2008 INFINITI FX35 warning

WT-28
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Transmitter or Control Unit (BCM)INFOID:0000000001327589
MALFUNCTION CODE NO. 21, 22, 23 OR 24
1.CHECK CONTROL UNIT
 Drive for several minutes. Check all tire pr essures with CONSULT-III “DATA MONITOR ITEM”.
Are all tire pressures displayed 0 kPa?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK REMOTE KEYLESS EN TRY RECEIVER CONNECTOR
1. Disconnect remote keyless entry receiver harness connector M98.
2. Check terminals for damage or loose connection.
3. Reconnect harness connector.
OK or NG
OK >> Replace BCM refer to BCS-13, "Removal and Installation of BCM", then GO TO 3.
NG >> Repair or replace remote keyless entry receiver harness connector.
3.ID REGISTRATION
 Perform ID registration of all transmitters.
Is there any tire that ID can not be registered to?
YES >> Replace transmitter of the tire, then GO TO 5.
NO >> GO TO 4.
4.VEHICLE DRIVING
 Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping. Check all tire pressures with CONSULT-III “DATA MONITOR ITEM” within 15 minutes after vehicle speed
becomes 17 km/h (11 MPH).
Does
“DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?
YES >> INSPECTION END
NO >> GO TO 5.
5.ID REGISTRATION AND VEHICLE DRIVING
1. Perform ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more fo r 3 minutes, and then drive the vehicle at any speed for
10 minutes. Then check all tire pressures with CO NSULT-III “DATA MONITOR ITEM” within 5 minutes.
Does
“DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?
YES >> INSPECTION END
NO >> Go to the inspection applicable to DTC.
Transmitter - 1INFOID:0000000001327590
MALFUNCTION CODE NO. 31, 32, 33, 34, 41, 42, 43, 44, 45, 46, 47 OR 48
1.ID REGISTRATION (CORRECTION OF TRANSMITTER LOCATION)
1. Perform ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more fo r 3 minutes, and then drive the vehicle at any speed for
10 minutes.
>> GO TO 2.
2.REPLACE TRANSMITTER
1. Check low tire pressure warning condition again, replace malfunctioning transmitter.
2. Perform ID registration of all transmitters.
Can ID registration of all transmitters be completed?
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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
WT-29
< SERVICE INFORMATION >
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YES >> GO TO 3.
NO >> Go to the inspection 1. Refer to WT-28, "
Transmitter or Control Unit (BCM)".
3.VEHICLE DRIVING
 Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive the vehicle at any speed for 10
minutes. Then check all tire pressures with CO NSULT-III “DATA MONITOR ITEM” within 5 minutes.
Does
“DATA MONITOR ITEM” displayed tire pressure as normal without any warning lamp?
YES >> INSPECTION END.
NO >> Replace malfunctioning transmitter, and perform “Step 3” again.
Transmitter - 2INFOID:0000000001327591
MALFUNCTION CODE NO. 35, 36, 37 OR 38
1.CHECK ALL TIRE PRESSURES
 Check all tire pressures. Refer to WT-35, "
Tire".
Are there any tires whose pressure is
“64 psi” or more?
YES >> Adjust tire pressure to specified value.
NO >> GO TO 2.
2.VEHICLE DRIVING
1. Perform ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
Check all tire pressures with CONSULT-III “DATA MO NITOR ITEM” within 15 minutes after vehicle speed
become 17 km/h (11 MPH).
>> Replace transmitter with new one if “DATA MO NITOR ITEM” displayed 64 psi or more. Then GO
TO 3.
3.ID REGISTRATION AND VEHICLE DRIVING
1. Perform ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more fo r 3 minutes, and then drive the vehicle at any speed for
10 minutes. Then check all tire pressures with CONS ULT-III “DATA MONITOR ITEM” within 5 minutes.
Does
“DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?
YES >> INSPECTION END
NO >> Go to the inspection applicable to DTC.
Vehicle Speed SignalINFOID:0000000001327592
MALFUNCTION CODE NO. 52
1.CHECK SELF-DIAGNOSIS RESULTS
1. Select “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Check display contents in self-diagnostic results.
Is
“CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES >> Malfunction in CAN communication system. Go to LAN-43, "CAN System Specification Chart".
NO >> No malfunction. Check combination meter refer to DI-5, "
System Description".
