Nissan Versa Note. Instruction — part 504
MANUAL AIR CONDITIONING SYSTEM
HAC-51
< SYMPTOM DIAGNOSIS >
[MANUAL AIR CONDITIONING]
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SYMPTOM DIAGNOSIS
MANUAL AIR CONDITIONING SYSTEM
Symptom Table
INFOID:0000000009541012
SYMPTOM TABLE
Symptom
Reference Page
A/C system does not come on.
Go to Trouble Diagnosis Procedure for A/C System.
A/C system cannot be controlled.
Go to Self-diagnosis Function.
Air outlet does not change.
Go to Adjustment Procedure for Mode Door.
Discharge air temperature does not change.
Go to Adjustment Procedure for Air Mix Door.
Intake door does not change.
Go to Adjustment Procedure for Intake Door.
Front blower motor operation is malfunction-
ing.
Go to Trouble Diagnosis Procedure for Front Blower Motor.
Magnet clutch does not engage.
Go to Trouble Diagnosis Procedure for Magnet Clutch.
Insufficient cooling.
Go to Trouble Diagnosis Procedure for Insufficient Cooling.
Insufficient heating.
Go to Trouble Diagnosis Procedure for Insufficient Heating.
Noise.
Go to Trouble Diagnosis Procedure for Noise.
A/C switch LED does not illuminate.
Go to Trouble Diagnosis Procedure for A/C System.
Both high- and low-pressure sides are too
high.
Go to Trouble Diagnosis Procedure for Abnormal Pressure.
High-pressure side is too high and low pres-
sure side is too low.
Go to Trouble Diagnosis Procedure for Abnormal Pressure.
High-pressure side is too low and low-pres-
sure side is too high.
Go to Trouble Diagnosis Procedure for Abnormal Pressure.
Both high- and low-pressure side sometimes
become negative.
Go to Trouble Diagnosis Procedure for Abnormal Pressure.
Low-pressure side sometimes becomes neg-
ative.
Go to Trouble Diagnosis Procedure for Abnormal Pressure.
Low-pressure side becomes negative.
Go to Trouble Diagnosis Procedure for Abnormal Pressure.
HAC-52
< SYMPTOM DIAGNOSIS >
[MANUAL AIR CONDITIONING]
INSUFFICIENT COOLING
INSUFFICIENT COOLING
Description
INFOID:0000000009541013
Symptom
• Insufficient cooling
• No cool air comes out. (Air flow volume is normal.)
Diagnosis Procedure
INFOID:0000000009541014
NOTE:
Perform self-diagnosis with CONSULT before performing symptom diagnosis. If any malfunction result or DTC
is detected, perform the corresponding diagnosis.
1.
CHECK MAGNET CLUTCH OPERATION
1. Turn ignition switch ON.
2. Turn fan control dial ON.
3. Press A/C switch.
4. Check that A/C indicator turns ON. Check visually and by sound that compressor operates.
5. Press A/C switch again.
6. Check that A/C indicator turns OFF. Check that compressor stops.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check compressor operation. Refer to
.
2.
CHECK DRIVE BELT
Check tension of drive belt. Refer to
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Adjust or replace drive belt depending on the inspection results.
3.
CHECK REFRIGERANT CYCLE PRESSURE
Connect the recovery/recycling recharging equipment to the vehicle and perform the pressure inspection
using gauge. Refer to
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace parts depending on the inspection results.
4.
CHECK AIR LEAKAGE FROM EACH DUCT
Check duct and nozzle, etc. of the air conditioner system for leakage.
Is the inspection result normal?
YES
>> Check air mix door cable installation and air mix door operation.
NO
>> Repair or replace parts depending on the inspection results.
INSUFFICIENT HEATING
HAC-53
< SYMPTOM DIAGNOSIS >
[MANUAL AIR CONDITIONING]
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INSUFFICIENT HEATING
Description
INFOID:0000000009541015
Symptom
• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)
Diagnosis Procedure
INFOID:0000000009541016
NOTE:
Perform self-diagnosis with CONSULT before performing symptom diagnosis. If any malfunction result or DTC
is detected, perform the corresponding diagnosis.
1.
CHECK COOLING SYSTEM
1. Check engine coolant level and check for leakage. Refer to
.
2. Check radiator cap. Refer to
CO-12, "RADIATOR CAP : Inspection"
3. Check water flow sounds of the engine coolant. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Refill engine coolant and repair or replace the parts depending on the inspection results.
2.
CHECK HEATER HOSE
Check installation of heater hose by visually or touching.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace parts depending on the inspection results.
3.
CHECK HEATER CORE
1. Check temperature of inlet hose and outlet hose of heater core.
2. Check that inlet side of heater core is hot and the outlet side is slightly lower than/almost equal to the inlet
side.
CAUTION:
Always perform the temperature inspection in a short period of time because the engine coolant
temperature is very hot.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace heater core. Refer to
HA-33, "HEATER CORE : Removal and Installation"
4.
CHECK AIR LEAKAGE FROM EACH DUCT
Check duct and nozzle, etc. of air conditioning system for air leakage.
Is the inspection result normal?
YES
>> Check air mix door cable installation and air mix door operation.
NO
>> Repair or replace parts depending on the inspection results.
HAC-54
< SYMPTOM DIAGNOSIS >
[MANUAL AIR CONDITIONING]
COMPRESSOR DOES NOT OPERATE
COMPRESSOR DOES NOT OPERATE
Description
INFOID:0000000009541017
SYMPTOM
Compressor does not operate.
Diagnosis Procedure
INFOID:0000000009541018
NOTE:
• Perform self-diagnosis with CONSULT before performing symptom diagnosis. If any malfunction result or
DTC is detected, perform the corresponding diagnosis.
• Check that refrigerant system is fully charged. If the refrigerant charge is low, perform the inspection for
refrigerant leakage
1.
CHECK MAGNET CLUTCH OPERATION
Check magnet clutch. Refer to
HAC-49, "Component Function Check"
.
Does it operate normally?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning parts.
2.
CHECK REFRIGERANT PRESSURE SENSOR
Check refrigerant pressure sensor. Refer to
EC-450, "Component Function Check"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace malfunctioning parts.
3.
CHECK A/C ON SIGNAL
Check A/C ON signal. Refer to
HAC-35, "Component Function Check"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace malfunctioning parts.
4.
CHECK DEFROSTER POSITION SIGNAL
Check defroster position signal. Refer to
HAC-39, "Component Function Check"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace malfunctioning parts.
5.
CHECK BLOWER FAN ON SIGNAL
Check blower fan ON signal. Refer to
HAC-37, "Component Function Check"
.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace malfunctioning parts
6.
CHECK BCM OUTPUT SIGNAL
With CONSULT
1. Select “DATA MONITOR” mode of “ECM” using CONSULT.
2. Select “AIR COND SIG” and “HEATER FAN SW”, and check status under the following conditions.
Is the inspection result normal?
Monitor item
Condition
Status
AIR COND SIG
A/C switch
OFF (A/C indicator: OFF)
Off
ON (A/C indicator: ON)
On
HEATER FAN SW
Blower motor
OFF
Off
ON
On
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