Nissan Xterra. Manual - part 719

WT-38

< SYMPTOM DIAGNOSIS >

TPMS

SYMPTOM DIAGNOSIS

TPMS

Symptom Table

INFOID:0000000009483094

Symptom

Reference

Low tire pressure warning lamp does not come on when ignition switch is turned ON.

WT-39

Low tire pressure warning lamp stays on when ignition switch is turned ON.

WT-40

Low tire pressure warning lamp flashes when ignition switch is turned ON.

WT-41

Hazard warning lamps flash when ignition switch is turned ON.

WT-42

ID registration cannot be completed.

WT-43

NVH troubleshooting chart.

WT-44

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON

WT-39

< SYMPTOM DIAGNOSIS >

C

D

F

G

H

I

J

K

L

M

A

B

WT

N

O

P

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON

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

INFOID:0000000009483095

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.

SELF-DIAGNOSTIC RESULT CHECK

Using CONSULT, check display contents of BCM in SELF-DIAGNOSIS.
Is CAN COMM CIRCUIT displayed in the self-diagnosis display items?

YES

>>  Malfunction in CAN communication system. Refer to 

LAN-14, "Trouble Diagnosis Flow Chart"

.

NO

>> GO TO 2

2.

CHECK COMBINATION METER

Check combination meter operation. Refer to 

MWI-25, "CONSULT Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace combination meter. Refer to 

MWI-84, "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-50, "Removal and Installation"

.

NO

>> Check combination meter operation. Refer to 

MWI-24, "Diagnosis Description"

.

WT-40

< SYMPTOM DIAGNOSIS >

LOW TIRE PRESSURE WARNING LAMP STAYS ON

LOW TIRE PRESSURE WARNING LAMP STAYS ON

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

INFOID:0000000009483096

DIAGNOSTIC PROCEDURE

1.

BCM CONNECTORS

1. Turn ignition switch OFF.

2. Disconnect BCM harness 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 

BCS-28, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-50, "Removal and Installation"

.

NO

>> Repair BCM circuits.

LOW TIRE PRESSURE WARNING LAMP BLINKS

WT-41

< SYMPTOM DIAGNOSIS >

C

D

F

G

H

I

J

K

L

M

A

B

WT

N

O

P

LOW TIRE PRESSURE WARNING LAMP BLINKS

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

INFOID:0000000009483097

Regarding Wiring Diagram information, refer to 

WT-35, "Wiring Diagram"

.

NOTE:

If low tire pressure warning lamp flashes as shown, the system is normal.

Flash Mode A

• This mode shows transmitter status is OFF-mode.

Carry out transmitter wake up operation. Refer to 

WT-6, "Work

Procedure"

.

DIAGNOSTIC PROCEDURE

1.

CHECK BCM CONNECTORS

1. Turn ignition switch OFF.

2. Disconnect BCM harness 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.

CHECK TIRE PRESSURE WARNING CHECK CONNECTOR CIRCUIT

Check continuity between BCM harness connector M18 terminal 15 and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-50, "Removal and Installa-

tion"

.

NO

>> Repair circuit for short to ground.

SEIA0347E

Continuity should not exist.

ALEIA0014ZZ