Nissan Titan A60. Manual — part 604

INSPECTION AND ADJUSTMENT

HAC-99

< BASIC INSPECTION >

[MANUAL A/C (TYPE 1)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

INSPECTION AND ADJUSTMENT

Operational Check

INFOID:0000000006164737

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

CHECKING BLOWER

1. Rotate the blower control dial clockwise once, blower should operate on low speed.
2. Rotate the blower control dial again, and continue checking blower speed until all speeds are checked.
3. Leave blower on maximum speed.
If NG, go to trouble diagnosis procedure for

HAC-132, "Front Blower Motor Diagnosis Procedure"

.

If OK, continue with next check.

CHECKING DISCHARGE AIR

1. Press each MODE switch and the 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-109, "Discharge

Air Flow"

.

Mode door position is checked in the next step.

If NG, go to trouble diagnosis procedure for

HAC-116, "Mode Door Motor Diagnosis Procedure"

.

If OK, continue the check.

NOTE:

Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at

fresh when the DEF or D/F is selected.

CHECKING RECIRCULATION ( , ONLY)

1. Press recirculation (

) switch one time. Recirculation indicator should illuminate.

2. Press recirculation (

) switch one more time. Recirculation indicator should go off.

3. Listen for intake door position change (blower sound should change slightly).
If NG, go to trouble diagnosis procedure for

HAC-126, "Intake Door Motor Diagnosis Procedure"

.

If OK, continue the check.

NOTE:

Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at fresh
when the DEF or D/F is selected. REC (

) is not allowed in DEF (

) D/F (

) or FOOT (

).

CHECKING TEMPERATURE DECREASE

1. Rotate temperature control dial counterclockwise until maximum cold.
2. Check for cold air at appropriate discharge air outlets.
If NG, listen for sound of air mix door motor operation. If OK, go to trouble diagnosis procedure for

HAC-167,

"Component Function Check"

. If air mix door motor appears to be malfunctioning, go to

HAC-121, "Air Mix

Door Motor Diagnosis Procedure"

.

If OK, continue the check.

CHECKING TEMPERATURE INCREASE

1. Rotate temperature control dial clockwise until maximum hot.
2. Check for hot air at appropriate discharge air outlets.
If NG, listen for sound of air mix door motor operation. If OK, go to trouble diagnosis procedure for

HAC-175,

"Component Function Check"

. If air mix door motor appears to be malfunctioning, go to

HAC-120, "Air Mix

Door Motor Component Function Check"

.

If OK, continue with next check.

CHECK A/C SWITCH

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

Conditions

: Engine running and at normal operating temperature

HAC-100

< BASIC INSPECTION >

[MANUAL A/C (TYPE 1)]

INSPECTION AND ADJUSTMENT

• Confirm that the compressor clutch engages (sound or visual inspection).

NOTE:

If current mode setting is DEF or D/F, compressor clutch will already be engaged and cannot be turned off.

If NG, go to trouble diagnosis procedure for

HAC-137, "Magnet Clutch Diagnosis Procedure"

.

If all operational checks are OK (symptom cannot be duplicated), go to

HAC-98, "How to Perform Trouble

Diagnosis For Quick And Accurate Repair"

and perform tests as outlined. If symptom appears, refer to

HAC-

166, "Symptom Matrix Chart"

and perform applicable trouble diagnosis procedures.

MANUAL A/C IDENTIFICATION TABLE

HAC-101

< SYSTEM DESCRIPTION >

[MANUAL A/C (TYPE 1)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

SYSTEM DESCRIPTION

MANUAL A/C IDENTIFICATION TABLE

Application Table

INFOID:0000000006164738

Manual A/C Type

Description

Visual Identification

Manual A/C (Type 1)

Two Control Dial System

Manual A/C (Type 2)

Three Control Dial System

[with variable blower control

(VBC)]

AWIIA0481ZZ

AWIIA0478ZZ

HAC-102

< SYSTEM DESCRIPTION >

[MANUAL A/C (TYPE 1)]

FUNCTION INFORMATION

FUNCTION INFORMATION

Component Part Location

INFOID:0000000006164739

ENGINE COMPARTMENT

AWIIA1075ZZ

1.

Horn (view with grille removed)

2.

Refrigerant pressure sensor E48
(view with grille removed)

3.

A/C compressor F3

4.

Ambient sensor E1 (view with grille
removed)

5.

Water valve F68