warning INFINITI QX56 2010 Factory Service Manual

INSPECTION AND ADJUSTMENTWT-5
< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
Preliminary CheckINFOID:0000000005148203
1.TIRE PRESSURE
Check all tire pressures. Refer to WT-52, "
Tire".
Do tire pressures match specification?
YES >> GO TO 2.
NO >> Adjust tire pressures to specified value.
2.LOW TIRE PRESSURE WARNING LAMP
Check low tire pressure warning lamp activation.
Does the low tire pressure warning lamp activate for one second when ignition switch is turned ON?
YES >> GO TO 3.
NO >> GO TO WT-37, "
Low Tire Pressure Warning Lamp Does Not Come On When Ignition Switch Is
Turned On".
3.BCM CONNECTOR
1. Disconnect BCM harness connectors.
2. Check terminals for damage or loose connections.
3. Reconnect harness connectors.
Are BCM connectors damaged or loose?
YES >> Repair or replace damaged parts.
NO >> GO TO 4.
4.TRANSMITTER ACTIVATION TOOL
Check battery in transmitter activation tool.
Is transmitter activation tool battery fully charged?
YES >> Perform self-diagnosis. Refer to WT-33, "Self-Diagnosis (With CONSULT-III)".
NO >> Replace battery in transmitter activation tool.
Transmitter Wake Up OperationINFOID:0000000005148204
NOTE:
This procedure must be done after replacement of a low tire pressure warning transmitter or BCM.
New replacement transmitters are provided "asleep" and must first be "woken up" using Transmitter
Activation Tool J-45295 before ID registration can be performed.
1. Turn ignition switch ON. Push the transmitter activation tool against the tire near the front left transmitter. Press the button for
5 seconds. The hazard warning lamps flash per the following
diagram.
2. Repeat this procedure for each tire in the following order: FL, FR, RR, RL. Tool number : (J-45295)
LEIA0036E
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WT-6
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
3. When the BCM finishes assigning each tire ID, the BCM flashes the hazard warning lamps and sendsflashing indicator status by CAN according to the following time chart.
4. After completing wake up of all transmitters, make sure low tire pressure warning lamp goes out.
ID Registration ProcedureINFOID:0000000005148205
ID REGISTRATION WITH TRANSMITTER ACTIVATION TOOL
NOTE:
This procedure must be done after replacement of a low tire pressure warning transmitter or BCM.
New replacement transmitters are provided "asleep" and must first be "woken up" using Transmitter
Activation Tool J-45295 before ID registration can be performed.
1. Connect CONSULT-III.
2. Select "ID REGIST" under BCM.
3. Push the transmitter activation tool against the tire near the front left transmitter. Press the button for 5 seconds.
4. Register the IDs in order from FR LH, FR RH, RR RH and RR LH. When ID registration of each wheel has been completed, the hazard warning lamps flash.
5. After completing all ID registrations, press “END” to complete the procedure.
NOTE:
Be sure to register all of the IDs in order from FR LH, FR RH, RR RH, to RR LH, or the self-diagnostic results
display will not function properly.
ID REGISTRATION WITHOUT TRANSMITTER ACTIVATION TOOL
NOTE:
WEIA0177E
Tool number : (J-45295)
LEIA0036E
Step Activation tire position Hazard warning lamp CONSULT-III
1 Front LH
2 times flashing “YET”
↓
“DONE”
2F
ro n t R H
3R ear R H
4 Rear LH
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INSPECTION AND ADJUSTMENTWT-7
< BASIC INSPECTION >
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This procedure must be done after replacement of a low tire pressure warning transmitter or BCM.
New replacement transmitters are provided "asleep" and must first be "woken up" using Transmitter
Activation Tool J-45295 before ID registration can be performed.
1. Connect CONSULT-III.
2. Select "ID REGIST" under BCM.
3. Adjust the tire pressures to the values shown in the table and drive the vehicle at 40 km/h (25 MPH) or
more for a few minutes.
4. After completing all ID registrations, press “END” to complete the procedure.
5. Inflate all tires to proper pressure. Refer to WT-52, "
Tire".
Tire position
Tire pressure kPa (kg/cm2, psi)
Front LH 250 (2.5, 36)
Front RH 230 (2.3, 33)
Rear RH 210 (2.1, 30)
Rear LH 190 (1.9, 27)
Activation tire position CONSULT-III
Front LH “YET”↓
“DONE”
Front RH
Rear RHRear LH
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WT-8
< FUNCTION DIAGNOSIS >
TPMS
FUNCTION DIAGNOSIS
TPMS
System DiagramINFOID:0000000005148206
System DescriptionINFOID:0000000005148207
BODY CONTROL MODULE (BCM)
The BCM is shown with the lower instrument panel LH removed. The
BCM reads the air pressure signal received by the remote keyless
entry receiver, and controls the low tire pressure warning lamp as
shown below. It also has a self-d iagnosis function to detect a system
malfunction.
