Connec-
tor Terminals Condition Continuity
D22 1
4 Memory 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
22 (R/B) – 1 (P) : Continuity should exist.
34 (L/W) – 3 (GY) : Continuity should exist.
35 (L/B) – 2 (LG) : Continuity should exist.
22 (R/B) – Ground : Continuity should not exist.
34 (L/W) – Ground : Continuity should not exist.
35 (L/B) – Ground : Continuity should not exist.
PIIB8598E
4 (B) – Ground : Continuity should exist.
PIIA4821E

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Revision: 2006 July 2007 FX35/FX45
Check Seat Memory Indicator Lamp CircuitNIS001VY
1. CHECK FUNCTION (WITH CONSULT-II)
With CONSULT-II
With “MEMORY SW INDCTR” in ACTIVE TEST, check operation.
OK or NG
OK >> Seat memory indicator lamp circuit is OK.
NG >> GO TO 2.
2. CHECK SEAT MEMORY SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect seat memory switch connector.
3. Check voltage between seat memory switch connector D22 ter- minal 5 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between fuse block (J/B) and seat memory switch.
3. CHECK HARNESS CONTINUITY
1. Disconnect driver seat control unit connector.
2. Check continuity between driver seat control unit connector B152 terminals 23, 36 and seat memory switch connector D22
terminals 6, 7.
3. Check continuity between driver seat control unit connector B152 terminals 23, 36 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between driver seat control unit and seat memory switch.
Test item Description
MEMORY SW
INDCTR The memory switch indicator is lit by receiving the drive signal.
PIIA0319E
5 (R) – Ground : Battery voltage
PIIA4595E
23 (Y/W) – 6 (PU) : Continuity should exist.
36 (Y/G) – 7 (L) : Continuity should exist.
23 (Y/W) – Ground : Continuity should not exist.
36 (Y/G) – Ground : Continuity should not exist.
PIIB8599E

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AUTOMATIC DRIVE POSITIONER
Revision: 2006 July 2007 FX35/FX45
4. CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL
Check voltage between driver seat control unit connector B152 ter-
minals 23, 36 and ground.
OK or NG
OK >> Seat memory indicator lamp circuit is OK.
NG >> Replace seat memory switch.
Check UART Communication Line CircuitNIS001VZ
1. CHECK UART LINE HERNESS
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector and automatic drive positioner control unit connector.
3. Check continuity between driver seat control unit connector B152 terminal 2, 8 and automatic drive positioner connector
M49 terminal 10, 26.
4. Check continuity between driver seat control unit connector B152 terminal 2, 8 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between driver seat control unit and automatic drive positioner control unit.
23 (Y/W) – Ground : Battery voltage
36 (Y/G) – Ground : Battery voltage
PIIA5078E
2 (P) − 26 (W) : Continuity should exist.
8 (G/Y) − 10 (B) : Continuity should exist.
2 (P) − Ground : Continuity should not exist.
8 (G/Y) − Ground : Continuity should not exist.
PIIA5099E

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Revision: 2006 July 2007 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 signal dose not appear with a constant voltage (approx. 5V), replace driver seat
control unit.

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

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

When voltage signal 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 seat control unit exchanged?
Does seat memory function operate?
YES >> Replace automatic drive positioner control unit.
NG >> Replace driver seat control unit.
Connector Te r m i n a l s
(Wire color) Condition Signal
(Reference value)
(+) (–)
B152 2 (P) Ground Seat
memory
switch 1 or
2 opera-
tion
PIIA5097EPIIA4814E
Connector Te r m i n a l s
(Wire color) Condition Signal
(Reference value)
(+) (–)
M49 10 (B) Ground Seat
memory
switch 1 or
2 opera-
tion
PIIA5098EPIIA4813E

SE-90
AUTOMATIC DRIVE POSITIONER
Revision: 2006 July 2007 FX35/FX45
Check Lumbar Support CircuitNIS001W0
1. CHECK LUMBAR SUPPORT SWITCH
1. Turn ignition switch OFF.
2. Disconnect lumbar support switch connector.
3. Check voltage between lumbar support switch connector B158 terminal 1 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between fuse block (J/B) and lumbar support switch.
2. CHECK LUMBAR SUPPORT SWITCH
Lumbar support switch operate, check continuity lumbar support switch connector B158 terminal 31, 32 and 1,
16B.
OK or NG
OK >> GO TO 3.
NG >> Replace lumbar support switch.
3. CHECK LUMBAR SUPPORT MOTOR HARNESS
1. Disconnect lumbar support motor connector.
2. Check continuity between lumbar support switch connector B158 terminal 31, 32 and lumbar support motor connector B172
terminal 31, 32.
3. Check continuity between lumbar support switch connector B158 terminal 31, 32 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between lumbar support switch and lumbar support motor. 1 (R) – Ground: : Battery voltage
PIIB8600E
Con-
nector Terminal Lumbar support switch
condition Continuity
B158 31
1 BACKWARD Yes
16B Other than above No
32 1FORWARD Yes
16B Other than above No
PIIB8601E
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.
PIIB8602E

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Revision: 2006 July 2007 FX35/FX45
4. CHECK LUMBAR SUPPORT SWITCH GROUND CIRCUIT
Check continuity between lumbar support switch connector B158
terminal 16B and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace harness between lumbar support switch and ground.
16B (B) – Ground : Continuity should exist.
PIIB8603E

SE-92
POWER SEAT
Revision: 2006 July 2007 FX35/FX45
POWER SEATPFP:87016
Wiring Diagram — SEAT —NIS001W3
TIWM1705E