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Nissan Teana J32. Manual - part 680

INSUFFICIENT COOLING

HAC-89

< SYMPTOM DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

HAC

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

HAC-38, "CONSULT-III Function"

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

Refer to the table and check the outlet, inlet, air flow temperature, blower motor control signal, magnet
clutch operation, and air mix ratio. Visually check each operating condition, by listening for noise, touching
air outlets with a hand, etc.

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

>> GO TO 7.

NO-1

>> Air outlet does not change. Refer to

HAC-61, "Diagnosis Procedure"

NO-2

>> Air inlet does not change. Refer to

HAC-64, "Diagnosis Procedure"

NO-3

>> Discharge air temperature does not change (driver side). Refer to

HAC-57, "Diagnosis Proce-

dure"

NO-4

>> Discharge air temperature does not change (passenger side). Refer to

HAC-59, "Diagnosis Pro-

cedure"

NO-5

>> Blower motor does not operate normally. Refer to

HAC-68, "Diagnosis Procedure"

NO-6

>> Magnet clutch does not operate. Refer to

HAC-72, "Diagnosis Procedure"

CHECK DRIVE BELT

Check tension of the drive belt. Refer to

EM-12, "Checking"

Is the inspection result normal?

YES

>> GO TO 8.

>> Adjust or replace drive belt.

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

20% FRE

FRE

Air mix door position
(driver & passenger
side)

FULL COLD

FULL HOT

Blower motor duty ratio

37%

91%

65%

91%

Compressor (Magnet
clutch)

OFF

JPIIA0877GB

HAC-90

< SYMPTOM DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

INSUFFICIENT COOLING

CHECK AIR LEAKAGE FROM DUCT

Check duct and nozzle, etc, of the A/C system for air leakage.
Is the inspection result normal?

YES

>> INSPECTION END

>> Repair or replace parts according to the inspection results.

INSUFFICIENT HEATING

HAC-91

< SYMPTOM DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

HAC

INSUFFICIENT HEATING

Description

INFOID:0000000003846388

Symptom

• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)

Inspection procedure

INFOID:0000000003846389

CHECK COOLING SYSTEM

Check engine coolant level and check for leakage. Refer to

CO-8, "Inspection"

Check radiator cap. Refer to

CO-12, "RADIATOR CAP : Inspection"

Check water flow sounds of engine coolant. Refer to

CO-9, "Refilling"

Is the inspection result normal?

YES

>> GO TO 2.

>> Refill the engine coolant and repair or replace the parts according to the inspection results.

CHECK OPERATION

Press temperature control switch (driver side) and raise temperature setting to 32

C (90

F) after warming

up the engine.

Check that warm air blows from the outlets.

Is the inspection result normal?

YES

>> END.

>> GO TO 3.

CHECK SETTING OF TEMPERATURE SETTING TRIMMER

Using CONSULT-III, check the setting of “TEMP SET CORRECT” on “WORK SUPPORT” of HVAC. Refer to

HAC-10, "Temperature Setting Trimmer"

Check that the temperature setting trimmer is set to “

−

direction”.

NOTE:
The control temperature can be set by the temperature setting trimmer.

Set temperature control switch to “0”.

Are the malfunction solved?

YES

>> Perform the setting separately if necessary. END.

>> GO TO 4.

CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III

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

Check if any DTC is displayed in the trouble diagnosis results.
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to

HAC-42, "DTC Logic"

HAC-43, "DTC Logic"

Is any DTC displayed?

YES

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

HAC-85, "DTC

Index"

>> GO TO 5.

CHECK WITH ACTIVE TEST OF CONSULT-III

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

HAC-38, "CONSULT-III Function"

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