Infiniti QX56 (Z62). Manual — part 1377

TPMS SYMPTOMS

WT-55

< SYMPTOM DIAGNOSIS >

C

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F

G

H

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J

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B

WT

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P

NOTE:
If transmitter wake-up operation is not completed for two or more transmitters, the applicable low tire pressure
warning lamp blinking patterns are displayed continuously.
(Example: Blinks once/OFF/blinks 3 times = Wake-up operation is not completed at the front LH wheel and
rear RH wheel transmitters.)

Low tire
pressure
warning
lamp

The low tire pressure
warning lamp repeats
blinking at 0.5-second
intervals for 1 minute,
and then stays illumi-
nated.

The combination meter fuse
is open or removed (or
pulled out).

Check and install the com-
bination meter fuse. If nec-
essary, replace the fuse.

The low tire pressure warn-
ing control unit harness
connector is removed.

Check the connection con-
ditions of the low tire pres-
sure warning control unit
harness connector, and re-
pair if necessary.

Tire Pressure Monitoring
System (TPMS) malfunc-
tion.

• Perform self-diagnosis.
- If necessary, perform

transmitter ID registra-
tion. Refer to

WT-29,

"Work Procedure"

.

Hazard
warning
lamp

The hazard warning
lamp does not blink
twice when the trans-
mitter is activated.

—

• The transmitter activation

tool does not activate.

• Replace the battery in the

transmitter activation
tool.

• The ignition switch is

OFF when the transmitter
wake-up operation is per-
formed.

• Turn the ignition switch

ON when performing the
transmitter wake-up op-
eration.

• The transmitter activation

tool is not used in the cor-
rect position.

• Operate the transmitter

activation tool in the cor-
rect position when per-
forming the wake-up
operation.

• The transmitter is already

waked up.

• No procedure.

Diagnosis

items

Symptom

(Ignition switch ON)

Low tire pressure warning lamp

Cause

Action

SEIA0788E

WT-56

< SYMPTOM DIAGNOSIS >

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000006225534

The low tire pressure warning lamp does not illuminate when the ignition switch is turned ON.
NOTE:
The low tire pressure warning lamp illuminates for approximately 1 second and then turns OFF when the igni-
tion switch is turned ON. This is to check that no abnormal condition is present in the tire pressure monitoring
system.
The lamp bulb may be burnt out or the tire pressure monitoring system may be malfunctioning if the low tire
pressure warning lamp does not illuminate when the ignition switch is turned ON.

Diagnosis Procedure

INFOID:0000000006225535

1.

CHECK LOW TIRE PRESSURE WARNING LAMP

Perform trouble diagnosis for the low tire pressure warning lamp. Refer to

WT-52, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Check each harness connector pin terminal for malfunction or disconnection.

NO

>> Repair or replace error-detected parts.

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF

WT-57

< SYMPTOM DIAGNOSIS >

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WT

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LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF

Description

INFOID:0000000006225536

The low tire pressure warning lamp does not turn OFF after several seconds is passed after engine starts.

Diagnosis Procedure

INFOID:0000000006225537

1.

CHECK TIRE PRESSURE

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"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Inspect or repair the tires or wheels.

2.

CHECK LOW TIRE PRESSURE WARNING LAMP

Check low tire pressure warning lamp display.

Does not low tire pressure warning lamp turn OFF?

YES

>> GO TO 3.

NO

>> INSPECTION END

3.

CHECK DTC WITH LOW TIRE PRESSURE WARNING CONTROL UNIT

With CONSULT-III

Perform self-diagnosis for “AIR PRESSURE MONITOR”.

Is any DTC detected?

YES

>> Perform the diagnosis applicable to the displayed DTC. Refer to

WT-18, "DTC Index"

.

NO

>> GO TO 4.

4.

CHECK LOW TIRE PRESSURE WARNING CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Perform the trouble diagnosis for power supply and ground circuit. Refer to

WT-51, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace low tire pressure warning control unit. Refer to

WT-65, "Removal and Installation"

.

NO

>> Repair or replace error-detected parts.

WT-58

< SYMPTOM DIAGNOSIS >

LOW TIRE PRESSURE WARNING LAMP BLINKS

LOW TIRE PRESSURE WARNING LAMP BLINKS

Description

INFOID:0000000006225538

The low tire pressure warning lamp blinks when the ignition switch is turned ON.
NOTE:
When the low tire pressure warning lamp blinks as shown in the fig-
ure after the ignition switch is turned ON, the transmitter is not wak-
ing up.

Diagnosis Procedure

INFOID:0000000006225539

1.

TRANSMITTER WAKE-UP OPERATION

Perform the transmitter wake-up. Refer to

WT-28, "Work Procedure"

.

Is the transmitter wake-up completed?

YES

>> GO TO 2.

NO

>> Perform trouble diagnosis for the transmitter. Refer to

WT-33, "Diagnosis Procedure"

.

2.

TRANSMITTER ID REGISTRATION

Perform transmitter ID registration. Refer to

WT-29, "Work Procedure"

.

Is transmitter ID registration completed?

YES

>> INSPECTION END

NO

>> Perform the self-diagnosis for “AIR PRESSURE MONITOR”. Refer to

WT-18, "DTC Index"

.

JSEIA0033GB