2007 INFINITI QX56 Factory Service Manual

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Page 3001 of 3061

INFINITI QX56 2007 Factory Service Manual WT-12
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Terminal and Reference Value (BCM)
INFOID:0000000003532696
Refer to BCS-11, "Terminal and Reference Value for BCM".
ID Registration ProcedureINFOID:0000

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INFINITI QX56 2007 Factory Service Manual TROUBLE DIAGNOSIS
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This procedure must be done after replacement of a low tire pressure warning transmitter or BCM.
New replacement transmi

Page 3003 of 3061

INFINITI QX56 2007 Factory Service Manual WT-14
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
3. Select “WORK SUPPORT” on “SELECT DIAG MODE" screen,
and select "ID REGIST".
4. Adjust the tire pressure to the values shown in the table below

Page 3004 of 3061

INFINITI QX56 2007 Factory Service Manual TROUBLE DIAGNOSIS
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3. When the BCM finishes assigning each tire ID, the BCM flashes the hazard warning lamps and sends
flashing indicator s

TROUBLE DIAGNOSIS
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3. When the BCM finishes assigning each tire ID, the BCM flashes the hazard warning lamps and sends
flashing 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.
CONSULT-II Function (BCM)INFOID:0000000003532699
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
Self-DiagnosisINFOID:0000000003532700
DESCRIPTION
During driving, the low tire pressure warning 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 pressure judgement and self-diagnosis functions.
FUNCTION
When the low tire pressure warning system detects low inflation pressure or an internal malfunction, the low
tire pressure warning lamp in the combination meter comes on. The malfunction location is indicated by the
low tire pressure warning lamp flashing and the buzzer sounding.
CONSULT-II Application to Low Tire Pressure Warning System
WEIA0177E
BCM
diagnostic test itemDiagnostic mode Description
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmit-
ted to the BCM for setting the status suitable for required opera-
tion, input/output signals are received from the BCM and received
data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TESTOperation of electrical loads can be checked by sending drive sig-
nal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTRThe result of transmit/receive diagnosis of CAN communication
can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
ITEM SELF-DIAGNOSTIC RESULTS DATA MONITOR
Front - Left transmitter××
Front - Right transmitter××

Page 3005 of 3061

INFINITI QX56 2007 Factory Service Manual WT-16
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
× : Applicable
– : Not applicable
Self-Diagnostic Results Mode
NOTE:
Before performing the self-diagnosis, be sure to register the ID or else the act

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< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
× : Applicable
– : Not applicable
Self-Diagnostic Results Mode
NOTE:
Before performing the self-diagnosis, be sure to register the ID or else the actual malfunction location may be different from that dis-
played on CONSULT-II.
Data Monitor Mode
Rear - Left transmitter××
Rear - Right transmitter××
Warning lamp —×
Vehicle speed××
Buzzer (in combination meter) —×
CAN Communication×× ITEM SELF-DIAGNOSTIC RESULTS DATA MONITOR
Diagnostic item
Diagnostic item is detected when ···Reference
page Program card UED06A or
earlierProgram card UED06B or later
FLAT - TIRE - FL [C1704]
FLAT - TIRE - FR [C1705]
FLAT - TIRE - RR [C1706]
FLAT - TIRE - RL [C1707]LOW - PRESSURE - FL [C1704]
LOW - PRESSURE - FR [C1705]
LOW - PRESSURE - RR [C1706]
LOW - PRESSURE - RL [C1707]FL tire pressure 193 kPa (2.0 kg/cm
2 , 28 psi) or less
FR tire pressure 193 kPa (2.0 kg/cm2 , 28 psi) or less
RR tire pressure 193 kPa (2.0 kg/cm2 , 28 psi) or less
RL tire pressure 193 kPa (2.0 kg/cm2 , 28 psi) or less—
[NO-DATA] - FL [C1708]
[NO-DATA] - FR [C1709]
[NO-DATA] - RR [C1710]
[NO-DATA] - RL [C1711]Data from FL transmitter cannot be received.
Data from FR transmitter cannot be received.
Data from RR transmitter cannot be received.
Data from RL transmitter cannot be received.WT-20
[CHECKSUM- ERR] - FL [C1712]
[CHECKSUM- ERR] - FR [C1713]
[CHECKSUM- ERR] - RR [C1714]
[CHECKSUM- ERR] - RL [C1715]Checksum data from FL transmitter is malfunctioning.
Checksum data from FR transmitter is malfunctioning.
Checksum data from RR transmitter is malfunctioning.
Checksum data from RL transmitter is malfunctioning.WT-20
[PRESSDATA- ERR] - FL [C1716]
[PRESSDATA- ERR] - FR [C1717]
[PRESSDATA- ERR] - RR [C1718]
[PRESSDATA- ERR] - RL [C1719]Air pressure data from FL transmitter is malfunctioning.
Air pressure data from FR transmitter is malfunctioning.
Air pressure data from RR transmitter is malfunctioning.
Air pressure data from RL transmitter is malfunctioning.WT-21
[CODE- ERR] - FL [C1720]
[CODE- ERR] - FR [C1721]
[CODE- ERR] - RR [C1722]
[CODE- ERR] - RL [C1723]Function code data from FL transmitter is malfunctioning.
Function code data from FR transmitter is malfunctioning.
Function code data from RR transmitter is malfunctioning.
Function code data from RL transmitter is malfunctioning.WT-20
[BATT - VOLT - LOW] - FL [C1724]
[BATT - VOLT - LOW] - FR [C1725]
[BATT - VOLT - LOW] - RR [C1726]
[BATT - VOLT - LOW] - RL [C1727]Battery voltage of FL transmitter drops.
Battery voltage of FR transmitter drops.
Battery voltage of RR transmitter drops.
Battery voltage of RL transmitter drops.WT-20
VHCL_SPEED_SIG_ERR [C1729] Vehicle speed signal is in error.WT-21
IGN_CIRCUIT_OPEN [C1735] Vehicle ignition signal is in error.WT-22
MONITOR CONDITION SPECIFICATION
VHCL SPEED Drive vehicle. Vehicle speed (km/h or MPH)
AIR PRESS FL
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL• Drive vehicle for a few minutes.
Tire pressure (kPa or psi) or
• Ignition switch ON and activation tool
is transmitting activation signals.

Page 3006 of 3061

INFINITI QX56 2007 Factory Service Manual TROUBLE DIAGNOSIS
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NOTE:
Before performing the self-diagnosis, be sure to register the ID, or the actual malfunction location may be differ

Page 3007 of 3061

INFINITI QX56 2007 Factory Service Manual WT-18
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Preliminary Check
INFOID:0000000003532702
BASIC INSPECTION
1.CHECK ALL TIRE PRESSURES
Check all tire pressures. Refer to WT-28, "
Tire".
OK or NG
OK >>

Page 3008 of 3061

INFINITI QX56 2007 Factory Service Manual TROUBLE DIAGNOSIS
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41
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44Transmitter function code error (FL)
Transmitter function code error (FR)
Transmitter function code error (RR

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