2007 INFINITI M35 sensor

SE-124
CLIMATE CONTROLLED SEAT
Revision: 2007 April2007 M35/M45
Terminal and Reference Value for Climate Controlled Seat Control UnitNIS0027L
Te r -
minalWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
(Approx)
2 R/Y Ignition switch power supply Input Ignition switch ON or START Battery voltage
3 B Ground — — 0
4 R/Y Ignition switch power supply Input Ignition switch ON or START Battery voltage
5G/RSeat cushion thermal electric
device power supply (HEAT)InputIgnition switch
ON or STARTClimate controlled
seat switch selectHEAT or
COOL0 – Battery
voltage
OFF 0
6G/BSeat cushion thermal electric
device power supply (COOL)InputIgnition switch
ON or STARTClimate controlled
seat switch select COOL or
HEAT 0 – Battery
voltage
OFF 0
7 B/R Blower motor ground — — 0
8 LG/R HEAT switch indicator signal OutputIgnition switch
ON or STARTClimate controlled
seat switch select HEAT Battery voltage
OFF 0
9 LG/B COOL switch indicator signal OutputIgnition switch
ON or STARTClimate controlled
seat switch select COOL Battery voltage
OFF 0
10 Y/R HEAT switch signal InputIgnition switch
ON or STARTClimate controlled
seat switch select HI HEAT 2.6 – 3.5
MID HEAT 1.6 – 2.5
LO HEAT 0.5 – 1.5
OFF 0
11 B / RClimate controlled seat switch
power supplyInput Ignition switch ON or START Battery voltage
14 V/W Blower motor power supply Input Ignition switch ON or START Battery voltage
15 W/RSeatback thermal electric device
power supply (HEAT) InputIgnition switch
ON or STARTClimate controlled
seat switch select HEAT or
COOL0 – Battery
voltage
OFF 0
16 W/BSeatback thermal electric device
power supply (COOL) InputIgnition switch
ON or STARTClimate controlled
seat switch select COOL or
HEAT 0 – Battery
voltage
OFF 0
17 R/B Blower motor speed control signal InputIgnition switch
ON or STARTClimate controlled
seat switch select HEAT or
COOL4.5 – 8.0
OFF 0
18 V Blower motor tachometer signal OutputIgnition switch
ON or STARTClimate controlled
seat switch select HEAT or
COOL4.5 – 8.0
OFF Battery voltage
20 Y/G COOL switch signal InputIgnition switch
ON or STARTClimate controlled
seat switch select HI COOL 2.6 – 3.5
MID COOL 1.6 – 2.5
LO COOL 0.5 – 1.5
OFF 0
21 GR/LSeat cushion thermal electric
device sensor ground— Ignition switch ON 0
22 GR/RSeat cushion thermal electric
device sensor signalInputBlower motor operated 0.5 – 4
Ignition switch OFF 0

CLIMATE CONTROLLED SEAT
SE-125
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Revision: 2007 April2007 M35/M45
Work FlowNIS0027M
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to SE-114, "
System Description" .
3. Perform the preliminary check. Refer toSE-126, "
Preliminary Check" .
4. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SE-126,
"Trouble Diagnoses Symptom Chart" .
5. Does climate controlled seat operate normally? YES: GO TO 6, NO: GO TO 4.
6. INSPECTION END.
23 L/RSeatback thermal electric device
sensor signalInputBlower motor operated 0.5 – 4
Ignition switch OFF 0
24 LSeatback thermal electric device
sensor ground— Ignition switch ON 0 Te r -
minalWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
(Approx)

SE-126
CLIMATE CONTROLLED SEAT
Revision: 2007 April2007 M35/M45
Trouble Diagnoses Symptom ChartNIS0027O
NOTE:
Make sure other systems using the signal of the following systems operate normally.
NOTE:

The climate controlled seat blower keep low speed for approximately 60 seconds turning the switch.

The climate controlled seat system is downed when the temperature sensor set as the seat cushion and
the seatback's thermal electric device machine detects 20 °C (68°F) or more of mutual differences of tem-
perature.
Preliminary CheckNIS0027N
1. CHECK DUCT AND FILTER
Check the following.

Is that there no foreign body in the blower motor filter.

