Nissan Teana J32. Manual - part 706

 

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Nissan Teana J32. Manual - part 706

 

 

BLOWER MOTOR

HAC-193

< COMPONENT DIAGNOSIS >

[WITH 7 INCH DISPLAY]

C

D

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G

H

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A

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HAC

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BLOWER MOTOR

Description

INFOID:0000000003884772

COMPONENT DESCRIPTION

Brush-less Motor

The blower motor utilizes a brush-less motor with a rotating magnet.
Quietness is improved over previous motors where the brush was
the point of contact and the coil rotated.

Blower Motor Circuit

Component Function Check

INFOID:0000000003884773

1.

CHECK OPERATION

1.

Warm up the engine.

2.

Operate the fan control dial. Check that the fan speed and indicator are switched for all fan speeds. 

Does it operate normally?

YES

>> INSPECTION END

NO

>> Perform trouble diagnosis for the blower motor. Refer to 

HAC-193, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003884774

1.

CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III

1.

Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC. 

2.

Check if any DTC is displayed in the self-diagnosis results. 

NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to 

HAC-

164, "DTC Logic"

 or 

HAC-165, "DTC Logic"

Is any DTC displayed?

YES

>> Perform the diagnosis that is applicable to the sensor and actuator. Refer to 

HAC-212, "WITH-

OUT INTELLIGENT AIR CONDITIONER SYSTEM : DTC Index"

WITHOUT INTELLIGENT AIR

CONDITIONER SYSTEM) or 

HAC-224, "WITH INTELLIGENT AIR CONDITIONER SYSTEM :

DTC Index"

 (WITH INTELLIGENT AIR CONDITIONER SYSTEM). 

NO

>> GO TO 2.

2.

CHECK WITH ACTIVE TEST OF CONSULT-III

1.

Using CONSULT-III, perform “HVAC TEST” “ACTIVE TEST” of HVAC to check each output device. Refer
to 

HAC-156, "WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : CONSULT-III Function"

 (WITH-

ZHA152H

JSIIA0999ZZ

HAC-194

< COMPONENT DIAGNOSIS >

[WITH 7 INCH DISPLAY]

BLOWER MOTOR

OUT INTELLIGENT AIR CONDITIONER SYSTEM) or 

HAC-159, "WITH INTELLIGENT AIR CONDI-

TIONER SYSTEM : CONSULT-III Function"

 (WITH INTELLIGENT AIR CONDITIONER SYSTEM).

NOTE:
Perform the ACTIVE TEST after starting the engine because the compressor is operated. 

2.

Check that the blower motor control signal changes according to each indicator signal. 

NOTE:
• Perform the inspection of each output device after starting the engine because the compressor is oper-

ated. 

• When choosing to “MODE 7”, error message is displayed but it is not malfunction.

Does it operate normally?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK POWER SUPPLY FOR BLOWER MOTOR

1.

Disconnect blower motor connector.

2.

Turn ignition switch ON.

3.

Check voltage between blower motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 7.

4.

CHECK BLOWER MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between blower motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair harness or connector.

5.

CHECK BLOWER MOTOR CIRCUIT CONTINUITY

1.

Disconnect A/C auto amp. connector.

2.

Check continuity between blower motor harness connector and A/C auto amp. harness connector.

Test item

MODE 1

MODE 2

MODE 3

MODE 4

MODE 5

MODE 6

MODE 7

Mode door position

VENT

B/L1

B/L2

AUTO FOOT

D/F

DEF

-

Intake door position

REC

REC

20% FRE

FRE

FRE

FRE

-

Air mix door position 
(driver & passenger 
side)

FULL COLD

FULL COLD

FULL HOT

FULL HOT

FULL HOT

FULL HOT

-

Blower motor duty ratio

37%

91%

65%

65%

65%

91%

-

Compressor (Magnet 
clutch)

ON

ON

OFF

OFF

ON

ON

-

(+)

(

)

Voltage

Blower motor

Connector

Terminal

M98

1

Ground

Battery voltage

Blower motor

Continuity

Connector

Terminal

M98

3

Ground

Existed

BLOWER MOTOR

HAC-195

< COMPONENT DIAGNOSIS >

[WITH 7 INCH DISPLAY]

C

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HAC

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Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

6.

CHECK A/C AUTO AMP. OUTPUT SIGNAL

1.

Reconnect blower motor connector and A/C auto amp. connector.

2.

Turn ignition switch ON.

3.

Set MODE switch to the VENT position.

4.

Check the output waveform between blower motor harness connector and ground using an oscilloscope,
while varying the fan speed from 1 to 7.

Is the inspection result normal?

YES

>> Replace the blower motor. 

NO

>> Replace the A/C auto amp. 

7.

CHECK POWER VOLTAGE OF BLOWER RELAY

1.

Turn the ignition switch OFF.

2.

Remove the blower relay. Refer to 

PG-101, "Fuse, Connector and Terminal Arrangement"

3.

Turn the ignition switch ON.

4.

Check the voltage between blower relay fuse block side terminal and ground. Refer to 

PG-101, "Fuse,

Connector and Terminal Arrangement"

 for relay terminal assignment. 

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Inspection the power supply circuit. Refer to 

PG-55, "Wiring Diagram - IGNITION POWER SUP-

PLY -"

.

8.

CHECK BLOWER RELAY

1.

Turn the ignition switch OFF.

2.

Install the blower relay. Refer to 

PG-101, "Fuse, Connector and Terminal Arrangement"

3.

Turn the ignition switch ON.

4.

Check the operating sound of blower relay. 

Blower motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M98

2

M50

32

Existed

JPIIA1025GB

(+)

(

)

Voltage

Blower relay

1

Ground

Battery voltage

3

HAC-196

< COMPONENT DIAGNOSIS >

[WITH 7 INCH DISPLAY]

BLOWER MOTOR

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Replace the blower relay. 

9.

CHECK FUSE

Check 15A fuses (Nos. 21 and 22). 
NOTE:
Refer to 

PG-101, "Fuse, Connector and Terminal Arrangement"

 for fuse location. 

Is the inspection result normal?

YES

>> Repair the harnesses or connectors.

NO

>> Replace the fuse after repairing the applicable circuit.

Component Inspection

INFOID:0000000003884775

1.

CHECK BLOWER MOTOR

1.

Remove the blower motor. Refer to 

VTL-90, "Exploded View"

2.

Check that the blower motor rotates smoothly. 

Is the inspection result normal?

YES

>> END.

NO

>> Replace blower motor.

 

 

 

 

 

 

 

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