Nissan Sentra. Instruction — part 934

WT-38

< SYMPTOM DIAGNOSIS >

LOW TIRE PRESSURE WARNING LAMP

Diagnosis

items

Symptom

(Power switch ON)

Low tire pressure warning lamp

Cause

Action

Low tire pres-
sure warning
lamp

The low tire pres-
sure warning lamp
illuminates for 1
second, then turns
OFF.

Wake-up operation for
all tire pressure sensors
at wheels is completed.

No system malfunctions

The low tire pres-
sure warning lamp
repeats blinking
ON for 2 seconds
and OFF for 0.2
seconds.

Wake-up operation for
all tire pressure sensors
at wheels is not complet-
ed.

Perform the ID registration
for all tire pressure sensors
at wheels. Refer to

WT-22,

"Work Procedure"

.

The low tire pres-
sure warning lamp
blinks once.

The front left tire pres-
sure sensor is not acti-
vated.

Perform the ID registration
for the tire pressure sensor
at front left wheel. Refer to

WT-22, "Work Procedure"

.

The low tire pres-
sure warning lamp
repeats blinking
twice.

The front right tire pres-
sure sensor is not acti-
vated.

Perform the ID registration
for the tire pressure sensor
at front right wheel. Refer
to

WT-22, "Work Proce-

dure"

.

The low tire pres-
sure warning lamp
repeats blinking
for 3 times.

The rear right tire pres-
sure sensor is not acti-
vated.

Perform the ID registration
for the tire pressure sensor
at rear right wheel. Refer to

WT-22, "Work Procedure"

.

The low tire pres-
sure warning lamp
repeats blinking
for 4 times.

The rear left tire pres-
sure sensor is not acti-
vated.

Perform the ID registration
for the tire pressure sensor
at rear left wheel. Refer to

WT-22, "Work Procedure"

.

The low tire pres-
sure warning lamp
turns ON and
stays illuminated.

Low tire pressure

Check the tire pressure for
all wheels and adjust to the
specified value. Refer to

WT-54, "Tire Air Pressure"

.

SEIA0592E

SEIA0593E

JPEIC0090GB

SEIA0595E

SEIA0596E

SEIA0597E

SEIA0598E

LOW TIRE PRESSURE WARNING LAMP

WT-39

< SYMPTOM DIAGNOSIS >

C

D

F

G

H

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J

K

L

M

A

B

WT

N

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NOTE:

If tire pressure sensor wake-up operation is not completed for two or more tire pressure sensors, the applica-

ble 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 left wheel and

rear right wheel tire pressure sensors.)

Low tire pres-
sure warning
lamp

The low tire pres-
sure warning lamp
repeats blinking at
0.5-second inter-
vals for 1 minute,
and then stays illu-
minated.

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 BCM harness con-
nector is removed.

Check the connection con-
ditions of the BCM harness
connector, and repair if
necessary.

Tire Pressure Monitor-
ing System (TPMS) mal-
function.

• Perform CONSULT self-

diagnosis. Refer to

WT-

11, "AIR PRESSURE
MONITOR : CONSULT
Function (BCM - AIR
PRESSURE MONI-
TOR)"

(with Intelligent

Key system) or

WT-13,

"AIR PRESSURE MONI-
TOR : CONSULT Func-
tion (BCM - AIR
PRESSURE MONI-
TOR)"

(without Intelligent

Key system).

• If necessary, perform tire

pressure sensor ID reg-
istration. Refer to

WT-22,

"Work Procedure"

.

Diagnosis

items

Symptom

(Power switch ON)

Low tire pressure warning lamp

Cause

Action

SEIA0788E

WT-40

< SYMPTOM DIAGNOSIS >

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON

Low Tire pessure Warning Lamp Does Not Come On When Ignition Switch Is Turned
On

INFOID:0000000009758159

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II

User Guide for additional information.

• Activate and display TPMS transmitter IDs

• Display tire pressure reported by the TPMS transmitter

• Read TPMS DTCs

• Register TPMS transmitter IDs

DIAGNOSTIC PROCEDURE

1.

PERFORM SELF DIAGNOSTIC RESULT

Perform “SELF DIAGNOSTIC RESULT”.
Is DTC “U1000” detected?

YES

>> Malfunction in CAN communication system. Refer to

LAN-16, "Trouble Diagnosis Flow Chart"

.

NO

>> GO TO 2

2.

CHECK COMBINATION METER

Check combination meter operation. Refer to

MWI-17, "CONSULT Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace combination meter. Refer to

MWI-77, "Removal and Installation"

.

3.

CHECK LOW TIRE PRESSURE WARNING LAMP

Disconnect BCM harness connector.
Does the low tire pressure warning lamp activate?

YES

>> Replace BCM. Refer to

BCS-73, "Removal and Installation"

(With Intellingent Key System) or

BCS-126, "Removal and Installation"

(Without Intellingent Key System).

NO

>> Check combination meter operation.

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF

WT-41

< SYMPTOM DIAGNOSIS >

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WT

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LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF

Low Tire Pressure Warning Lamp Stays On When Ignition Switch Is Turned On

INFOID:0000000009758160

DIAGNOSTIC PROCEDURE

1.

INSPECT BCM CONNECTOR

1. Turn ignition switch OFF.

2. Disconnect BCM connectors.

3. Check terminals for damage or loose connections.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts.

2.

BCM POWER SUPPLY AND GROUND CIRCUITS

Check BCM power supply and ground circuits. Refer to

WT-34, "WITH INTELLIGENT KEY SYSTEM : Diagno-

sis Procedure"

(with Intelligent Key system) or

WT-34, "WITHOUT INTELLIGENT KEY SYSTEM : Diagnosis

Procedure"

(without Intelligent Key system).

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-73, "Removal and Installation"

(with Intelligent Key system) or

BCS-

126, "Removal and Installation"

(without Intelligent Key system).

NO

>> Repair BCM circuits.