Nissan March K13. Manual — part 379
HAC-50
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
SUNLOAD SENSOR
Is the inspection result normal?
YES
>> Replace the A/C auto amp.
NO
>> Repair the harnesses or connectors.
Component Inspection
INFOID:0000000006024034
1.
CHECK SUNLOAD SENSOR
1.
Turn the ignition switch ON.
2.
Check the input voltage from sunload sensor between A/C auto amp. harness connector and the ground.
Refer to the applicable table for the normal value.
NOTE:
• When checking indoors, use a lamp of approximately 60 W. Move the lamp towards and away from the
sensor to check.
• The sunload amount produced by direct sunshine in fair weather is equivalent to approximately 0.77
kW/m
2
(662 kcal/m
2
·h).
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the sunload sensor.
Sunload sensor
—
Continuity
Connector
Terminal
M74
1
Ground
Not existed
(+)
(
−
)
A/C auto amp.
—
Connector
Terminal
M50
18
Ground
JPIIA1659GB
AIR MIX DOOR MOTOR
HAC-51
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
AIR MIX DOOR MOTOR
Diagnosis Procedure
INFOID:0000000006024036
1.
PERFORM SELF-DIAGNOSIS
Perform self-diagnosis function. Refer to
HAC-22, "Diagnosis Description"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR
Check voltage between air mix door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK SIGNAL FOR AIR MIX DOOR MOTOR
Confirm A/C LAN signal between air mix door motor harness connector and ground using an oscilloscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK AIR MIX DOOR MOTOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor connector.
3.
Check continuity between air mix door motor harness connector and ground.
Is the inspection result normal?
YES
>> Replace air mix door motor.
NO
>> Repair harness or connector.
5.
CHECK INSTALLATION OF AIR MIX DOOR MOTOR
Check air mix door motor is properly installed. Refer to
XX-XX, "*****"
.
(+)
(
−
)
Voltage
(Approx.)
Air mix door motor
—
Connector
Terminal
M55
1
Ground
12 V
(+)
(
−
)
Voltage
Air mix door motor
—
Connector
Terminal
M55
3
Ground
SJIA1453J
Air mix door motor
—
Continuity
Connector
Terminal
M55
2
Ground
Existed
HAC-52
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
AIR MIX DOOR MOTOR
Is it installed normally?
YES
>> INSPECTION END
NO
>> Repair or replace air mix door motor.
MODE DOOR MOTOR
HAC-53
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
MODE DOOR MOTOR
Diagnosis Procedure
INFOID:0000000006024039
1.
PERFORM SELF-DIAGNOSIS
Perform self-diagnosis function. Refer to
HAC-22, "Diagnosis Description"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY FOR MODE DOOR MOTOR
Check voltage between mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK SIGNAL FOR MODE DOOR MOTOR
Confirm A/C LAN signal between mode door motor harness connector and ground using an oscilloscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK MODE DOOR MOTOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect mode door motor connector.
3.
Check continuity between mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> Replace mode door motor.
NO
>> Repair harness or connector.
5.
CHECK MODE DOOR CONTROL LINKAGE
Check mode door control linkage is properly installed. Refer to
XX-XX, "*****"
.
(+)
(
−
)
Voltage
(Approx.)
Mode door motor
—
Connector
Terminal
M56
1
Ground
12 V
(+)
(
−
)
Voltage
Mode door motor
—
Connector
Terminal
M56
3
Ground
SJIA1453J
Mode door motor
—
Continuity
Connector
Terminal
M56
2
Ground
Existed
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