Nissan March K13. Manual — part 391
HAC-98
< BASIC INSPECTION >
[MANUAL AIR CONDITIONER]
DIAGNOSIS AND REPAIR WORKFLOW
1.
INTERVIEW FOR MALFUNCTION
Interview the symptom to the customer.
>> GO TO 2.
2.
SYMPTOM CHECK
Check the symptom from the customer's information.
>> GO TO 3.
3.
BASIC INSPECTION
Check the operation of each part. Check that any symptom occurs other than the interviewed symptom.
>> GO TO 4.
4.
SELF-DIAGNOSIS WITH CONSULT-III
Perform the self-diagnosis with CONSULT-III. Check that any DTC is detected.
Is any DTC detected?
YES
>> GO TO 5.
NO
>> GO TO 6.
5.
TROUBLE DIAGNOSIS BY DTC
Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.
>> GO TO 6.
6.
SYMPTOM DIAGNOSIS
Perform the symptom diagnosis. Specify the malfunctioning part.
>> GO TO 7.
7.
MALFUNCTION PART REPAIR
Repair or replace the malfunctioning part.
>> GO TO 8.
8.
REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)
Perform the self-diagnoses with CONSULT-III. Check that any DTC is not detected. Erase DTC if DTC is
detected before the repair. Check that DTC is not detected again.
Is any or malfunction result or DTC detected?
YES
>> If DTC is detected, GO TO 5.
NO
>> GO TO 9.
9.
REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES
>> INSPECTION END
NO
>> GO TO 3.
OPERATION INSPECTION
HAC-99
< BASIC INSPECTION >
[MANUAL AIR CONDITIONER]
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OPERATION INSPECTION
Description & Inspection
INFOID:0000000006024102
DESCRIPTION
The purpose of the operational check is to check that the individual system operates normally.
INSPECTION PROCEDURE
1.
CHECK BLOWER MOTOR
1.
Start the engine.
2.
Operate the fan control dial. Check that the fan speed changes. Check the operation for all fan speeds.
3.
Leave blower on maximum speed.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Blower motor system malfunction. Refer to
HAC-101, "Diagnosis Procedure"
2.
CHECK DISCHARGE AIR
1.
Operate MODE dial to each position.
2.
Check that the air outlets change according to each indicated air outlet by placing a hand in front of the
outlets. Refer to
XX-XX, "*****"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace the mode door cable.
3.
CHECK INTAKE AIR
1.
Set air intake lever to REC position.
2.
Operate air intake lever to FRE position.
3.
Listen for intake door position change (you should hear blower sound change slightly).
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace the intake door cable.
4.
CHECK A/C SWITCH
1.
Press the A/C switch.
2.
Check that the indicator of the A/C switch turns ON. Check visually and by sound that the compressor
operates.
3.
Press the A/C switch again.
4.
Check that the indicator of the A/C switch turns OFF. Check that the compressor stops.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Magnet clutch system malfunction. Refer to
HAC-104, "Diagnosis Procedure"
5.
CHECK TEMPERATURE DECREASE
1.
Operate the compressor.
2.
Turn the temperature control dial to full cold position.
3.
Check that the cool air blows from the outlets.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Insufficient cooling. Refer to
HAC-111, "Diagnosis Procedure"
6.
CHECK TEMPERATURE INCREASE
1.
Turn temperature control dial to full hot position after warming up the engine.
2.
Check that warm air blows from outlets.
Is the inspection result normal?
Check condition
: Engine running at normal operating temperature.
HAC-100
< BASIC INSPECTION >
[MANUAL AIR CONDITIONER]
OPERATION INSPECTION
YES
>> INSPECTION END
NO
>> Insufficient heating. Refer to
BLOWER MOTOR
HAC-101
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
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DTC/CIRCUIT DIAGNOSIS
BLOWER MOTOR
Diagnosis Procedure
INFOID:0000000006024120
1.
CHECK FUSE
Check 15A fuses [Nos. 14 and 16, located in the fuse block (J/B)].
NOTE:
Refer to
XX-XX, "*****"
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace fuse after repairing the applicable circuit.
2.
CHECK POWER SUPPLY FOR BLOWER MOTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the blower motor connector.
3.
Turn the ignition switch ON.
4.
Check voltage between blower motor harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
CHECK BLOWER RELAY
1.
Turn the ignition switch OFF.
2.
Perform the component inspection of blower relay. Refer to
HAC-102, "Component Inspection"
Is the inspection result normal?
YES
>> Replace the harness or connector between blower motor and fuse.
NO
>> Replace the blower relay.
4.
CHECK A/C CONTROL GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the A/C control connector.
3.
Check continuity between A/C control harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair the harness or connector.
5.
CHECK CONTINUITY BETWEEN A/C CONTROL AND BLOWER MOTOR
Check continuity A/C control harness connector and blower motor harness connector.
Is the inspection result normal?
(+)
(
−
)
Voltage
(Approx.)
Blower motor
—
Connector
Terminal
M39
1
Ground
Battery voltage
A/C control
—
Continuity
Connector
Terminal
M53
6
Ground
Existed
A/C control
Blower motor
Continuity
Connector
Terminal
Connector
Terminal
M53
1
M39
2
Existed
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