Is that there no foreign body in the duct.
OK or NG
OK >> Preliminary check is OK.
NG >> The foreign body is removed.
Symptom Diagnoses / service procedureRefer to
page
Climate controlled seat do not operate
(Neither the driver's side nor passenger's side operate).1. Check climate controlled seat control unit power supply
circuit SE-127
All the driver side or passenger side climate controlled seat
do not operate.1. Check climate controlled seat control unit power supply
and ground circuit SE-1282. Check climate controlled seat switch power supply circuit SE-131
3. Check climate controlled seat blower motor circuit SE-141
4. Replace climate controlled seat control unitSE-114
Climate controlled seat blower motor speed cannot adjust.1. Check climate controlled seat switch power supply circuit SE-1312. Check climate controlled seat switch circuit SE-132
3. Check climate controlled seat control unit SE-143
4. Replace climate controlled seat blower motorSE-114
The climate controlled seat dose not operates when the
switch is done in HEAT or COOL.Check climate controlled seat switch circuit SE-132
When the climate controlled seat switch is turned on,
operation stops at nose (When the climate controlled seat
switch is in HEAT or COOL mode after ignition switch is
turned ON again, the motor operates).1. Check seat cushion thermal electric device sensor circuit SE-1382. Check seat cushion thermal electric device circuit SE-136
3. Check seatback thermal electric device sensor circuitSE-140
4. Check seatback thermal electric device circuit SE-137
5. Check climate controlled seat blower motor circuitSE-141
6. Replace Climate controlled seat control unitSE-114
The climate controlled seat switch indicator do not operated
with HEAT or COOL positionCheck climate controlled seat switch indicator circuit SE-134

SE-138
CLIMATE CONTROLLED SEAT
Revision: 2007 April2007 M35/M45
2. CHECK SEATBACK THERMAL ELECTRIC DEVICE HARNESS
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector and seatback thermal electric device connector.
3. Check continuity between climate controlled seat control unit
connector and seatback thermal electric device connector.
4. Check continuity between climate controlled seat control unit connector and ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Repair or replace harness between climate controlled seat control unit and seatback thermal elec-
tric device.
Check Seat Cushion Thermal Electric Device Sensor CircuitNIS0027W
1. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between climate controlled seat control unit con-
nector and ground.
OK or NG
OK >> Climate controlled seat control unit circuit is OK.
NG >> GO TO 2.
AB
Continuity Climate
controlled seat
control unit
connectorTe r m i n a lSeatback thermal
electric device
connectorTerminal
B283
(driver side)
B293
(passenger side)15 B285
(driver side)
B295
(passenger side)4
Ye s
16 6
A
GroundContinuity
Climate controlled seat
control unit connectorTerminal
B283 (driver side)
B293 (passenger side)15
No
16
PIIB6083E
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Climate
controlled seat
control unit
connectorTerminal
B283
(driver side)
B293
(passenger side)22 GroundBlower motor
operated0.5 - 4
PIIB6084E

CLIMATE CONTROLLED SEAT
SE-139
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Revision: 2007 April2007 M35/M45
2. CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SENSOR HARNESS
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector and seat cushion thermal electric device con-
nector.
3. Check continuity between climate controlled seat control unit
connector and seat cushion thermal electric device connector.
4. Check continuity between climate controlled seat control unit connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between climate controlled seat control unit and seat cushion thermal
electric device.
3. CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SENSOR
Check resistance between seat cushion thermal electric device con-
nector.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace seat cushion thermal electric device.
AB
Continuity Climate
controlled seat
control unit
connectorTerminalSeat cushion
thermal electric
device connectorTerminal
B283
(driver side)
B293
(passenger side)21 B285
(driver side)
B295
(passenger side)2
Ye s
22 1
A
GroundContinuity
Climate controlled seat
control unit connectorTerminal
B283 (driver side)
B293 (passenger side)21
No
22
PIIB6085E
Seat cushion thermal
electric device connectorTe r m i n a l Resistance (KΩ)
(Approx.)
B220
(driver side)
B258
(passenger side)12 2
PIIB6086E

SE-140
CLIMATE CONTROLLED SEAT
Revision: 2007 April2007 M35/M45
Check Seatback Thermal Electric Device Sensor Circuit NIS0027X
1. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between climate controlled seat control unit con-
nector and ground.
OK or NG
OK >> Climate controlled seat control unit circuit is OK.
NG >> GO TO 2.
2. CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR HARNESS
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector and seatback thermal electric device connector.
3. Check continuity between climate controlled seat control unit
connector and seatback thermal electric device connector.
4. Check continuity between climate controlled seat control unit connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between climate seat control unit and seatback thermal electric device.
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Climate
controlled seat
control unit
connectorTerminal
B283
(driver side)
B293
(passenger side)23 GroundBlower motor
operated0.5 - 4
PIIB6087E
AB
Continuity Climate
controlled seat
control unit
connectorTe r m i n a lSeatback thermal
electric device
connectorTerminal
B283
(driver side)
B293
(passenger side)23 B220
(driver side)
B258
(passenger side)1
Ye s
24 2
A
GroundContinuity
Climate controlled seat
control unit connectorTerminal
B283 (driver side)
B293 (passenger side)23
No
24
PIIB6088E

