2005 INFINITI FX35 seat memory

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AUTOMATIC DRIVE POSITIONER
Revision: 2005 July 2005 FX
25 L/OR Seat reclining switch
FORWARD signal When seat reclining switch
FORWARD operation 0
Other than above Battery voltage
26 L/P Front lifting switch UP signal When front lifting switch
UP operation 0
Other than above Battery voltage
27 L Rear lifting switch UP signal When rear lifting switch
UP operation 0
Other than above Battery voltage
28C B/W Sensor ground — 0
29 G/L Reclining sensor signal ON (reclining motor operation)
Other than above 0 or 5
30 G/W Rear lifting sensor signal ON (rear lifting motor operation)
Other than above 0 or 5
34 L/W Set switch signal Set witch: ON 0
Set witch: OFF 5
35 L/B Power seat memory switch
2 signal Memory switch 2: ON 0
Memory switch 2: OFF 5
36 Y/G Power seat memory switch
indictor 2 signal Memory switch 2: ON 1
Memory switch 2: OFF Battery voltage
37 L/P Seat sliding switch
BACKWARD signal When seat sliding switch
BACKWARD operation 0
Other than above Battery voltage
38 LG/B Seat reclining switch
BACKWARD signal When seat reclining switch
BACKWARD operation 0
Other than above Battery voltage
39 L/G Front lifting switch
DOWN signal When front lifting switch
DOWN operation 0
Other than above Battery voltage
40 L/Y Rear lifting switch
DOWN signal When rear lifting switch
DOWN operation 0
Other than above Battery voltage
61E B/Y Ground (signal) — 0
TERMI-
NAL WIRE
COLOR ITEM CONDITION VOLTAGE (V)
(Approx.)
SIIA0692J
SIIA0693J

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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
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 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.
P POSI SW “ON/OFF” The selector lever position “OFF (P position) / ON (other than P position)” judged
from the P range switch signal is displayed.
STARTER SW “ON/OFF” Ignition key switch ON (START, ON) /OFF (ignition switch IGN, ACC, or OFF)
status judged from the ignition switch signal is displayed.
SLIDE PULSE — Value (32768) when battery connects is as standard. If it moves backward, the
value increases. If it moves forward, the value decreases.
RECLN RULSE — Value (32768) when battery connects is as standard. If it moves backward, the
value 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
displayed.
MIR/SE RH R–L “V” Voltage output from RH door 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 [OPERATION 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 switch indicator is lit by receiving the drive signal.
MIRROR MOTOR RH The RH mirror motor moves the mirror UP/DOWN and LEFT/RIGHT by receiving the drive
signal.
MIRROR MOTOR LH The LH mirror motor moves the mirror UP/DOWN and LEFT/RIGHT by receiving the drive
signal.

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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.
A part of seat system does not operate (only manual
operation). 1. Sliding switch circuit check
SE-68
2. Reclining switch circuit checkSE-69
3. Front lifting switch circuit checkSE-71
4. Rear lifting switch circuit checkSE-72
5. If the above systems are normal, replace the driver
seat control unit. SE-15
A part of steering tilt, telescopic and door mirror does not
operate (only manual operation). 1. Door mirror remote control (change over switch) circuit
check SE-78
2. Door mirror remote control (mirror switch) switching cir-
cuit check SE-80
3. Tilt switch check
SE-76
4. Telescopic switch checkSE-74
5. If the above systems are normal, replace the automatic
drive positioner control unit. SE-15
Only memory switch operation dose not operate. 1. Seat memory switch circuit check
SE-862. If the above systems are normal, replace the driver
seat control unit. SE-15
Seat memory indicator lamps 1 and 2 do not illuminate. 1. Seat memory indicator lamp circuit check
SE-882. If all the above systems are normal, replace the driver
seat control unit. SE-15
The Entry/Exiting does not operated when door is opened
and closed.
(The Entry/Exiting operates with key switch) 1. Front door switch (driver side) circuit check
SE-66
2. If all the above systems are normal, replace the BCMBCS-16
Only door mirror system dose not operated (only auto-
matic operation). Steering and door mirror sensor power supply and ground
circuit check SE-65
Only seat sliding and seat reclining operation does not
operation Sliding switch and reclining switch ground circuit check
SE-73
Only sear lifting (front and rear) operation does not opera-
tion Front lifting switch and rear lifting switch ground circuit
check SE-74
Only lumber support does not operate Lumber support circuit check
SE-90
Symptom Diagnoses / service procedure Reference
page

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AUTOMATIC DRIVE POSITIONER
Revision: 2005 July 2005 FX
4. CHECK HARNESS CONTINUITY
1. Disconnect key switch and 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 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 MONITOR, 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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2. CHECK SEAT MEMORY SWITCH
1. Turn ignition switch OFF.
2. Disconnect seat memory switch and lumber support switch connector.
3. Check continuity between seat memory switch and lumber support switch connector B158 terminal 22, 34, 35 and 61.
OK or NG
OK >> GO TO 3.
NG >> Replace seat 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, 34, 35 and seat memory switch and lumber
support switch connector B158 terminals 22, 34, 35.
3. Check continuity between automatic drive positioner control unit connector M152 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 and lumber support switch.
4. CHECK SEAT MEMORY SWITCH AND LUMBER SUPPORT SWITCH GROUND CIRCUIT
Check continuity between seat memory switch and lumber support
switch B158 terminal 61 and ground.
OK or NG
OK >> Replace driver seat control unit.
NG >> Repair or replace harness between seat memory switch and lumber support switch and ground.
Connec-
tor Terminals Condition Continuity
B158 34
61 Set switch: ON Yes
Set switch: OFF No
22 Memory switch 1: ON Yes
Memory switch 1: OFF No
35 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
61 (B/Y) – Ground : Continuity should exist.
PIIA6706E

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AUTOMATIC DRIVE POSITIONER
Revision: 2005 July 2005 FX
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 SEAT MEMORY SWITCH AND LUMBER SUPPORT SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect seat memory switch and lumber support switch connector.
3. Check voltage between seat memory switch and lumber support switch connector B158 terminal 11 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between fuse block (J/B) and
seat memory 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 23 (Y/W), 36 (Y/G) and seat memory switch and
lumber support switch connector B158 terminals 23, 36.
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 automatic drive positioned control unit and seat memory
switch and lumber support switch.
Test item Description
MEMORY SW
INDCTR The memory switch indicator is lit by receiving the drive signal.
PIIA0319E
11 (R/W) – Ground : Battery voltage
PIIA6705E
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

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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 >> Memory indicator lamp circuit is OK.
NG >> Replace seat memory switch and lumber support switch.
Uart Communication Line Circuit CheckAIS002Y8
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.
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.
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
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

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AUTOMATIC DRIVE POSITIONER
Revision: 2005 July 2005 FX
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 control unit exchanged?
Does seat memory function operate?
YES >> Replace automatic drive positioner control unit.
NG >> Replace driver seat control unit.
Lumber Support Circuit CheckAIS003C1
1. CHECK LUMBER SUPPORT SWITCH
1. Turn ignition switch OFF.
2. Disconnect seat memory switch and lumber support switch connector.
3. Check voltage between seat memory switch and lumber 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
seat memory switch and lumber support switch.
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
1 (R) – Ground: : Battery voltage
PIIA6707E