Infiniti M45 (Y34). Manual - part 803

TROUBLE DIAGNOSES

WT-17

C

D

F

G

H

I

J

K

L

M

A

B

WT

Data Monitor Mode

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

How to Perform Trouble Diagnosis for Quick and Accurate Repair

AES00045

INTRODUCTION

●

Before troubleshooting, verify customer complaints.

●

If a vehicle malfunction is hard to reproduce, harnesses, harness connectors or terminals may often be
malfunctioning. Hold and shake these parts by hand to make sure they are securely connected.

●

When using a circuit tester to measure voltage or resistance of each circuit, be careful not to expand con-
nector terminals. 

MONITOR

CONDITION

SPECIFICATION

VHCL SPEED SE

Drive vehicle.

Vehicle speed (km/h or MPH)

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

●

Drive vehicle for a few minutes.

Tire pressure (kPa or psi)

or 

●

Ignition switch ON and activation 
tool is transmitting activation sig-
nals. 

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

Ignition switch ON

Registration ID: DONE
No registration ID: YET

WARNING LAMP

Warning lamp on: ON
Warning lamp off: OFF

BUZZER

Buzzer in tire pressure warning control unit on: ON
Buzzer in tire pressure warning control unit off: OFF

WT-18

TROUBLE DIAGNOSES

WORK FLOW

Preliminary check:

WT-19

Self-diagnosis:

WT-16

Trouble diagnosis for symptoms:

WT-23

SEIA0100E

TROUBLE DIAGNOSES

WT-19

C

D

F

G

H

I

J

K

L

M

A

B

WT

Preliminary Check

AES00046

BASIC INSPECTION

1. 

CHECK ALL TIRES PRESSURES

●

Check all tires pressures.

OK or NG

OK

>> GO TO 2.

NG

>> Adjust tire pressure to specified value.

2. 

CHECK WARNING LAMP ACTIVATION

●

Check warning lamp activation.

●

Does warning lamp activate for 1 second when ignition switch is turned “ON”?

YES or NO

YES

>> GO TO 3.

NO

>> Check fuse and combination meter. Then repair or replace malfunctioning parts.

3. 

CHECK CONNECTOR

1.

Disconnect tire pressure warning control unit connector M84.

2.

Check terminals for damage or loose connection. 

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4. 

CHECK TRANSMITTER ACTIVATION TOOL

●

Check transmitter tool battery.

OK or NG

OK

>> Carry out self-diagnosis 

WT-16

 .

NG

>> Replace transmitter activation tool battery.

Tire pressure

: 230 kPa (2.3 kg/cm

2

 , 33 psi)

WT-20

TROUBLE DIAGNOSES

Malfunction Code/Symptom Chart

AES00047

Code/Symptom

Malfunction part

Reference 

page

15
16
17
18

Front-left tire pressure drops to 190 kPa (1.9 kg/cm

2

 , 27 psi) or less

Front-right tire pressure drops to 190 kPa (1.9 kg/cm

2

 , 27 psi) or less

Rear-right tire pressure drops to 190 kPa (1.9 kg/cm

2

 , 27 psi) or less

Rear-left tire pressure drops to 190 kPa (1.9 kg/cm

2

 , 27 psi) or less

—

21
22
23
24

Transmitter no data (front - left)
Transmitter no data (front - right)
Transmitter no data (rear - right)
Transmitter no data (rear - left)

WT-21

31
32
33
34

Transmitter checksum error (front - left)
Transmitter checksum error (front - right)
Transmitter checksum error (rear - right)
Transmitter checksum error (rear - left)

WT-21

35
36
37
38

Transmitter pressure data error (front - left)
Transmitter pressure data error (front - right)
Transmitter pressure data error (rear - right)
Transmitter pressure data error (rear - left)

WT-22

41
42
43
44

Transmitter function code error (front - left)
Transmitter function code error (front - right)
Transmitter function code error (rear - right)
Transmitter function code error (rear - left)

WT-21

45
46
47
48

Transmitter battery voltage low (front - left)
Transmitter battery voltage low (front - right)
Transmitter battery voltage low (rear - right)
Transmitter battery voltage low (rear - left)

WT-21

51

Tire pressure warning control unit

WT-22

Warning lamp does not come on 
when ignition switch is turned on.

Fuse or combination meter
Tire pressure warning control unit connector or circuit
Tire pressure warning control unit 

WT-23

Warning lamp stays on when igni-
tion switch is turned on.

Fuse or combination meter
Tire pressure warning control unit connector or circuit
Tire pressure warning control unit

WT-23

Warning lamp blinks when ignition 
switch is turned on.

Tire pressure warning control unit harness connector or circuit
Tire pressure warning control unit
Transmitter's mode OFF
ID registration not yet

WT-25

Hazard warning lamp blinks when 
ignition switch is turned on.

Tire pressure warning control unit harness connector or circuit
Tire pressure warning control unit

WT-26

“TIRE PRESSURE” information in 
display does not exist.

Fuse
Display
Tire pressure warning control unit 

WT-26

ID registration cannot be operated.

Transmitter
Antenna harness connector or circuit
Antenna

WT-27