Nissan Altima L32. Instruction — part 832

HAC-102

< BASIC INSPECTION >

[MANUAL AIR CONDITIONER]

INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

Description & Conditions

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DESCRIPTION

The purpose of the operational check is to confirm that the system operates properly.

CONDITIONS:

• Engine running and at normal operation temperature.

Operational Check

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STEP 1: Check Blower

1. Turn blower control dial clockwise, blower should operate on low speed.
2. Continue turning blower control dial clockwise, and continue checking blower speeds until all speeds are

checked.

3. Leave blower on HI speed.
If NG, go to

HAC-127, "Diagnosis Procedure"

.

If OK, continue with next check.

STEP 2: Check Discharge Air

1. Press each mode switch and press DEF (

) switch.

2. Each mode position indicator should illuminate.
3. Confirm that discharge air comes out according to the air distribution table. Refer to

HAC-107, "System

Description"

.

NOTE:

Confirm that the compressor clutch is engaged (audio or visual inspection) and intake door is in the FRE
(

) position when the DEF (

) is selected.

Intake door position is checked in the next step.

If NG, go to

HAC-124, "Diagnosis Procedure"

.

If OK, continue with next check.

STEP 3: Check Recirculation

1. Press REC (

) switch.

Recirculation indicator should illuminate.

2. Press REC (

) switch a second time.

3. Listen for intake door position change (you should hear blower sound change slightly).
If NG, go to

HAC-124, "Diagnosis Procedure"

.

If OK, continue with next check.

STEP 4: Check Temperature Decrease

1. Turn the temperature dial counterclockwise to maximum cold.
2. Check for cold air at discharge air outlets.
If NG, go to

HAC-122, "Diagnosis Procedure"

.

If OK, continue with next check.

STEP 5: Check Temperature Increase

1. Turn the temperature dial clockwise to maximum heat.
2. Check for hot air at discharge air outlets.
If NG, go to

HAC-122, "Diagnosis Procedure"

.

If OK, continue with next check.

STEP 6: Check Air Conditioner Switch (if equipped)

1. Turn blower control dial to the desired position and push the A/C switch to turn ON the air conditioner

INSPECTION AND ADJUSTMENT

HAC-103

< BASIC INSPECTION >

[MANUAL AIR CONDITIONER]

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2. Confirm that the A/C indicator illuminates and that the compressor clutch engages (audio or visual inspec-

tion).

If NG, go to

HAC-135, "Diagnosis Procedure"

, then if necessary,

HAC-131, "Diagnosis Procedure"

.

If OK, listen to customer complaint (get detailed information about the conditions and environment when the

symptom occurs). Verify the symptom and refer to

HAC-155, "Symptom Matrix Chart"

.

HAC-104

< FUNCTION DIAGNOSIS >

[MANUAL AIR CONDITIONER]

FUNCTION INFORMATION

FUNCTION DIAGNOSIS

FUNCTION INFORMATION

Component Part Location

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ENGINE COMPARTMENT

QR25DE Models

AWIIA1233ZZ

FUNCTION INFORMATION

HAC-105

< FUNCTION DIAGNOSIS >

[MANUAL AIR CONDITIONER]

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VQ35DE Models

PASSENGER COMPARTMENT

1.

A/C compressor F3

2.

Refrigerant pressure sensor E219

3.

A/C relay (internal to IPDM E/R)

AWIIA1234ZZ

1.

A/C compressor F3

2.

Refrigerant pressure sensor E219

3.

A/C relay (internal to IPDM E/R)