Infiniti G37 Coupe. Manual - part 1410

WT-12

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

NOTE:
When the low tire pressure warning lamp blinks 5 Hz and continues repeating it, the system is normal.

JPEIC0030GB

Blinking 

pattern

Items

Diagnostic items detected when···

Check item

15

Tire pressure value (Front LH)

Front LH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

–

16

Tire pressure value (Front RH)

Front RH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

17

Tire pressure value (Rear RH)

Rear RH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

18

Tire pressure value (Rear LH)

Rear LH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

21

Transmitter no data (Front LH)

Data from front LH transmitter can not be receive.

WT-17

22

Transmitter no data (Front RH)

Data from front RH transmitter can not be receive.

23

Transmitter no data (Rear RH)

Data from Rear RH transmitter can not be receive.

24

Transmitter no data (Rear LH)

Data from Rear LH transmitter can not be receive.

31

Transmitter checksum error 
(Front LH)

Checksum data from front LH transmitter is malfunctioning.

WT-20

32

Transmitter checksum error 
(Front RH)

Checksum data from front RH transmitter is malfunctioning.

33

Transmitter checksum error 
(Rear RH)

Checksum data from rear RH transmitter is malfunctioning.

34

Transmitter checksum error 
(Rear LH)

Checksum data from rear RH transmitter is malfunctioning.

35

Transmitter pressure data error 
(Front LH)

Air pressure data from front LH transmitter is malfunction.

WT-23

36

Transmitter pressure data error 
(Front RH)

Air pressure data from front RH transmitter is malfunction.

37

Transmitter pressure data error 
(Rear RH)

Air pressure data from rear RH transmitter is malfunction.

38

Transmitter pressure data error 
(Rear LH)

Air pressure data from rear LH transmitter is malfunction.

41

Transmitter function code error 
(Front LH)

Function code data from front LH transmitter is malfunction.

WT-25

42

Transmitter function code error 
(Front RH)

Function code data from front RH transmitter is malfunction.

43

Transmitter function code error 
(Rear RH)

Function code data from rear RH transmitter is malfunction.

44

Transmitter function code error 
(Rear LH)

Function code data from rear LH transmitter is malfunction.

DIAGNOSIS SYSTEM (BCM)

WT-13

< FUNCTION DIAGNOSIS >

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NOTE: 

• 182.7 kPa (1.9 kg/cm

2

, 26 psi): Standard air pressure is for 230 kPa (2.3 kg/cm

2

,33 psi) vehicles.

• 189.6 kPa (1.9 kg/cm

2

, 27 psi): Standard air pressure is for 240 kPa (2.4 kg/cm

2

, 35 psi) vehicles.

ERASE SELF-DIAGNOSIS

With CONSULT-III

1.

Perform applicable inspection of malfunctioning item and then repair or replace. 

2.

Turn ignition switch “ON” and select “SELF-DIAG RESULTS” mode for “AIR PRESSURE MONITOR” with
CONSULT-III.

3.

Touch “ERASE” on CONSULT-III screen to erase memory.

Without CONSULT-III

• In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is

stored into the control unit as necessary during use by the user. This memory is not erased no matter how
many times the ignition switch is turned “ON” and“OFF”.

• However, this information is erased by turning ignition switch “OFF” after performing self-diagnostic or by

erasing the memory using the CONSULT-III.

AIR PRESSURE MONITOR : CONSULT-III Function (BCM - AIR PRESSURE MONI-
TOR)

INFOID:0000000001686954

WORK SUPPORT MODE

ID Read

The registered ID number is displayed.

ID Regist

Refer to 

WT-5, "ID REGISTRATION PROCEDURE : Special Repair Requirement"

.

SELF-DIAG RESULTS MODE

Operation Procedure

Refer to 

WT-77, "DTC Index"

.

DATA MONITOR MODE

Screen of data monitor mode is displayed.
NOTE:
When malfunction is detected, CONSULT-III perform REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.

45

Transmitter battery voltage low 
(Front LH)

Battery voltage of front LH transmitter drops.

WT-28

46

Transmitter battery voltage low 
(Front RH)

Battery voltage of front RH transmitter drops.

47

Transmitter battery voltage low 
(Rear RH)

Battery voltage of rear RH transmitter drops.

48

Transmitter battery voltage low 
(Rear LH)

Battery voltage of rear LH transmitter drops.