CLIMATE CONTROLLED SEAT
SE-141
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Revision: 2007 April2007 M35/M45
3. CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR
Check resistance between seatback thermal electric device connec-
tor.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace seatback thermal electric device.
Check Climate Controlled Seat Blower Motor CircuitNIS0027Y
1. CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR CIRCUIT HARNESS
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit and climate controlled seat blower motor connector.
3. Check continuity between climate controlled seat control unit
connector and climate controlled seat blower motor connector.
4. Check continuity between climate controlled seat control unit connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between climate controlled seat control unit and climate controlled seat
blower motor.
Seatback thermal electric
device connectorTerminal Resistance
(KΩ)
(Approx.)
B220
(driver side)
B258
(passenger side)12 2
PIIB6086E
AB
Continuity Climate
controlled seat
control unit
connectorTerminalClimate controlled
seat blower motor
connectorTerminal
B283
(driver side)
B293
(passenger side)7
B282
(driver side)
B292
(passenger side)3
Ye s 14 2
17 4
18 1
A
GroundContinuity
Climate controlled seat
control unit connectorTerminal
B283
(driver side)
B293
(passenger side)7
No 14
17
18
PIIB6089E

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION SRS
A
B
SRS
Revision: 2007 April2007 M35/M45
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ..................................... 3
Occupant Classification System Precaution ............ 3
PREPARATION ........................................................... 4
Commercial Service Tools ........................................ 4
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ....... 5
SRS Configuration ................................................... 5
Front Seat Belt Pre-Tensioner with Load Limiter ...... 6
Front Side Air Bag .................................................... 6
Side Curtain Air Bag ................................................. 6
Occupant Classification System (OCS) ................... 7
Passenger Air Bag Status Condition ........................ 7
Component Parts of Occupant Classification Sys-
tem ........................................................................... 7
Passenger Seatbelt Warning System ....................... 8
SYSTEM DESCRIPTION ...................................... 8
TROUBLE DIAGNOSIS .............................................. 9
Trouble Diagnosis Introduction ................................. 9
DIAGNOSIS FUNCTION ....................................... 9
HOW TO PERFORM TROUBLE DIAGNOSIS
FOR QUICK AND ACCURATE REPAIR ............... 9
WORK FLOW ...................................................... 10
Component Parts Location ...................................... 11
Schematic .............................................................. 12
Wiring Diagram — SRS — ..................................... 13
CONSULT-II Function ............................................ 18
DIAGNOSIS MODE FOR CONSULT-II ............... 18
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II .............................................. 18
HOW TO ERASE SELF-DIAGNOSTIC
RESULTS ............................................................ 19
Self-Diagnosis Function (Without CONSULT-II) ..... 19
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITHOUT CONSULT-II ...................................... 19
HOW TO ERASE SELF-DIAGNOSTIC
RESULTS ............................................................ 19SRS Operation Check ............................................ 20
DIAGNOSTIC PROCEDURE 1 ........................... 20
Trouble Diagnosis with CONSULT-II ...................... 22
DIAGNOSTIC PROCEDURE 2 ........................... 22
DIAGNOSTIC PROCEDURE 3 ........................... 27
DIAGNOSTIC PROCEDURE 4 (CONTINUED
FROM DIAGNOSTIC PROCEDURE 2) .............. 29
DIAGNOSTIC PROCEDURE 5 ........................... 29
Trouble Diagnosis without CONSULT-II ................. 35
DIAGNOSTIC PROCEDURE 6 ........................... 35
WARNING LAMP FLASH CODE CHART ........... 35
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn OFF ......................................................... 39
DIAGNOSTIC PROCEDURE 7 ........................... 39
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn ON ........................................................... 40
DIAGNOSTIC PROCEDURE 8 ........................... 40
Trouble Diagnosis: Passenger Seatbelt Warning
System .................................................................... 41
DRIVER AIR BAG MODULE .................................... 42
Removal and Installation ........................................ 42
REMOVAL ........................................................... 42
INSTALLATION ................................................... 43
SPIRAL CABLE ........................................................ 44
Removal and Installation ........................................ 44
REMOVAL ........................................................... 44
INSTALLATION ................................................... 44
FRONT PASSENGER AIR BAG MODULE .............. 46
Removal and Installation ........................................ 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 46
SIDE CURTAIN AIR BAG MODULE ........................ 47
Removal and Installation ........................................ 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 48
CRASH ZONE SENSOR ........................................... 49
Removal and Installation ........................................ 49
REMOVAL ........................................................... 49
INSTALLATION ................................................... 49