Nissan Murano Z51. Manual - part 1525

WT-38

< DTC/CIRCUIT DIAGNOSIS >

TIRE PRESSURE WARNING CHECK SWITCH

TIRE PRESSURE WARNING CHECK SWITCH

Component Function Check

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1.

CHECK THE ILLUMINATION OF THE LOW TIRE PRESSURE WARNING LAMP

1.

Turn the ignition switch ON. 

CAUTION:

Never start the engine.

2.

Short-circuit the tire pressure warning check switch connector terminal to the ground.

3.

Check that the low tire pressure warning lamp blinking.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis. Refer to 

WT-38, "Diagnosis Procedure"

.

Diagnosis Procedure

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1.

CHECK TIRE PRESSURE WARNING CHECK SWITCH SIGNAL

1.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

2.

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

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-95, "Exploded View"

.

NO

>> GO TO 2.

2.

CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect BCM harness connector

3.

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

4.

Check the continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Check BCM pin terminals for damage or loose connection with harness connector. If any items

are damaged, repair or replace damaged parts. Replace BCM. Refer to 

BCS-95, "Exploded

View"

.

NO

>> Repair or replace damaged parts.

Tire pressure warning check switch

—

Voltage (Approx.)

Connector

Terminal

M19

1

Ground

11.8 V

BCM

Tire pressure warning check switch

Continuity

Connector

Terminal

Connector

Terminal

Existed

M123

149

M19

1

BCM

—

Continuity

Connector

Terminal

M123

149

Ground

Not existed

LOW TIRE PRESSURE WARNING LAMP

WT-39

< DTC/CIRCUIT DIAGNOSIS >

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LOW TIRE PRESSURE WARNING LAMP

Component Function Check

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1.

CHECK THE ILLUMINATION OF THE LOW TIRE PRESSURE WARNING LAMP

Check that the low tire pressure warning lamp is turned OFF after illuminating for approximately 1 second,
when the ignition switch is turned ON.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Perform trouble diagnosis. Refer to 

WT-39, "Diagnosis Procedure"

. 

Diagnosis Procedure

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1.

POWER SUPPLY AND GROUND CIRCUIT

Check power supply and ground circuit. Refer to 

WT-40, "Diagnosis Procedure"

. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts.

2.

PERFORM SELF-DIAGNOSIS

With CONSULT-III

Perform “SELF-DIAG RESULTS” in “AIR PRESSURE MONITOR” of “BCM”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

MWI-76, "DTC Index"

. 

NO

>> GO TO 3.

3.

CHECK LOW TIRE PRESSURE WARNING LAMP SIGNAL

With CONSULT-III

1.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

2.

Perform “DATA MONITOR” in “AIR PRESSURE MONITOR” of “BCM”.

3.

Select “BCM” in “DATA MONITOR”, and check that the low tire pressure warning lamp is turned OFF after
illuminating for approximately 1 second, when the ignition switch is turned ON.

Is the inspection result normal?

YES

>> Check the combination meter. Refer to 

MWI-6, "METER SYSTEM : System Description"

.

NO

>> Replace the BCM. Refer to 

BCS-95, "Exploded View"

. 

WT-40

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

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1.

POWER SUPPLY SYSTEM CHECK

1.

Turn the ignition switch OFF.

2.

Disconnect the BCM harness connector.

3.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

4.

Check the voltage between the BCM harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts.

2.

GROUND SYSTEM INSPECTION

1.

Turn the ignition switch OFF.

2.

Check the continuity between the BCM harness connector and the ground.

Is the inspection result normal?

YES

>> • Check the 10 A fuse [No. 10 in fuse block (J/B)].

• Check the 40 A fusible link [No. L in fuse block].

NO

>> Repair or replace damaged parts.

BCM

—

Voltage

Connector

Terminal

M118

1

Ground

Battery voltage

M119

11

BCM

—

Continuity

Connector

Terminal

M119

13

Ground

Existed

TPMS

WT-41

< SYMPTOM DIAGNOSIS >

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SYMPTOM DIAGNOSIS

TPMS

Symptom Table 

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LOW TIRE PRESSURE WARNING LAMP SYMPTOM CHART