Infiniti M35/M45 Y50. Manual - part 1147

TROUBLE DIAGNOSIS FOR SYMPTOMS

WT-35

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TROUBLE DIAGNOSIS FOR SYMPTOMS

PFP:00007

Warning Lamp Does Not Come On When Ignition Switch Is Turned ON

NES000KH

1. 

CHECK SELF-DIAGNOSIS RESULTS

1.

Perform “CONSULT-II Start Procedure”. Refer to 

GI-38, "CONSULT-II Start Procedure"

 .

2.

Touch “SELF-DIAG RESULTS”.

3.

Check display contents in self-diagnostic results.

Is above displayed on self-diagnosis display?

YES

>>

●

If “CAN COMM CIRCUIT [U1000]” is displayed, print out self-diagnosis. And then, go to 

LAN-

50, "CAN System Specification Chart"

 .

●

Replace low tire pressure warning control unit if “CONTROL UNIT [CAN] [U1010]” is displayed.

NO

>> GO TO 2.

2. 

CHECK COMBINATION METER

Check combination meter function.

OK or NG

OK

>> GO TO 3.

NG

>> Check combination meter. Refer to 

DI-18, "Trouble Diagnosis"

 .

3. 

CHECK LOW TIRE PRESSURE WARNING LAMP

Disconnect low tire pressure warning control unit harness connector M19.

Does the warning lamp activate?

YES

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

WT-40, "Low Tire Pressure Warning Con-

trol Unit"

 .

NO

>> Check combination meter and repair or replace.

Warning Lamp Stay On When Ignition Switch Is Turned ON

NES000KW

1. 

CHECK ALL TIRE PRESSURES

Check all tire pressures. Refer to 

WT-41, "SERVICE DATA AND SPECIFICATIONS (SDS)"

 .

OK or NG

OK

>> Check combination meter. Refer to 

DI-5, "COMBINATION METERS"

 .

NG

>> Adjust tire pressure to specified value.

Self-diagnostic results

CAN COMM CIRCUIT [U1000]

CONTROL UNIT [CAN] [U1010]

WT-36

TROUBLE DIAGNOSIS FOR SYMPTOMS

Warning Lamp Blinks 1 Minute and Then Turns ON When Ignition Switch Is 
Turned ON

NES000KI

1. 

CHECK CONNECTOR

1.

Disconnect low tire pressure warning control unit harness connectors M19.

2.

Check terminals for damage or loose connections.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace damaged parts.

2. 

CHECK POWER SUPPLY CIRCUIT (IGN)

1.

Turn ignition switch ON.

2.

Measure voltage between low tire pressure warning control unit
harness connector M19 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check low tire pressure warning control unit power sup-

ply circuit for open or short.

3. 

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between low tire pressure warning control unit
harness connector M19 and ground.

OK or NG

OK

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

WT-40, "Low Tire Pressure Warning Control Unit"

 .

NG

>> Repair or replace low tire pressure warning control unit

ground circuit.

Terminal

Voltage

(+)

(–)

2

Ground

12 V

SEIA0656E

Terminal

Continuity

(+)

(–)

17

Ground

Yes

SEIA0657E

TROUBLE DIAGNOSIS FOR SYMPTOMS

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Warning Lamp Blinks When Ignition Switch Is Turned ON

NES000KJ

NOTE:
If warning lamp blinks below, the system is normal.
Blink Mode A

●

This mode shows transmitter status is in OFF-mode.
Perform transmitter wake up operation. Refer to 

WT-19, "Trans-

mitter Wake Up Operation"

 .

1. 

CHECK CONNECTOR

1.

Disconnect low tire pressure warning control unit harness connector M19.

2.

Check terminals for damage or loose connections.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace damaged parts.

2. 

CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT

Check continuity between low tire pressure warning control unit har-
ness connector M19 and ground.

OK or NG

OK

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

WT-40, "Low Tire Pressure Warning Control Unit"

 .

NG

>> Repair or replace harness connector.

SEIA0347E

Terminal

Continuity

(+)

(–)

5

Ground

No

SEIA0658E

WT-38

TROUBLE DIAGNOSIS FOR SYMPTOMS

Turn Signal Lamp Blinks When Ignition Switch Is Turned ON

NES000KK

1. 

CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT

Check continuity between low tire pressure warning control unit har-
ness connector M19 and ground.

OK or NG

OK

>> Check turn signal lamp operation. Refer to 

LT-212, "Sys-

tem Description"

 .

NG

>> Repair or replace harness connector.

ID Registration Can Not Be Completed

NES000KL

1. 

ID REGISTRATION (ALL)

Perform ID registration of all transmitter.

Can ID registration of all transmitters be completed?

YES

>> INSPECTION END

NO

>> GO TO 

WT-29, "Transmitter no Data"

 .

Terminal

Continuity

(+)

(–)

5

Ground

No

SEIA0658E