Nissan Altima HL32 Hybrid. Manual - part 496

INSPECTION AND ADJUSTMENT

HAC-5

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

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INSPECTION AND ADJUSTMENT

Description & Inspection

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DESCRIPTION

The purpose of the operational check is to check if the individual system operates properly.

INSPECTION PROCEDURE

Memory Function

1. Turn temperature control dial (driver side) clockwise until 32

°C (90°F) is displayed.

2. Press OFF switch.
3. Turn ignition switch OFF.
4. Turn ignition switch ON (READY).
5. Press AUTO switch.
6. Confirm that the set temperature remains at previous temperature.
7. Press OFF switch.
If NG, go to trouble diagnosis procedure for 

HAC-156, "Inspection procedure"

.

If OK, continue the check.

Blower

1. Turn fan control dial clockwise. Blower should operate on low speed.
2. Turn fan control dial clockwise again, and continue checking blower speed and fan symbol until all speeds

are checked.

3. Leave blower on max. speed.
If NG, go to trouble diagnosis procedure for 

HAC-81, "Diagnosis Procedure"

.

If OK, continue the check.

Discharge Air

1. Press MODE switch and DEF switch.
2. Each position indicator should illuminate.
3. Confirm that discharge air comes out according to the air distribution table. Refer to 

HAC-8, "System

Description"

.

If NG, go to trouble diagnosis procedure for 

HAC-53, "Diagnosis Procedure"

.

If OK, continue the check.

NOTE:

Confirm that the intake door position is at FRE when the D/F or DEF is selected.

Intake Air

Conditions

: After READY

JPIIA0232GB

HAC-6

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

INSPECTION AND ADJUSTMENT

1. Press recirculation (REC) switch. Recirculation indicator should illuminate.
2. Press recirculation (REC) switch again. Recalculation indicator should not illuminate.
3. Listen for intake door position change. (Slight change of blower sound can be heard.)
If NG, go to trouble diagnosis procedure for 

HAC-56, "Diagnosis Procedure"

.

If OK, continue the check.

NOTE:

Confirm that the intake door position is at FRE when the D/F or DEF is selected.

Temperature Decrease

1. Turn temperature control dial (driver side) counterclockwise until 18

°C (60°F) is displayed.

2. Check for cold air at discharge air outlets.
If NG, go to trouble diagnosis procedure for 

HAC-152, "Inspection procedure"

.

If OK, continue the check.

Temperature Increase

1. Turn temperature control dial (driver side) clockwise until 32

°C (90°F) is displayed.

2. Check for hot air at discharge air outlets.
If NG, go to trouble diagnosis procedure for 

HAC-153, "Inspection procedure"

.

If OK, continue the check.

A/C Switch

1. Press AUTO switch and A/C switch.
2. A/C switch indicator will turn ON.

Auto Mode

1. Press AUTO switch and A/C switch.
2. AUTO switch indicator will turn ON.

• Confirm that discharge air and blower speed will depend on ambient, in-vehicle, and set temperatures.

If NG, go to trouble diagnosis procedure for 

HAC-86, "Diagnosis Procedure"

, then if necessary, trouble diagno-

sis procedure for 

HAC-90, "Diagnosis Procedure"

.

If all operational checks are OK (symptom cannot be duplicated), go to Incident Simulation Tests in 

GI-38,

"Work Flow"

 and perform tests as outlined to simulate driving conditions environment. If symptom appears,

refer to 

HAC-151, "Diagnosis Chart By Symptom"

 and perform applicable trouble diagnosis procedures.

AUXILIARY MECHANISM

Temperature Setting Trimmer

The trimmer compensates for differences in range of 

±3°C (±6°F) between temperature setting and tempera-

ture felt by customer using CONSULT-III.

Operating procedures for this trimmer are as follows:

1. Turn ignition switch ON (READY).

2. Perform “TEMP SET CORRECT” in “WORK SUPPORT” with CONSULT-III.

3. Temperature will change at a rate of 0.5

°C (1.0°F).

NOTE:

When low voltage battery cable is disconnected or battery voltage is below 10 V, trimmer operation is can-

celed. Temperature set becomes that of initial condition, i.e. 0.0

°C (0.0°F).

Foot Position Setting Trimmer

Wind distribution ratio in FOOT mode can be set.

Operating procedures for this trimmer are as follows:

1. Turn ignition switch ON (READY).

2. Perform “BLOWER FAN SET” in “WORK SUPPORT” with CONSULT-III.

3. Foot mode is selected by setting the following.

*: Initial setting

INSPECTION AND ADJUSTMENT

HAC-7

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

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*: Initial setting

NOTE:

When low voltage battery cable is disconnected or battery voltage is below 10 V, trimmer operation is can-

celed. Wind distribution ratio set becomes that of initial condition.

REC 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. Turn ignition switch ON (READY).

2. Perform “REC MEMORY SET” in “WORK SUPPORT” with CONSULT-III.

3. REC memory function is selected by setting the following.

NOTE:

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

Memory function set becomes that of initial condition.

FRE 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. Turn ignition switch ON (READY).

2. Perform “FRE MEMORY SET” in “WORK SUPPORT” with CONSULT-III.

3. FRE memory function is selected by setting the following.

NOTE:

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

Memory function set becomes that of initial condition.

Work Item

Discharge air flow

Automatically controls the mode door

Manually controls the mode door

VENT

FOOT

DEF

VENT

FOOT

DEF

Front

Rear

Front

Rear

Front

Rear

Front

Rear

MODE 1

15%

16%

34%

15%

20%

15%

16%

34%

15%

20%

MODE 2* 

19%

20%

42%

19%

—

15%

16%

34%

15%

20%

MODE 3

19%

20%

42%

19%

—

19%

20%

42%

19%

—

MODE 4

15%

16%

34%

15%

20%

19%

20%

42%

19%

—

REC MEMORY SET

Setting status

MODE 1

Manual REC status is memorized. (Initial setting)

MODE 2

AUTO control

FRE MEMORY SET

Setting status

MODE 1

Manual FRE status is memorized.

MODE 2

AUTO control (Initial setting)

HAC-8

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

AUTOMATIC AIR CONDITIONER SYSTEM

FUNCTION DIAGNOSIS

AUTOMATIC AIR CONDITIONER SYSTEM

System Diagram

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CONTROL SYSTEM

The control system consists of input sensors, switches, auto amp. (microcomputer) and outputs. The relation-

ship of these components is shown in the figure below:

System Description

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CONTROL OPERATION

Controller

JSIIA0307GB

JPIIA0016GB