52

Vehicle speed signal error

Speed signal is not detected.

WT-31

53

BCM failure about TPMS

Tire pressure monitoring system malfunction in BCM

WT-32

No blinking

Tire pressure warning check 
switch

Tire pressure warning switch circuit is open.

–

Blinking 

pattern

Items

Diagnostic items detected when···

Check item

WT-14

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

Display item list

NOTE:
Before performing the self-diagnosis, be sure to register the ID, or erase the actual malfunction location may
be different from that displayed on CONSULT-III.

ACTIVE TEST MODE

NOTE:
Before performing the self-diagnosis, be sure to register the ID, or erase the actual malfunction may be differ-
ent from that displayed on CONSULT-III.

TEST ITEM LIST

Monitor

Condition

Specification

AIR PRESS FL
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL

• Drive vehicle for a few minutes.

                           or

• Ignition switch ON and activation tool is trans-

mitting activation signals.

Tire pressure (kPa or Psi)

ID REGST FL
ID REGST FR
ID REGST RR
ID REGST RL

Ignition switch ON

Registration ID : Green
No registration : Red

WARNING LAMP

Low tire pressure warning lamp on: ON
Low tire pressure warning lamp off: OFF

BUZZER

Buzzer in combination meter on: ON
Buzzer in combination meter off: OFF

Test item

Content

WARNING LAMP

This test is able to check to check that the low tire pressure warning lamp turns on.

ID REGIST WARNING

This test is able to check to check that the buzzer sounds or the low tire pressure warning lamp 
turns on.

RUN FLAT/T WARN BUZZER

This test is able to check to check that the buzzer sounds. 

FLASHER

This test is able to check to check that each turn signal lamp turns on.

HORN

This test is able to check to check that the horn sounds.

C1704, C1705, C1706, C1707 LOW TIRE PRESSURE

WT-15

< COMPONENT DIAGNOSIS >

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COMPONENT DIAGNOSIS

C1704, C1705, C1706, C1707 LOW TIRE PRESSURE

Description

INFOID:0000000001686955

When the tire pressure monitoring system detects low inflation pressure, the low tire pressure warning lamps
in the combination meter comes on.

DTC Logic

INFOID:0000000001686956

DTC DETECTION LOGIC

NOTE: 

• 182.7 kPa (1.9 kg/cm

2

, 26 psi): Standard air pressure is for 230 kPa (2.3 kg/cm

2

, 33 psi) vehicles.

• 189.6 kPa (1.9 kg/cm

2

, 27 psi): Standard air pressure is for 240 kPa (2.4 kg/cm

2

, 35 psi) vehicles.

DTC CONFIRMATION PROCEDURE

1.

CHECK ID REGISTRATION AND VEHICLE DRIVING

With CONSULT-III

Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive the vehicle at any speed for 10
minutes. Then check all tire pressure with CONSULT-III “DATA MONITOR” within 5 minutes.

Does “DATA MONITOR” displayed the standardized value without turning low tire pressure warning lamp ON?

YES

>> INSPECTION END

NO

>> Go to diagnosis procedure. Refer to 

WT-15, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001686957

1.

ADJUST TIRE AIR PRESSURE

1.

Adjust all tire air pressures. Refer to 

WT-98, "Tire"

.

2.

Check all tire air pressures.

Does all tire pressure data meet the specification?

YES

>> GO TO 2.

NO

>> Inspect or replace the tire or wheels and adjust the tire pressure to the specification.

2.

CHECK AIR PRESSURE SIGNAL

Drive at a speed of 40 km/h (25 MPH) or more 3 minutes, and then drive the vehicle at any speed for 10 min-
utes. Then check all tire pressure with CONSULT-III “DATA MONITOR” within 5 minutes.

DTC number

Trouble diagnosis 

name

DTC detecting condition

Possible cause

C1704

LOW PRESSURE FL

Front LH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

Tire pressure is low

C1705

LOW PRESSURE FR

Front RH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

C1706

LOW PRESSURE RR

Rear RH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

C1707

LOW PRESSURE RL

Rear LH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

Monitored item

Condition

Display value

AIR PRESS FL

Start engine and drive at 40 km/h (25 MPH) or more for 
several minutes.

Approximately equal to the indication on vehicle 
information display.

AIR PRESS FR

AIR PRESS RR

AIR PRESS RL