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 

WT-69, "Tire Air Pres-

sure"

. 

3.

Perform self-diagnosis for “AIR PRESSURE MONITOR”.

Is DTC “C1704”, “C1705”, “C1706”, or “C1707” detected?

YES

>> Proceed to 

WT-31, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006225509

1.

CHECK TIRE PRESSURE

Check the air pressure of all wheels. Refer to 

WT-69, "Tire Air Pressure"

. 

Is the inspection result normal?

YES

>> Replace the DTC-detected malfunctioning transmitter. Refer to 

WT-66, "Removal and Installa-

tion"

.

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)

WT-33

< 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 

WT-33, "Diagnosis Procedure"

.

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