TRANSMITTER
A sensor-transmitter integrated with a valve is installed in each
wheel, and transmits a detected air pr essure signal in the form of a
radio wave. The radio signal is received by the remote keyless entry
receiver.
REMOTE KEYLESS ENTRY RECEIVER
ALEIA0004GB
Condition Low tire pressure warning lamp
System normal On for 1 second after ignition ON
Tire less than 193 kPa (2.0 kg/cm
2 , 28 psi)
[Flat tire] ON
TPMS malfunction After key ON, flashes once per sec-
ond for 1 minute, then stays ON
LEIA0068E
WEIA0137E
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TPMSWT-9
< FUNCTION DIAGNOSIS >
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The remote keyless entry receiver is shown with the instrument
panel RH removed. The remote keyless entry receiver receives the
air pressure signal transmitted by the transmitter in each wheel.
COMBINATION METER
The combination meter receives tire pressure status from the BCM
using CAN communication. When a low tire pressure condition is
sensed by the BCM, the combination meter low tire pressure warn-
ing lamp is activated.
TIRE PRESSURE WARNING CHECK CONNECTOR
The tire pressure warning check connector can be grounded in order
to initiate self-diagnosis without a CONSULT-III. Refer to WT-34,
"Self-Diagnosis (Without CONSULT-III)". The tire pressure warning
check connector is located behind the lower portion of the instrument
panel LH.
DISPLAY UNIT
Displays the air pressure of each tire.
NOTE:
After the ignition switch is turned on, the pressure values will not be
displayed until the data of each wheel is received.
LEIA0069E
LEIA0055E
LEIA0068E
AWEIA0017GB
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WT-10
< FUNCTION DIAGNOSIS >
TPMS
System Component
INFOID:0000000005148208
AWEIA0126ZZ
1. Combination meter M23, M24 2. Display unit M93 3. Remote keyless entry receiver
M120
4. AV control unit M43, M45 5. Tire pressure warning check connector
M123 6. Transmitter
7. BCM M18, M20
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DIAGNOSIS SYSTEM (BCM)WT-11
< FUNCTION DIAGNOSIS >
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DIAGNOSIS SYSTEM (BCM)
CONSULT-III Function (BCM)INFOID:0000000005148209
CONSULT-III DIAGNOSTIC MODES
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
DESCRIPTION
During driving, the tire pressure monitoring system receives the signal transmitted from the transmitter
installed in each wheel, and turns on the low tire pressure warning lamp when the tire pressure becomes low.
The control unit (BCM) for this system has pr essure judgement and self-diagnosis functions.
FUNCTION
When the tire pressure monitoring system detects low infl ation pressure or an internal malfunction, the low tire
pressure warning lamp in the combination meter comes on. The malfunction is indicated by the low tire pres-
sure warning lamp flashing.
CONSULT-III Application to Ti re Pressure Monitoring System
× : Applicable
– : Not applicable
Data Monitor Mode
Diagnostic mode Description
Work Support Supports inspections and adjustments. Commands are transmitted to the BCM
for setting the status suitable for required operation, input/output signals are re-
ceived from the BCM and received data is displayed.
Data Monitor Displays BCM input/output data in real time.
Active Test Operation of electrical loads can be checked by sending drive signal to them.
Self Diagnostic Result Displays BCM self-diagnosis results.
CAN Diag Support Monitor The result of transmit/receive diagnosis of CAN communication can be read.
ECU Identification BCM part number can be read.
Configuration Performs BCM configuration read/write functions.
ITEMSELF-DIAGNOSTIC RESULTS DATA MONITOR
Front - Left transmitter ××
Front - Right transmitter ××
Rear - Left transmitter ××
Rear - Right transmitter ××
Warning lamp —×
Vehicle speed ××
CAN Communication ××
MONITORCONDITION SPECIFICATION
VEHICLE SPEED Drive vehicle. Vehicle speed (km/h or MPH)
AIR PRESS FL • Drive vehicle for a few minutes.
or
• Ignition switch ON and activation tool
is transmitting activation signals. Tire pressure (kPa or psi)
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL
ID REGST FL1
Ignition switch ON ID not registered: YET
ID registered: DONE
ID REGST FR1
ID REGST RR1
ID REGST RL1
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WT-12
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
NOTE:
Before performing the self-diagnosis, be sure to register the ID, or the actual malfunction location may be different from that displayed on
CONSULT-III.
