Nissan Altima L32. Manual - part 808

HAC-6

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

INSPECTION AND ADJUSTMENT

2. Confirm that the compressor clutch engages (audio or visual inspection).

(Discharge air and blower speed will depend on ambient, in-vehicle and set temperatures.)

If NG, go to 

HAC-61, "Diagnosis Procedure"

, then if necessary, 

HAC-46, "Component Function Check"

.

If all operational checks are OK (symptom can not be duplicated), go to Refer to Service Manual and perform

tests as outlined to simulate driving condition environment. If symptom appears, refer to 

HAC-83,

"Symptom Matrix Chart"

.

Auxiliary Mechanism Trimmers

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TEMPERATURE SETTING TRIMMER

The trimmer compensates for differences in range of 

±3°C (±6°F) between temperature setting (displayed dig-

itally) and temperature felt by customer.

Operating procedures for this trimmer are as follows:

1. Begin self-diagnosis STEP-5 mode. Refer to 

HAC-22, "Diagnosis Description"

.

2. Turn blower control dial clockwise to set system in auxiliary mode.

3. Display shows “61” in auxiliary mechanism. It takes approximately 3 seconds to enable setting operation.

4. Turn temperature control dial (LH) as desired. Temperature will change at a rate of 0.5

°C (1.0°F) each

time a dial is turned.

NOTE:

• A decimal point is not indicated on the display.

INSPECTION AND ADJUSTMENT

HAC-7

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

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A

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HAC

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• Negative value is displayed on the LH temperature display.

When battery cable is disconnected or battery voltage is below 10 V, trimmer operation is canceled. Tempera-

ture set becomes that of initial condition, i.e. 0

°C (0°F).

FOOT POSITION SETTING TRIMMER

D/F1 stop position mode can be set.

Operating procedures for this trimmer are as follows:

1. Begin self-diagnosis STEP-5 mode. Refer to 

HAC-22, "Diagnosis Description"

.

2. Turn blower control dial clockwise to set system in auxiliary mode.

3. Press the OFF switch for each mode as desired.

AWIIA0610GB

HAC-8

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

INSPECTION AND ADJUSTMENT

When battery cable is disconnected or battery voltage is below 10 V, trimmer operation is canceled. Foot posi-

tion mode set becomes that of initial condition.

INLET PORT MEMORY FUNCTION

When ignition switch is turned from OFF to ON, inlet port can be set to AUTO or manual.

Operating procedures for this trimmer are as follows:

1. Begin self-diagnosis STEP-5 mode. Refer to 

HAC-22, "Diagnosis Description"

.

2. Turn blower control dial clockwise to set system in auxiliary mode.
3. Press REC (

) switch as desired.

When battery cable is disconnected or battery voltage is below 10 V, memory function is canceled. Memory

function set becomes that of initial condition.

MODE Stop Position

AUTO D/F1

Manual D/F1

Blower speed

display

DEF door

DEF door

1st speed

D/F1

OPEN

FOOT

CLOSED

2nd speed

D/F1

OPEN

D/F1

OPEN

3rd speed

FOOT

CLOSED

D/F1

OPEN

4th speed

FOOT

CLOSED

FOOT

CLOSED

LED status of REC 

(

) position

LED status of DEF 

(

) position

Setting status

REC (

)

FRE (

)

ON

ON

Memorized

Memorized 

ON

OFF

Memorized (initial state)

Not memorized (AUTO control) (initial state)

OFF

ON

Not memorized (AUTO control)

Memorized

OFF

OFF

Not memorized (AUTO control)

Not memorized (AUTO control)

FUNCTION INFORMATION

HAC-9

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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HAC

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FUNCTION DIAGNOSIS

FUNCTION INFORMATION

Component Part Location

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ENGINE COMPARTMENT

QR25DE Models

AWIIA1236ZZ