2005 INFINITI QX4 tire pressure

TROUBLE DIAGNOSES
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Revision: October 20052005 QX56
Hazard warning lamp flashes when
ignition switch is turned on.BCM harness connector or circuit
BCMWT-29,
"Inspection 3:
Warning
Lamp Flashes
When Ignition
Switch Is
Turned On"
“TIRE PRESSURE” information in dis-
play does not exist.Fuse
Display unit
BCM WT-31,
"Inspection 5:
“TIRE PRES-
SURE” Infor-
mation In
Display Unit
Does Not
Exist"
ID registration cannot be completed.Tran s mitte r
Remote keyless entry receiver harness connector or circuit
Remote keyless entry receiver
BCM harness connector or circuit
BCMWT-31,
"Inspection 6:
ID Registra-
tion Cannot
Be Com-
pleted"
Code/Symptom Malfunction partReference
page

WT-24
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: October 20052005 QX56
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMSPFP:00000
Inspection 1: Transmitter or Control Unit (BCM)EES001ID
MALFUNCTION CODE NO. 21, 22, 23 OR 24
1. CHECK CONTROL UNIT
Drive for several minutes. Check all tire pressures with CONSULT-II “DATA MONITOR ITEM”.
Are all tire pressures displayed as 0 kPa?
YES >> GO TO 2.
NO >> GO TO 3.
2. CHECK REMOTE KEYLESS ENTRY RECEIVER CONNECTOR
Check remote keyless entry receiver connector for damage or loose connections.
OK or NG
OK >> Replace BCM, then GO TO 3. Refer to BCS-20, "Removal and Installation of BCM" .
NG >> Repair or replace remote keyless entry receiver connector.
3. ID REGISTRATION
Carry out ID registration of all transmitters.
Is there a tire that cannot register ID?
YES >> Replace transmitter of the tire, then GO TO 5. Refer to WT-32, "Transmitter (Pressure Sensor)" .
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-II “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. Carry out ID registration of all transmitters.
2. 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 CONSULT-II “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.
Inspection 2: Transmitter - 1EES001IE
MALFUNCTION CODE NO. 31, 32, 33, 34, 41, 42, 43, 44, 45, 46, 47 OR 48
1. ID REGISTRATION (CORRECTION OF TRANSMITTER LOCATION)
1. Carry out ID registration of all transmitters.
2. 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.
>> GO TO 2.

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
WT-25
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Revision: October 20052005 QX56
2. REPLACE TRANSMITTER
1. Check low tire pressure warning lamp again for flashing, replace malfunctioning transmitter.
2. Carry out ID registration of all transmitters.
Can ID registration of all transmitters be completed?
YES >> GO TO 3.
NO >> GO TO Inspection 1. Refer to WT-24, "
Inspection 1: 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 CONSULT-II “DATA MONITOR ITEM” within 5 minutes.
Does
“DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?
YES >> Inspection End.
NO >> Replace malfunctioning transmitter, and perform Step 3 again. Refer to WT-32, "
Tran sm it ter
(Pressure Sensor)" .
Inspection 3: Transmitter - 2EES001IF
MALFUNCTION CODE NO. 35, 36, 37 OR 38
1. CHECK ALL TIRE PRESSURES
Check all tire pressures. Refer to WT-34, "
Tire"
Are there any tires with pressure of 64 psi or more?
YES >> Adjust tire pressure to specified value.
NO >> GO TO 2.
2. VEHICLE DRIVING
1. Carry out 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-II “DATA MONITOR ITEM” within 15 minutes after vehicle speed
becomes 17 km/h (11 MPH).
>> Replace transmitter with new one if “DATA MONITOR ITEM” displays 64 psi or more. Refer to
WT-32, "
Transmitter (Pressure Sensor)" . Then GO TO 3.
3. ID REGISTRATION AND VEHICLE DRIVING
1. Carry out ID registration of all transmitters.
2. 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 CONSULT-II “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.

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: October 20052005 QX56
TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
Inspection 1: Warning Lamp Does Not Come On When Ignition Switch Is Turned
On
EES001Q4
DIAGNOSTIC PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK
1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link con-
nector, then turn the ignition switch ON.
2. Select “START (NISSAN BASED VHCL)”.
3. Select "BCM" on “SELECT SYSTEM” screen.
NOTE:
If the BCM is not indicated, refer to LAN-5, "
CAN COMMUNICATION" .
4. Select "BCM C/U" on "SELECT WORK ITEM" screen, and select "SELF-DIAG RESULTS".
5. 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-5, "CAN COMMUNICATION" .
NO >> GO TO 2.
2. CHECK COMBINATION METER
Check combination meter operation.
Inspection results OK?
OK >> GO TO 3.
NG >> Check combination meter. Refer to DI-8, "
Combination Meter" .
3. CHECK LOW TIRE PRESSURE WARNING LAMP
Disconnect BCM harness connector.
Does the low tire pressure warning lamp activate?
YES >> Replace BCM. Refer to BCS-20, "Removal and Installation of BCM" .
NO >> Check combination meter and repair or replace.
Inspection 2: Warning Lamp Stays On When Ignition Switch Is Turned OnEES001II
DIAGNOSTIC PROCEDURE
1. CHECK CONNECTOR
1. Disconnect BCM harness connectors M18 and M20.
2. Check terminals for damage or loose connections.
Inspection results OK?
OK >> GO TO 2.
NG >> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: October 20052005 QX56
Inspection 3: Warning Lamp Flashes When Ignition Switch Is Turned OnEES001IJ
NOTE:
If warning lamp flashes as shown, the system is normal.
Flash Mode A

