air condition INFINITI FX35 2007 Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2007, Model line: FX35, Model: INFINITI FX35 2007Pages: 4366, PDF Size: 55.42 MB
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AUTOMATIC DRIVE POSITIONER
Revision: 2006 July 2007 FX35/FX45
3. CHECK A/T DEVICE (PARK POSITION SWITCH)
Check continuity between A/T device (park position switch) connec-
tor M67 terminal 2 and 3.
OK or NG
OK >> GO TO 4.
NG >> Replace A/T device (park position switch).
4. CHECK A/T DEVICE (PARK POSITION SWITCH) GROUND HARNESS
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)NIS001VV
1. CHECK KEY SWITCH POWER SUPPRY CIRCUIT (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.
Connector Terminal Condition Continuity
M67 2 3 P position Yes
Other than P position No
PIIB9069E
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.
PIIA0298E
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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
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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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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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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
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SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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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 .................. ..... 7
SYSTEM DESCRIPTION ................................. ..... 7
TROUBLE DIAGNOSIS ......................................... ..... 8
Trouble Diagnosis Introduction ............................ ..... 8
DIAGNOSIS FUNCTION .................................. ..... 8
HOW TO PERFORM TROUBLE DIAGNOSIS
FOR QUICK AND ACCURATE REPAIR .......... ..... 8
WORK FLOW ................................................... ..... 9
Component Parts Location .................................. ... 10
Schematic ........................................................... .... 11
Wiring Diagram — SRS — .................................. ... 12
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-DIAGNOSIS RESULTS ... 19 SRS 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 ................................................ ... 45
FRONT PASSENGER AIR BAG MODULE ........... ... 46
Removal and Installation ..................................... ... 46
REMOVAL ........................................................ ... 46
INSTALLATION ................................................ ... 47
SIDE CURTAIN AIR BAG MODULE ..................... ... 48
Removal and Installation ..................................... ... 48
REMOVAL ........................................................ ... 48
INSTALLATION ................................................ ... 49
CRASH ZONE SENSOR ........................................ ... 50
Removal and Installation ..................................... ... 50
REMOVAL ........................................................ ... 50
INSTALLATION ................................................ ... 50
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS) SRS-7
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Occupant Classification System (OCS)NHS0009O
The occupant classification system identifies different size occupants, out of position occupants, and detects if
child seat is present in the front passenger seat. The occupant classification system receives inputs from the
occupant classification sensor (located inside the passenger seat cushion assembly) and belt tension sensor
(part of the passenger front seat belt assembly and located at the belt anchor location). Depending on classifi-
cation of passenger, the occupant classification system sends a signal to the diagnosis sensor unit. The diag-
nosis sensor unit uses this signal to determine full, partial, or non deployment of passenger front air bag in the
event of a collision. Depending on the signal received, the diagnosis sensor unit can disable the passenger
front air bag completely.
NOTE:
In case of customer concern, CONSULT-ll can be used to confirm the passenger air bag status (readiness).
Passenger Air Bag Status Condition NHS0009P
NOTE:
Passenger does not meet Ocuupant classification System specifications for passenger air bag activation.
Component Parts of Occupant Classification System NHS0009Q
Passenger Seatbelt Warning System NHS0009W
SYSTEM DESCRIPTION
This system warns when passenger seatbelt is not fasten.
This system is composed of the following items.
Seatbelt warning lamp.
Seatbelt buckle switch (passenger side).
Air bag diagnosis sensor unit.
Occupant classification system.
Seatbelt warning lamp is used for both driver seatbelt warning and passenger seatbelt warning.
Seatbelt warning lamp turns ON when all conditions below are met.
Driver seatbelt is fastened.
Occupant is on passenger seat.
Passenger seatbelt is not fasten.
Front Passenger Seat (Condition) PASS AIR BAG OFF Indicator
(Status) Passenger Air Bag Status
(Readiness) CONSULT-ll Display
Seat occupied OFF Active (enabled) ON
seat occupiedNOTE ON Deactivated (disabled) OFF
Seat empty OFF Deactivated (disabled) OFF
PHIA1334E
1. Occupant classification system con-
trol unit 2.
Occupant classification system sen-
sor 3. Bladder
4. Front passenger air bag OFF indica-
tor (Cutoff telltaile)
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SRS-8
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionNHS0007A
CAUTION:
Do not use electrical test equipment on any circuit related to the SRS unless instructed in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Do not repair, splice or modify the SRS wiring harness. If the harness is damaged, replace it with a
new one.
Keep ground portion clean.
DIAGNOSIS FUNCTION
The SRS self-diagnostic results can be read by using “AIR BAG” warning lamp and/or CONSULT-II.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system mal-
function through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-II are as follows:
HOW TO PERFORM TROUBLE DIAGNOSIS FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Information from Customer
WHAT..... Vehicle model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions, Symptoms
Preliminary Check
Make sure the following parts are in good order.
Battery (Refer to SC-5, "How to Handle Battery" .)
Fuse (Refer to SRS-12, "Wiring Diagram — SRS —" .)
System component-to-harness connections
User mode Diagnosis mode Display type
“AIR BAG” warning lamp X X ON-OFF operation CONSULT-II — X Monitoring
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TROUBLE DIAGNOSIS SRS-21
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Warning lamp examples
“AIR BAG” warning lamp operation — User mode
— SRS condition Reference item
No malfunction is detected.
No further action is necessary. —
The system is malfunctioning and
needs to be repaired as indicated. Go to
SRS-22, "DIAGNOSTIC
PROCEDURE 2" or SRS-29,
"DIAGNOSTIC PROCEDURE 5" .
Air bag is deployed.
Seat belt pre-tensioner is deployed. Go to
SRS-55, "
COLLISION DIAG-
NOSIS" .
Diagnosis sensor unit is malfunction-
ing.
Air bag power supply circuit is mal-
functioning.
SRS air bag warning lamp circuit is
malfunctioning. Go to
SRS-39, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn OFF" .
Diagnosis sensor unit is malfunction-
ing.
Air bag warning lamp circuit is mal-
functioning. Go to
SRS-40, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn ON" .
SHIA0011E
SHIA0012E
SHIA0013E
SHIA0014E
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TROUBLE DIAGNOSIS SRS-41
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Trouble Diagnosis: Passenger Seatbelt Warning SystemNHS0009V
1. CHECK THE SYSTEM 1
Check seatbelt warning lamp function.
Seatbelt warning lamp turns ON in the following conditions.
Driver seatbelt is fastened.
Occupant is on passenger seat.
Passenger seatbelt is not fasten.
OK or NG
OK >> GO TO 2.
NG >> Check the followings.
Harness between air bag diagnosis sensor unit and combination meter.
Seatbelt buckle switch (passenger side) circuit.
Seatbelt buckle switch (passenger side).
If these are OK, replace air bag diagnosis sensor unit.
2. CHECK THE SYSTEM 2
Check seatbelt warning lamp function.
Seatbelt warning lamp turns OFF in the following conditions.
Driver seatbelt is fastened.
Occupant is on passenger seat.
Passenger seatbelt is fastened.
OK or NG
OK >> System is OK.
NG >> Check the followings.
Seatbelt buckle switch (passenger side) circuit.
Seatbelt buckle switch (passenger side).
If these are OK, replace air bag diagnosis sensor unit.