Active Test
Work Support
Self-Diagnosis (Without CONSULT-III)INFOID:0000000005315450
SELF DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-III)
1. Turn ignition switch ON.
2. Ground the tire pressure warning check connector to initiate self diagnosis.
3. Compare the flashing pattern with the flash code chart below.
NOTE:
The system is normal when the low tire pressure warni ng lamp flashes 5 times and continues repeating. Self-
diagnosis results are erased automatically by turning the ignition switch “OFF”.
WARNING LAMPIgnition switch ON Low tire pressure warning lamp on: On
Low tire pressure wa
rning lamp off: Off
BUZZER Ignition switch ON Low tire pressure buzzer on: On
Low tire pressure buzzer off: Off
MONITOR
CONDITION SPECIFICATION
Test item Content
WARNING LAMP [On/Off] Activates the low tire pressure warning lamp (On/Off).
ID REGIST WARNING [On/Off] Activates the low tire pressure warning buzzer (On/Off).
FLAT TIRE WARNING [On/Off] Activates the lo w tire pressure warning buzzer (On/Off).
Test item Content
ID REGIST The identification number of the transmitter is registered in the BCM.
ID READ The identification registration number of the transmitter is read by the BCM.
Flash Code Malfunction partReference
page
15
16
17
18 Tire pressure dropped below specified value. Refer to
WT-8, "
System
Description". —
21
22
23
24 Transmitter no data (FL)
Transmitter no data (FR)
Transmitter no data (RR)
Transmitter no data (RL)
WT-14
31
32
33
34Transmitter chec
ksum error (FL)
Transmitter chec ksum error (FR)
Transmitter chec ksum error (RR)
Transmitter chec ksum error (RL) WT-16
ALEIA0050GB
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WT-14
< COMPONENT DIAGNOSIS >
C1708 - C1711 DATA FROM TRANSMITTER NOT BEING RECEIVED
COMPONENT DIAGNOSIS
C1708 - C1711 DATA FROM TRANSMITTER NOT BEING RECEIVED
DescriptionINFOID:0000000005148212
Tire pressure data for one or more transmitters is not being received by the BCM.
DTC LogicINFOID:0000000005148213
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.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 fo r 3 minutes, and then drive the vehicle at any speed for
10 minutes.
3. Check all tire pressures with CONSULT-III within 5 minutes.
Does
“DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?
YES >> Inspection End.
NO >> Refer to WT-14, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005148214
MALFUNCTION CODE NO. 21, 22, 23 OR 24 (DTC C1708, C1709, C1710 OR C1711)
1.CHECK BCM
Drive for several minutes. Check all tire pressures with CONSULT-III.
Are all tire pressures displayed as 0 kPa?
YES >> GO TO 2
NO >> GO TO 3
2.CHECK TIRE PRESSURE RECEIVER CONNECTOR
Check tire pressure receiver connector for damage or loose connection.
Is tire pressure receiver connector damaged or loose?
YES >> Repair or replace tire pressure receiver connector.
NO >> Replace BCM, then GO TO 3. Refer to BCS-59, "
Removal and Installation".
3.PERFORM ID REGISTRATION
Carry out ID registration of all transmitters. Refer to WT-6, "
ID Registration Procedure".
Is there a tire that cannot register ID?
YES >> Replace malfunctioning transmitter, then GO TO 5. Refer to WT-50, "Transmitter (Pressure Sen-
sor)".
NO >> GO TO 4
4.DRIVE VEHICLE
1. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
2. Check all tire pressures with CONSULT-III 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?
DTC CONSULT-III DTC detecting condition
C1708 [NO - DATA] - FL Data from FL transmitter cannot be received.
C1709 [NO - DATA] - FR Data from FR transmitter cannot be received.
C1710 [NO - DATA] - RR Data from RR transmitter cannot be received.
C1711 [NO - DATA] - RL Data from RL transmitter cannot be received.
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C1708 - C1711 DATA FROM TRANSMITTER NOT BEING RECEIVED
WT-15
< COMPONENT DIAGNOSIS >
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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 fo r 3 minutes, and then drive the vehicle at any speed for
10 minutes.
3. Check all tire pressures with CONSULT-III within 5 minutes.
Does
“DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?
YES >> Inspection End.
NO >> Proceed to the inspection applicable to DTC.
Special Repair RequirementINFOID:0000000005148215
Perform preliminary check. Refer to WT-5, "Preliminary Check".
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