Infiniti QX56 (Z62). Manual - part 1366

SYSTEM

WT-11

< SYSTEM DESCRIPTION >

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• If there is no response for approximately 15 seconds or more after inflating the tires, cancel the use of the

tire inflation indicator function or move the vehicle approximately 1 m (3.2 ft) backward or forward to try
again. The air filler pressure may be weak or out of service area.

WT-12

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (LOW TIRE PRESSURE WARNING CONTROL UNIT)

DIAGNOSIS SYSTEM (LOW TIRE PRESSURE WARNING CONTROL
UNIT)

CONSULT-III Function

INFOID:0000000006225496

APPLICATION ITEMS

CONSULT-III performs the following functions in combination of data reception, instruction, and transmission
via communication lines from low tire pressure warning control unit.

*

: The following diagnosis information is erased by erasing.

• DTC

ECU IDENTIFICATION

Part number of low tire pressure warning control unit is displayed.

SELF DIAGNOSIS RESULTS

Refer to 

WT-18, "DTC Index"

. 

DATA MONITOR

ACTIVE TEST

NOTE:
After completing the work below, perform an active test.
1.

Check ID registration state and perform self-diagnosis.

2.

Erase the self-diagnosis result history.

Mode

FUNCTION DESCRIPTION

ECU IDENTIFICATION

Displays the part number of low tire pressure warning control unit.

SELF-DIAGNOSIS RESULTS

Self-diagnosis result can be quickly read.

*

DATA MONITOR

Input and output data of low tire pressure warning control unit can be read.

ACTIVE TEST

Sends command to the low tire pressure warning control unit to change output signals and check 
operation of output system.

WORK SUPPORT

Components can be quickly and accurately adjusted.

Monitor item (Unit)

Remarks

VHCL SPEED SE
[(km/h) or (MPH)]

Vehicle speed is displayed.

AIR PRESS FL

[(kPa), (kg/cm

2

) or (Psi)]

Air pressure of front LH tires is displayed.

AIR PRESS FR

[(kPa), (kg/cm

2

) or (Psi)]

Air pressure of front RH tires is displayed.

AIR PRESS RR

[(kPa), (kg/cm

2

) or (Psi)]

Air pressure of rear RH tires is displayed.

AIR PRESS RL

[(kPa), (kg/cm

2

) or (Psi)]

Air pressure of rear LH tires is displayed.

ID REGST FL1

ID registration status of front LH transmitter is displayed.

ID REGST FR1

ID registration status of front RH transmitter is displayed.

ID REGST RR1

ID registration status of rear RH transmitter is displayed.

ID REGST RL1

ID registration status of rear LH transmitter is displayed.

WARNING LAMP

Control status of low tire pressure warning lamp is displayed.

BUZZER

Control status of buzzer in combination meter by low tire pressure warning con-
trol unit is displayed.
NOTE:
Not use in TPMS, but displayed.

DIAGNOSIS SYSTEM (LOW TIRE PRESSURE WARNING CONTROL UNIT)

WT-13

< SYSTEM DESCRIPTION >

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WORK SUPPORT

Test item

Condition

Description

BUZZER

• Vehicle stopped
• The system is normal

This test is able to check to check that the buzzer operates.
NOTE:
Not use in TPMS, but displayed.

WARN LAMP

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

Item

Usage

ID REGIST

Use to ID registration. Refer to 

WT-29, "Work Procedure"

. 

WT-14

< ECU DIAGNOSIS INFORMATION >

LOW TIRE PRESSURE WARNING CONTROL UNIT

ECU DIAGNOSIS INFORMATION

LOW TIRE PRESSURE WARNING CONTROL UNIT

Reference Value

INFOID:0000000006225497

VALUES ON THE DIAGNOSIS TOOL

CAUTION:

The reference values in the table below come from the control unit calculation data. The normal values
may in some cases be displayed even though the power circuit (harness) is open or shorted.

TERMINAL LAYOUT

PHYSICAL VALUES

CAUTION:

When using circuit tester to measure voltage for inspection, be sure not to extend forcibly any con-
nector terminals.

Monitor item

Condition

Value/Status

VHCL SPEED SE

Vehicle stopped

0.00 km/h (0.00 mph)

Vehicle running

CAUTION:

Check air pressure of tire under standard condition.

Approx. equal to the indication 
on speedometer (Inside of 

±

10%)

AIR PRESS FL

Start engine and drive at 40 km/h (25 MPH) or more for 10 minutes.

Approximately equal to the indi-
cation on tire gauge value for 
front LH tire

AIR PRESS FR

Start engine and drive at 40 km/h (25 MPH) or more for 10 minutes.

Approximately equal to the indi-
cation on tire gauge value for 
front RH tire

AIR PRESS RR

Start engine and drive at 40 km/h (25 MPH) or more for 10 minutes.

Approximately equal to the indi-
cation on tire gauge value for 
rear RH tire

AIR PRESS RL

Start engine and drive at 40 km/h (25 MPH) or more for 10 minutes.

Approximately equal to the indi-
cation on tire gauge value for 
rear LH tire

ID REGST FL1

Front LH transmitter ID registered

Done

Front LH transmitter ID unregistered

Yet

ID REGST FR1

Front RH transmitter ID registered

Done

Front RH transmitter ID unregistered

Yet

ID REGST RR1

Rear RH transmitter ID registered

Done

Rear RH transmitter ID unregistered

Yet

ID REGST RL1

Rear LH transmitter ID registered

Done

Rear LH transmitter ID unregistered

Yet

WARNING LAMP

Low tire pressure warning lamp: ON

On

Low tire pressure warning lamp: OFF

Off

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