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WT-30
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
TROUBLE DIAGNOSIS FOR SYMPTOMS
Low Tire Pressure Warning Lamp Does Not Come On When Ignition Switch Is Turned
On
INFOID:0000000001327593
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
1. Select “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Check display contents in self-diagnostic results.
Is
“CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES >> Malfunction in CAN communication system. Go to LAN-43, "CAN System Specification Chart".
NO >> No malfunction. GO TO 2.
2.CHECK COMBINATION METER
 Check combination meter function.
OK or NG
OK >> GO TO 3.
NG >> Check combination meter. Refer to DI-5, "
System Description".
3.CHECK LOW TIRE PRESSURE WARNING LAMP
 Disconnect BCM harness connectors M3 and M4.
Does the warning lamp activate?
YES >> Replace BCM. Refer to BCS-13, "Removal and Installation of BCM".
NO >> Check combination meter and repair or replace.
Low Tire Pressure Warning Lamp Stays On When Ignition Switch Is Turned On
INFOID:0000000001327594
DIAGNOSTIC PROCEDURE
1.CHECK CONNECTOR
1. Disconnect BCM harness connectors M3 and M4.
2. Check terminals for damage or loose connections.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2.CHECK POWER SUPPLY CIRCUIT (BATTERY)
Make sure voltage between BCM harness connector M4 and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.
3.CHECK POWER SUPPLY CIRCUIT (IGN)
1. Turn ignition switch ON.
Te r m i n a l Vol tag e
(+) (–)
42, 55 Ground 12V
SEIA0435E
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TROUBLE DIAGNOSIS FOR SYMPTOMSWT-31
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2. Make sure voltage between BCM harness connector M3 and ground.
OK or NG
OK >> GO TO 4.
NG >> Check BCM power supply circuit for open or short.
4.CHECK GROUND CIRCUIT
 Check continuity between BCM harness connector M4 and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installa-
tion of BCM".
NG >> Repair or replace BCM ground circuit.
Low Tire Pressure Warning Lamp Blin ks When Ignition Switch Is Turned On
INFOID:0000000001327595
NOTE:
If warning lamp blink below, the system is normal.
Blink Mode A
 This mode shows transmitter status is OFF-mode.
Perform transmitter wake up operation. Refer to WT-20, "
Transmit-
ter Wake Up Operation".
DIAGNOSTIC PROCEDURE
1.CHECK CONNECTOR
1. Disconnect BCM harness connector M3.
2. Check terminals for damage or loose connections.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2.CHECK TIRE PRESSURE WA RNING CHECK SWITCH CIRCUIT
Te r m i n a l
Voltag e
(+) (–)
38 Ground 12V
SEIA0436E
Te r m i n a l Continuity
(+) (–)
49, 52 Ground Yes
SEIA0610E
SEIA0347E
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WT-32
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
 Check continuity between BCM harness connector M3 andground.
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installa-
tion of BCM".
NG >> Repair or replace harness connector.
Run-Flat Tire Warning Lamp Stays On When Ignition Switch Is Turned OnINFOID:0000000001327596
DIAGNOSTIC PROCEDURE
1.CHECK ALL TIRE PRESSURES
 Check all tire pressures. Refer to WT-35, "
Tire".
OK or NG
OK >> Check combination meter. Refer to DI-5.
NG >> Adjust tire pressure to specified value or change the tires.
Turn Signal Lamp Blinks When Ignition Switch Is Turned OnINFOID:0000000001327597
DIAGNOSTIC PROCEDURE
1.CHECK TIRE PRESSURE WARNI NG CHECK SWITCH CIRCUIT
 Check continuity between BCM harness connector M3 and ground.
OK or NG
OK >> Check turn signal lamp operation. Refer to LT-78, "Sys-
tem Description".
NG >> Repair or replace harness connector.
ID Registration Ca nnot Be CompletedINFOID:0000000001327598
DIAGNOSTIC PROCEDURE
1.ID REGISTRATION (ALL)
 Perform ID registration of all transmitters.
Can ID registration of all transmitters be completed?
YES >> INSPECTION END
NO >> Go to WT-28
.
Te r m i n a l
Continuity
(+) (–)
15 Ground No
SEIA0438E
Te r m i n a l Continuity
(+) (–)
15 Ground No
SEIA0438E
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PRECAUTIONWW-3
< SERVICE INFORMATION >
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SERVICE INFORMATION
PRECAUTION
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612916
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Procedur e without Cowl Top CoverINFOID:0000000001612917
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
PIIB3706J
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