Infiniti EX35. Manual - part 1533

WT-88

< SYMPTOM DIAGNOSIS >

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK SYMPTOM

Check symptom again.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

CHECK BCM

Check BCM input/output signal. Refer to 

WT-48, "Reference Value"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 7.

7.

CHECK BCM HARNESS CONNECTOR

Check BCM pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-84, "Removal and Installation"

.

NO

>> Repair or replace damaged parts.

LOW TIRE PRESSURE WARNING LAMP BLINKS

WT-89

< SYMPTOM DIAGNOSIS >

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LOW TIRE PRESSURE WARNING LAMP BLINKS

Description

INFOID:0000000003579760

DESCRIPTION

The low tire pressure warning lamp illuminates or blinks.
However, a check is necessary because the symptom may not be caused by a system malfunction. For exam-
ple, the transmitter may not be initialized.
NOTE:
If low tire pressure warning lamp blinks as shown in the figure, the system is normal.

Blink Mode A

• This mode shows transmitter status is in OFF- mode.

Perform transmitter wake up operation. Refer to 

WT-6, "TRANS-

MITTER WAKE UP OPERATION : Special Repair Requirement"

.

Diagnosis Procedure

INFOID:0000000003579761

1.

CHECK TIRE PRESSURE WARNING CHECK SWITCH POWER SUPPLY

1.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

2.

Check voltage between tire pressure warning check switch connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Riper or replace damaged parts.

2.

CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect BCM harness connector.

3.

Check continuity between BCM harness connector and tire pressure warning check switch connector.

4.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

JPEIC0031GB

Tire pressure warning check switch

—

Voltage (Approx.)

Connector

Terminal

M23

1

Ground

11.8 V

BCM

Tire pressure warning check switch

Continuity

Connector

Terminal

Connector

Terminal

M123

149

M23

1

Existed

BCM

—

Continuity

Connector

Terminal

M123

149

Ground

Not existed

WT-90

< SYMPTOM DIAGNOSIS >

LOW TIRE PRESSURE WARNING LAMP BLINKS

3.

CHECK BCM

Check BCM input/output signal. Refer to 

WT-48, "Reference Value"

.

Is the inspection result normal?

YES

>> Check tire pressure warning check switch. Refer to 

WT-39, "Diagnosis Procedure"

.

NO

>> Repair or replace the BCM.

TURN SIGNAL LAMP BLINKS

WT-91

< SYMPTOM DIAGNOSIS >

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TURN SIGNAL LAMP BLINKS

Description

INFOID:0000000003579762

DESCRIPTION

The turn signal lamp blinks when the ignition switch is turned ON.
The BCM connector or circuit may have a malfunction.

Diagnosis Procedure

INFOID:0000000003579763

1.

CHECK TIRE PRESSURE WARNING CHECK SWITCH POWER SUPPLY CIRCUIT

1.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

2.

Check voltage between tire pressure warning check switch connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts.

2.

CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect BCM harness connector.

3.

Check continuity between BCM harness connector and tire pressure warning check switch connector. 

4.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK SYMPTOM

Check again.

Does the turn signal lamp remain blinking?

YES

>> Check turn signal lamp operation. Refer to 

EXL-35, "FLASHER : CONSULT-III Function (BCM -

FLASHER)"

.

NO

>> INSPECTION END

Tire pressure warning check switch

—

Voltage (Approx.)

Connector

Terminal

M23

1

Ground

11.8 V

BCM

Tire pressure warning check switch

Continuity

Connector

Terminal

Connector

Terminal

Existed

M123

149

M23

1

BCM

—

Continuity

Connector

Terminal

M123

149

Ground

Not existed