Nissan Titan A60. Instruction — part 604
INSPECTION AND ADJUSTMENT
HAC-99
< BASIC INSPECTION >
[MANUAL A/C (TYPE 1)]
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INSPECTION AND ADJUSTMENT
Operational Check
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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
.
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
. If air mix door motor appears to be malfunctioning, go to
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
. If air mix door motor appears to be malfunctioning, go to
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
and perform applicable trouble diagnosis procedures.
MANUAL A/C IDENTIFICATION TABLE
HAC-101
< SYSTEM DESCRIPTION >
[MANUAL A/C (TYPE 1)]
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SYSTEM DESCRIPTION
MANUAL A/C IDENTIFICATION TABLE
Application Table
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Instruction A/C Type
Description
Visual Identification
Instruction A/C (Type 1)
Two Control Dial System
Instruction 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
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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
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