Nissan Titan A60. Instruction — part 624
PRECAUTIONS
HAC-179
< PRECAUTION >
[MANUAL A/C (TYPE 1)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
If a refrigerant other than pure HFC-134a (R-134a) is identified in a vehicle, your options are:
• Explain to the customer that environmental regulations prohibit the release of contaminated refrigerant into
the atmosphere.
• Explain that recovery of the contaminated refrigerant could damage your service equipment and refrigerant
supply.
• Suggest the customer return the vehicle to the location of previous service where the contamination may
have occurred.
• If you choose to perform the repair, recover the refrigerant using only dedicated equipment and contain-
ers. Do not recover contaminated refrigerant into your existing service equipment. If your facility does
not have dedicated recovery equipment, you may contact a local refrigerant product retailer for available ser-
vice. This refrigerant must be disposed of in accordance with all federal and local regulations. In addition,
replacement of all refrigerant system components on the vehicle is recommended.
• If the vehicle is within the warranty period, the air conditioner warranty is void. Please contact NISSAN Cus-
tomer Affairs for further assistance.
Precaution for Service Equipment
INFOID:0000000006164797
MANIFOLD GAUGE SET
Be certain that the gauge face indicates R-134a or 134a. Make sure
the gauge set has 1/2
″-16 ACME threaded connections for service
hoses. Confirm the set has been used only with refrigerant HFC-
134a (R-134a) along with specified oil.
SERVICE HOSES
Be certain that the service hoses display the markings described
(colored hose with black stripe). All hoses must include positive shut-
off devices (either instruction or automatic) near the end of the hoses
opposite the manifold gauge.
SERVICE COUPLERS
Never attempt to connect HFC-134a (R-134a) service couplers to a
CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will
not properly connect to the CFC-12 (R-12) system. However, if an
improper connection is attempted, discharging and contamination
may occur.
SHA533D
RHA272D
Shut-off valve rotation
A/C service valve
Clockwise
Open
Counterclockwise
Close
RHA273D
HAC-180
< BASIC INSPECTION >
[MANUAL A/C (TYPE 2)]
MANUAL A/C IDENTIFICATION TABLE
BASIC INSPECTION
MANUAL A/C IDENTIFICATION TABLE
Application Table
INFOID:0000000006164798
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
DIAGNOSIS AND REPAIR WORKFLOW
HAC-181
< BASIC INSPECTION >
[MANUAL A/C (TYPE 2)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
DIAGNOSIS AND REPAIR WORKFLOW
How to Perform Trouble Diagnosis For Quick And Accurate Repair
INFOID:0000000006164799
WORK FLOW
1.
LISTEN TO CUSTOMER COMPLAINT
Listen to customer complaint. Get detailed information about the conditions and environment when the symp-
tom occurs.
>> GO TO 2
2.
CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 3.
3.
VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check. Refer to
>> GO TO 4
4.
GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis. Refer to
HAC-243, "Symptom Matrix Chart"
>> GO TO 5.
5.
REPAIR OR REPLACE
Repair or replace the specific parts.
>> GO TO 7
6.
FINAL CHECK
Final check.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 4
HAC-182
< BASIC INSPECTION >
[MANUAL A/C (TYPE 2)]
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
Operational Check
INFOID:0000000006164800
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-212, "Front Blower Motor Diagnosis Procedure"
If OK, continue with next check.
CHECKING DISCHARGE AIR
1. Rotate MODE control dial to each position and the DEF
mode.
2. 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-197, "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-206, "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 Diagnosis Procedure"
.
If OK, continue with next check.
CHECK A/C SWITCH
1. Press A/C switch.
•
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.
Conditions
: Engine running and at normal operating temperature
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст