Infiniti QX56 (Z62). Manual — part 1371
C1704, C1705, C1706, C1707 LOW TIRE PRESSURE
WT-31
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
C1704, C1705, C1706, C1707 LOW TIRE PRESSURE
DTC Logic
INFOID:0000000006225508
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION
With CONSULT-III
1.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
2.
Check the tire pressure for all wheels and adjust to the specified value. Refer to
.
3.
Perform self-diagnosis for “AIR PRESSURE MONITOR”.
Is DTC “C1704”, “C1705”, “C1706”, or “C1707” detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006225509
1.
CHECK TIRE PRESSURE
Check the air pressure of all wheels. Refer to
.
Is the inspection result normal?
YES
>> Replace the DTC-detected malfunctioning transmitter. Refer to
.
NO
>> After adjusting the air pressure, GO TO 2.
2.
CHECK TIRE PRESSURE SIGNAL
With CONSULT-III
1.
Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.
2.
Stop the vehicle.
3.
Select “DATA MONITOR” for “AIR PRESSURE MONITOR” with CONSULT-III.
4.
Within 5 minutes after vehicle stopped, check that the tire pressures match the standard value.
Is the inspection result normal?
YES
>> INSPECTION END
DTC
Display Item
Malfunction detected condition
Possible causes
C1704
LOW PRESSURE FL
Front LH wheel pressure drops to 189 kPa (1.93 kg/cm
2
, 27.4 psi)
or less
Low tire pressure
C1705
LOW PRESSURE FR
Front RH wheel pressure drops to 189 kPa (1.93 kg/cm
2
, 27.4 psi)
or less
C1706
LOW PRESSURE RR
Rear RH wheel pressure drops to 189 kPa (1.93 kg/cm
2
, 27.4 psi)
or less
C1707
LOW PRESSURE RL
Rear LH wheel pressure drops to 189 kPa (1.93 kg/cm
2
, 27.4 psi) or
less
Monitor item
Displayed value
AIR PRESS FL
Approximately equal to the indication on tire gauge value for front LH tire
AIR PRESS FR
Approximately equal to the indication on tire gauge value for front RH tire
AIR PRESS RR
Approximately equal to the indication on tire gauge value for rear RH tire
AIR PRESS RL
Approximately equal to the indication on tire gauge value for rear LH tire
WT-32
< DTC/CIRCUIT DIAGNOSIS >
C1704, C1705, C1706, C1707 LOW TIRE PRESSURE
NO
>> Repair or replace error-detected parts.
C1708, C1709, C1710, C1711 TRANSMITTER (NO DATA)
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< DTC/CIRCUIT DIAGNOSIS >
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C1708, C1709, C1710, C1711 TRANSMITTER (NO DATA)
DTC Logic
INFOID:0000000006225510
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION
With CONSULT-III
1.
Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.
2.
Stop the vehicle.
3.
Perform self-diagnosis for “AIR PRESSURE MONITOR”.
Is DTC “C1708”, “C1709”, “C1710” or “C1711” detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006225511
1.
CHECK TIRE PRESSURE SIGNAL
With CONSULT-III
1.
Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.
2.
Stop the vehicle.
3.
Select “DATA MONITOR” for “AIR PRESSURE MONITOR” with CONSULT-III.
4.
Within 5 minutes after vehicle stopped, read the values that are displayed for “AIR PRESS FL”, “AIR
PRESS FR”, “AIR PRESS RR”, and “AIR PRESS RL”.
Are all tire pressures displayed 0 kPa (psi)?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK RECEIVER CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect low tire pressure warning control unit harness connector and tire pressure receiver harness
connector.
3.
Check the continuity between low tire pressure warning control unit harness connector and tire pressure
receiver harness connector.
CHECK RECEIVER POWER CIRCUIT
DTC
Display Item
Malfunction detected condition
Possible causes
C1708
[NO DATA] FL
Tire pressure data signal from the front LH wheel
transmitter cannot be detected.
• Harness or connector connec-
tion malfunction
(Tire pressure receiver, low tire
pressure warning control unit)
• Transmitter ID registration in-
complete
• Transmitter malfunction
• Transmitter battery voltage
C1709
[NO DATA] FR
Tire pressure data signal from the front RH wheel
transmitter cannot be detected.
C1710
[NO DATA] RR
Tire pressure data signal from the rear RH wheel
transmitter cannot be detected.
C1711
[NO DATA] RL
Tire pressure data signal from the rear LH wheel
transmitter cannot be detected.
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M96
10
E53 (Front LH)
1
Existed
9
E19 (Front RH)
8
B43 (Rear LH)
7
B212 (Rear RH)
WT-34
< DTC/CIRCUIT DIAGNOSIS >
C1708, C1709, C1710, C1711 TRANSMITTER (NO DATA)
CHECK RECEIVER SIGNAL CIRCUIT
CHECK RECEIVER SIGNAL (SENSITIVITY) CIRCUIT
CHECK RECEIVER GROUND CIRCUIT
4.
Check the continuity between low tire pressure warning control unit harness connector and ground.
CHECK RECEIVER POWER CIRCUIT
CHECK RECEIVER SIGNAL CIRCUIT
CHECK RECEIVER SIGNAL (SENSITIVITY) CIRCUIT
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M96
6
E53 (Front LH)
3
Existed
5
E19 (Front RH)
4
B43 (Rear LH)
3
B212 (Rear RH)
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M96
22
E53 (Front LH)
2
Existed
21
E19 (Front RH)
20
B43 (Rear LH)
19
B212 (Rear RH)
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M96
26
E53 (Front LH)
4
Existed
25
E19 (Front RH)
24
B43 (Rear LH)
23
B212 (Rear RH)
Low tire pressure warning control unit
—
Continuity
Connector
Terminal
M96
10
Ground
Not existed
9
8
7
Low tire pressure warning control unit
—
Continuity
Connector
Terminal
M96
6
Ground
Not existed
5
4
3
Low tire pressure warning control unit
—
Continuity
Connector
Terminal
M96
22
Ground
Not existed
21
20
19
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