2008 INFINITI QX56 display

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:0000000001735383
Perform preliminary check. Refer to WT-5, "Preliminary Check".
Revision: March 2010 2008 QX56

WT-16
< COMPONENT DIAGNOSIS >
C1712 - C1715, C1720 - C1723, C1724 - C1727 TRANSMITTER MALFUNCTION
C1712 - C1715, C1720 - C1723, C1724 - C1727 TRANSMITTER MALFUNC-
TION
DescriptionINFOID:0000000001735384
One or more transmitters are malfunctioning internally.
DTC LogicINFOID:0000000001735385
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DRIVE VEHICLE
1. 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.
2. 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-16, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001735386
FLASH CODE NO. 31, 32, 33, 34, 41, 42, 43, 44, 45, 46, 47 OR 48 (DTC C1712, C1713, C1714,
C1715, C1720, C1721, C1722, C1723, C1724, C1725, C1726 OR C1727)
1.PERFORM ID REGISTRATION
1. Carry out ID registration of all transmitters. Refer to WT-6, "
ID Registration Procedure".
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 lamp again for fl ashing, replace malfunctioning transmitter. Refer to WT-
49, "Transmitter (Pressure Sensor)".
2. Carry out ID registration of all transmitters.
Can ID registration of all transmitters be completed?
YES >> GO TO 3
NO >> GO TO WT-14, "
Diagnosis Procedure".
DTC CONSULT-III DTC detecting condition
C1712 [CHECKSUM - ERR] - FL Checksum data from FL transmitter is malfunctioning.
C1713 [CHECKSUM - ERR] - FR Checksum data from FR transmitter is malfunctioning.
C1714 [CHECKSUM - ERR] - RR Checksum data from RR transmitter is malfunctioning.
C1715 [CHECKSUM - ERR] - RL Ch ecksum data from RL transmitter is malfunctioning.
C1720 [CODE - ERR] - FL Function code data from FL transmitter is malfunctioning.
C1721 [CODE - ERR] - FR Function code data from FR transmitter is malfunctioning.
C1722 [CODE - ERR] - RR Function code data from RR transmitter is malfunctioning.
C1723 [CODE - ERR] - RL Function code data from RL transmitter is malfunctioning.
C1724 [BATT - VOLT - LOW] - FL Battery voltage of FL transmitter drops.
C1725 [BATT - VOLT - LOW] - FR Battery voltage of FR transmitter drops.
C1726 [BATT - VOLT - LOW] - RR Battery voltage of RR transmitter drops.
C1727 [BATT - VOLT - LOW] - RL Battery voltage of RL transmitter drops.
Revision: March 2010 2008 QX56

C1712 - C1715, C1720 - C1723, C1724 - C1727 TRANSMITTER MALFUNCTION
WT-17
< COMPONENT DIAGNOSIS >
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3.DRIVE VEHICLE
1. 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.
2. 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 >> Replace malfunctioning transmitter, and perform Step 3 again.
Special Repair RequirementINFOID:0000000004291542
Perform preliminary check. Refer to WT-5, "Preliminary Check".
Revision: March 2010 2008 QX56

WT-18
< COMPONENT DIAGNOSIS >
C1716 - C1719 TRANSMITTER PRESSURE MALFUNCTION
C1716 - C1719 TRANSMITTER PRESSURE MALFUNCTION
DescriptionINFOID:0000000001735388
Air pressure data from one or more transmitters is out of range.
DTC LogicINFOID:0000000001735389
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-18, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001735390
FLASH CODE NO. 35, 36, 37 OR 38 (DTC C1716, C1717, C1718 OR C1719)
1.CHECK ALL TIRE PRESSURES
Check all tire pressures. Refer to WT-51, "
Tire".
Are there any tires with pressure of 64 psi or more?
YES >> Adjust tire pressure to specified value.
NO >> GO TO 2
2.ID REGISTRATION AND VEHICLE DRIVING
1. Carry out ID registration of all transmitters. Refer to WT-6, "
ID Registration Procedure".
2. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
3. Check all tire pressures with CONSULT-III within 15 minutes after vehicle speed becomes 17 km/h (11
MPH).
Does
“DATA MONITOR ITEM” display 64 psi or more?
YES >> Replace transmitter. Refer to WT-49, "Transmitter (Pressure Sensor)". GO TO 3.
NO >> 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 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:0000000004291543
Perform preliminary check. Refer to WT-5, "Preliminary Check".
DTCCONSULT - III DTC detecting condition
C1716 [PRESSDATA - ERR] FL Air pressure data from FL transmitter is malfunctioning.
C1717 [PRESSDATA - ERR] FR Air pressure data from FR transmitter is malfunctioning.
C1718 [PRESSDATA - ERR] RR Air pressure data from RR transmitter is malfunctioning.
C1719 [PRESSDATA - ERR] RL Air pressure data from RL transmitter is malfunctioning.
Revision: March 2010 2008 QX56

