Infiniti M45 (Y34). Manual - part 805

TROUBLE DIAGNOSIS FOR SYMPTOMS

WT-25

C

D

F

G

H

I

J

K

L

M

A

B

WT

4. 

CHECK GROUND CIRCUIT

1.

Check continuity between tire pressure warning control unit connector M84 terminal 11 (B) and ground.

OK or NG

OK

>> Replace tire pressure warning control unit.

NG

>> Repair or replace tire pressure warning control unit

ground circuit.

Inspection 3: Warning Lamp Blinks When Ignition Switch is Turned on

AES0004D

NOTE:
If warning lamp blinking patterns are as follows, the system is normal.

Blink Mode A

●

This mode shows transmitter status is OFF-mode.
Carry out transmitter wake up operation. Refer to 

WT-15,

"Transmitter Wake Up Operation"

 .

DIAGNOSTIC PROCEDURE

1. 

CHECK CIRCUIT

1.

Disconnect tire pressure warning control unit connector M84.

2.

Check continuity between tire pressure warning control unit connector M84 terminal 8 (G) and ground.

OK or NG

OK

>> Replace tire pressure warning control unit.

NG

>> Repair or replace harness connector.

11 (B) – Ground

: Continuity should exist.

SEIA0199E

SEIA0347E

8 (G) – Ground

: Continuity should not exist.

SEIA0197E

WT-26

TROUBLE DIAGNOSIS FOR SYMPTOMS

Inspection 4: Hazard Warning Lamp Blinks When Ignition Switch is Turned on

AES0004E

DIAGNOSTIC PROCEDURE

1. 

CHECK GROUND CIRCUIT

1.

Disconnect tire pressure warning control unit connector M84.

2.

Check continuity between tire pressure warning control unit connector M84 terminal 11 (B) and ground.

OK or NG

OK

>> Replace tire pressure warning control unit.

NG

>> Repair or replace tire pressure warning control unit

ground circuit.

Inspection 5: “TIRE PRESSURE” Information in Display does not Exist

AES0004F

DIAGNOSTIC PROCEDURE

1. 

CHECK FUSE

●

Check 10A fuse [No. 21 located in the fuse block (J/B)] for tire pressure warning control unit.

OK or NG

OK

>> GO TO 2.

NG

>> Replace fuse.

2. 

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch “ON”.

2.

Check voltage between tire pressure warning control unit connector M84 terminal 4 (L/OR) and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness connector.

11 (B) – Ground

: Continuity should exist.

SEIA0199E

4 (L/OR) – Ground

: Battery voltage

SEIA0200E

TROUBLE DIAGNOSIS FOR SYMPTOMS

WT-27

C

D

F

G

H

I

J

K

L

M

A

B

WT

3. 

CHECK CONTROL INPUT SIGNAL

1.

Turn ignition switch “ON”.

2.

Check voltage between tire pressure warning control unit   connector M84 terminal 5 (Y), 6 (BR) and
ground.

OK or NG

OK

>> Check multi-function switch. 

NG

>> Check harness for open or short between tire pressure warning control unit and multi-function

switch.

Inspection 6: ID Registration can not be Completed

AES0004G

DIAGNOSTIC PROCEDURE

1. 

ID REGISTRATION (ALL)

●

Carry out ID registration of all transmitters.

●

Can ID registration of all transmitters be completed?

YES or NO

YES

>> INSPECTION END.

NO

>> Go To Inspection 1: Transmitter or Tire Pressure Warning Control Unit.

5 (Y) – Ground:

6 (BR) – Ground:

SEIA0201E

SEIA0188E

SEIA0189E

WT-28

REMOVAL AND INSTALLATION

REMOVAL AND INSTALLATION

PFP:00000

Transmitter

AES0004H

REMOVAL

1.

Deflate tire. Unscrew transmitter retaining nut and allow transmitter to fall into tire.

2.

Gently bounce tire so that transmitter falls to bottom of tire.
Place on tire changing machine and break both tire beads
ensuring that the transmitter remains at the bottom of the tire.

3.

Turn tire so that valve hole is at bottom and bounce so that
transmitter is near valve hole. Carefully lift tire onto turntable and
position valve hole (and transmitter) 270 degree from mounting/
dismounting head.

4.

Lubricate tire well and remove first side of the tire. Reach inside
the tire and remove the transmitter. Remove second side of tire.

INSTALLATION

1.

Put first side of tire onto rim.

2.

Mount transmitter on rim and tighten nut.

SEIA0047E

SEIA0048E

SEIA0049E

SEIA0203E