Nissan Titan A60. Manual - part 581

INSPECTION AND ADJUSTMENT

HAC-7

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

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If OK, continue the check.

CHECKING TEMPERATURE INCREASE

1. Rotate temperature control dial clockwise (drive or passenger) until 32

°C (90°F) is displayed.

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-91,

"Component Function Check"

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

HAC-28, "Air Mix Door

Motor (Driver) Component Function Check"

. 

If OK, continue with next check.

CHECK A/C SWITCH

1. Press A/C switch when AUTO switch is ON, or in manual mode.
2. A/C switch indicator will turn ON.

• 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-49, "Magnet Clutch Diagnosis Procedure"

.

If OK, continue with next check.

CHECKING AUTO MODE

1. Press AUTO switch.
2. AUTO indicator should illuminate.

• If ambient temperature is warm, and selected temperature is cool, confirm that the compressor clutch

engages (sound or visual inspection). (Discharge air and blower speed will depend on ambient, in-vehi-

cle, and set temperatures.)

If NG, go to trouble diagnosis procedure for 

HAC-67, "Front Air Control Power and Ground Diagnosis

Procedure"

, then if necessary, trouble diagnosis procedure for  

HAC-49, "Magnet Clutch Diagnosis Pro-

cedure"

.

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

HAC-5, "How to Perform Trouble Diagnosis For Quick And Accurate Repair"

 and perform tests as out-

lined to simulate driving conditions environment. If symptom appears. Refer to 

HAC-82,

"Symptom Matrix Chart"

, and perform applicable trouble diagnosis procedures.

HAC-8

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

FUNCTION INFORMATION

SYSTEM DESCRIPTION

FUNCTION INFORMATION

Component Part Location

INFOID:0000000006164672

ENGINE COMPARTMENT

AWIIA1075ZZ

1.

Horn (view with grille removed)

2.

Refrigerant pressure sensor E48 

3.

A/C compressor F3

4.

Ambient sensor E1 (view with grille 
removed)

5.

Water valve F68

FUNCTION INFORMATION

HAC-9

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

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PASSENGER COMPARTMENT

1.

Front air control M49, M50

2.

In-vehicle sensor M32

3.

Intake sensor M146

4.

Intake door motor M58

5.

Variable blower control M122

6.

Air mix door motor (Passenger) M143

7.

Mode door motor M142

8.

Defroster door motor M144

9.

Air mix door motor (driver) M147

10. Optical sensor M302

⇐

:Front

AWIIA0357ZZ

HAC-10

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

FUNCTION INFORMATION

Symptom Table

INFOID:0000000006164673

Symptom

Reference Page

A/C system does not come on.

Go to Trouble Diagnosis Procedure for A/C System.

HAC-67

A/C system cannot be controlled.

Go to Self-diagnosis Function.

HAC-21

Air outlet does not change.

Go to Trouble Diagnosis Procedure for Mode Door Motor.

HAC-23

Mode door motor is malfunctioning.

Discharge air temperature does not change.

Go to Trouble Diagnosis Procedure for Air Mix Door Motor.

HAC-28

Air mix door motor is malfunctioning.

Intake door does not change.

Go to Trouble Diagnosis Procedure for Intake Door Motor.

HAC-36

Intake door motor is malfunctioning.

Defroster door motor is malfunctioning.

Go to Trouble Diagnosis Procedure for Defroster Door Motor.

HAC-39

Front blower motor operation is malfunction-
ing.

Go to Trouble Diagnosis Procedure for Front Blower Motor.

HAC-44

Magnet clutch does not engage.

Go to Trouble Diagnosis Procedure for Magnet Clutch.

HAC-49

Insufficient cooling

Go to Trouble Diagnosis Procedure for Insufficient Cooling.

HAC-83

Insufficient heating

Go to Trouble Diagnosis Procedure for Insufficient Heating.

HAC-91

Noise

Go to Trouble Diagnosis Procedure for Noise.

HAC-93

Self-diagnosis cannot be performed.

Go to Trouble Diagnosis Procedure for Self-diagnosis.

HAC-21

Memory function does not operate.

Go to Trouble Diagnosis Procedure for Memory Function.

HAC-94