C1729 VEHICLE SPEED SIGNALWT-19
< COMPONENT DIAGNOSIS >
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C1729 VEHICLE SPEED SIGNAL
DescriptionINFOID:0000000001735392
The vehicle speed signal is not being detected by the BCM.
DTC LogicINFOID:0000000001735393
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
1. On “SELECT DIAG MODE”, select the “SELF-DIAG RESULT” screen.
2. Check display contents on "SELF DIAG RESULT" screen.
Is the
“CAN COMM CIRCUIT” displayed in the self-diagnosis display?
YES >> Refer to WT-19, "Diagnosis Procedure".
NO >> Inspection end.
Diagnosis ProcedureINFOID:0000000001735394
FLASH CODE NO. 52 (DTC C1729)
1.CHECK SELF-DIAGNOSTIC RESULTS
1. On “SELECT DIAG MODE”, select the “SELF-DIAG RESULT” screen.
2. Check display contents on "SELF DIAG RESULT" screen.
Is the
“CAN COMM CIRCUIT” displayed in the self-diagnosis display?
YES >> Perform trouble diagnosis for CAN communication system. Refer to LAN-4.
NO >> Check combination meter. Refer to MWI-5
.
Special Repair RequirementINFOID:0000000004291544
Perform preliminary check. Refer to WT-5, "Preliminary Check".
DTCCONSULT - III DTC detecting condition
C1729 VHCL SPEED SIG ERR Vehicle speed signal is in error.
Revision: March 2010 2008 QX56

WT-20
< COMPONENT DIAGNOSIS >
C1735 IGNITION SIGNAL
C1735 IGNITION SIGNAL
DescriptionINFOID:0000000004291539
The BCM monitors the IGN ON signal on the CAN line and compares it to it’s direct IGN ON signal. When
these two signals do not match, the BCM sets C1735.
DTC LogicINFOID:0000000004291540
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
1. On SELECT DIAG MODE, select the SELF-DIAG RESULT screen.
2. Check display contents on SELF DIAG RESULT screen.
Is C1735 displayed in the self-diagnosis display?
YES >> Refer to WT-20, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000004291541
MALFUNCTION CODE NO. 54 (DTC C1735)
1.CAN IGNITION SIGNAL
Check BCM IGN RLY signal with CONSULT-III. Refer to WT-21, "
Reference Value".
Are the inspection results normal with the ignition switch ON?
YES >> GO TO 2.
NO >> Check CAN system. Refer to LAN-14, "
Trouble Diagnosis Flow Chart".
2.BCM POWER SUPPLY
Check BCM power supply (ignition ON). Refer to BCS-32, "
Diagnosis Procedure".
Is the power supply with the ignition switch ON normal?
YES >> GO TO 3.
NO >> Repair power supply as necessary.
3.DRIVE VEHICLE
Clear DTC and then test drive the vehicle and check the low tire pressure warning lamp.
Does the vehicle operate without any low tire pressure warning lamp?
YES >> Inspection End.
NO >> Replace BCM. Refer to BCS-55, "
Removal and Installation".
Special Repair RequirementINFOID:0000000004291545
Perform preliminary check. Refer to WT-5, "Preliminary Check".
DTCCONSULT - III DTC detecting condition
C1735 IGNITION SIGNAL LINE - BCM/TPMS BCM has detected a mismatch between IGN ON signals.
Revision: March 2010 2008 QX56

WT-34
< SYMPTOM DIAGNOSIS >
TPMS
SYMPTOM DIAGNOSIS
TPMS
Symptom TableINFOID:0000000001735399
SymptomReference
Low tire pressure warning lamp does not come on when ignition switch is turned on. WT-35
Low tire pressure warning lamp stays on when ignition switch is turned on.WT-36
Low tire pressure warning lamp flashes when ignition switch is turned on.WT-37
Hazard warning lamps flash when ignition switch is turned on.WT-38
Tire pressure information in display unit does not exist.WT-40
ID registration cannot be completed.WT-40
Revision: March 20102008 QX56

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON
WT-35
< SYMPTOM DIAGNOSIS >
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LOW TIRE PRESSURE WARNIN G LAMP DOES NOT TURN ON
Low Tire Pressure Warning Lamp Does Not Come On When Ignition Switch Is Turned
On
INFOID:0000000001735400
DIAGNOSTIC PROCEDURE
1.SELF-DIAGNOSTIC RESULT CHECK
Using CONSULT-III, check display contents of BCM in SELF-DIAGNOSIS.
Is "CAN COMM CIRCUIT" displayed in the self-diagnosis display items?
YES >> Malfunction in CAN communication system.
NO >> GO TO 2
2.CHECK COMBINATION METER
Check combination meter operation. Refer to MWI-25, "
CONSULT-III Function (METER/M&A)".
Inspection results OK?
YES >> GO TO 3
NO >> Replace combination meter. Refer to MWI-76, "
Removal and Installation".
3.CHECK LOW TIRE PRE SSURE WARNING LAMP
Disconnect BCM harness connector.
Does the low tire pressure warning lamp activate?
YES >> Replace BCM. Refer to BCS-55, "Removal and Installation".
NO >> Check combination meter operation.
Revision: March 2010 2008 QX56