This mode shows transmitter status is OFF-mode.
Carry out transmitter wake up operation. Refer to WT-16,
"Transmitter Wake Up Operation" .
DIAGNOSTIC PROCEDURE
1. CHECK CONNECTOR
1. Disconnect BCM harness connectors M18 and M20.
2. Check terminals for damage or loose connections.
Inspection results OK?
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2. CHECK TIRE PRESSURE WARNING CHECK CONNECTOR CIRCUIT
Check continuity between BCM harness connector M18 terminal 15 (L/W) and check connector M123 terminal
1 (L/W).
OK or NG
OK >> Replace BCM. Refer to BCS-20, "Removal and Installa-
tion of BCM" .
NG >> Repair or replace harness connector.
SEIA0347E
Continuity should exist
WEIA0097E

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: October 20052005 QX56
Inspection 5: “TIRE PRESSURE” Information In Display Unit Does Not ExistEES001Q5
DIAGNOSTIC PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK
1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link con-
nector, then turn the ignition switch ON.
2. Select “START (NISSAN BASED VHCL)”.
3. Select "BCM" on “SELECT SYSTEM” screen.
NOTE:
If the BCM is not indicated, refer to LAN-5, "
CAN COMMUNICATION" .
4. Select "BCM C/U" on "SELECT WORK ITEM" screen, and select "SELF-DIAG RESULTS".
5. 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-5, "CAN COMMUNICATION" .
NO >> GO TO 2.
2. CHECK DISPLAY UNIT
Perform display unit self-diagnosis. Refer to AV- 1 0 4 , "
Self-Diagnosis Mode (NAVI)" .
Inspection results OK?
OK >> Replace BCM. Refer to BCS-20, "Removal and Installation of BCM" .
NG >> Repair or replace malfunctioning parts.
Inspection 6: ID Registration Cannot Be CompletedEES001IM
DIAGNOSTIC PROCEDURE
1. ID REGISTRATION (ALL)
Carry out ID registration of all transmitters.
Can ID registration of all transmitters be completed?
YES >> Inspection End.
NO >> Go To WT-24, "
Inspection 1: Transmitter or Control Unit (BCM)" .

WT-32
REMOVAL AND INSTALLATION
Revision: October 20052005 QX56
REMOVAL AND INSTALLATIONPFP:00000
Transmitter (Pressure Sensor)EES001IN
REMOVAL
1. Deflate tire. Unscrew transmitter retaining nut and allow transmitter to fall into tire.
2. Gently bounce tire so that transmitter falls to bottom of tire.
Place wheel and tire assembly on tire changing machine and
break both tire beads. Ensure that the transmitter remains at the
bottom of the tire while breaking the bead.
3. Turn tire so that valve hole is at bottom, and gently bounce the
tire to ensure transmitter is near valve hole. Carefully lift tire onto
turntable and position valve hole (and transmitter) 270 degrees
from mounting/dismounting head.
4. Lubricate tire well, and remove top side of tire. Reach inside the
tire and remove the transmitter.
5. Remove the second side of the tire as nornal.
INSTALLATION
1. Place first side of tire onto rim.
2. Mount transmitter on rim and tighten nut.
SEIA0047E
SEIA0048E
SEIA0049E
Transmitter nut
tightening torque: 5.5 N·m (0.56 kg-m, 49 in-lb)
WEIA0137E

WT-34
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: October 20052005 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Road WheelEES001IO
TireEES001IP
Unit: kPa (kg/cm2 , psi) Wheel typeAluminum
Maximum radial runout limitLateral mm (in) 0.3 (0.012) or less
Radial mm (in) 0.3 (0.012) or less
Maximum residual imbalanceDynamic (at rim flange) Less than 5 g (0.18 oz) (per side)
Static (at rim flange) Less than 10 g (0.35 oz)
Tire s izeAir pressure
Conventional tire Spare tire
Full size spare tire — 240 (2.4, 35)
P265/70R18 240 (2.4, 35) —