Nissan March K13. Manual — part 392
HAC-102
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
BLOWER MOTOR
YES
>> GO TO 6.
NO
>> Repair the harness or connector.
6.
CHECK VOLTAGE BETWEEN BLOWER FAN RESISTOR AND GROUND
1.
Disconnect the blower fan resistor connector.
2.
Turn the ignition switch ON.
3.
Check voltage between blower fan resistor harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair the harness or connector between blower fan resistor and blower motor.
7.
CHECK BLOWER FAN RESISTOR
1.
Turn the ignition switch OFF.
2.
Perform the component inspection of blower fan resistor. Refer to
HAC-102, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace the blower fan resistor.
8.
CHECK CIRCUIT CONTINUITY BETWEEN A/C CONTROL AND BLOWER FAN RESISTOR
Check continuity between A/C control harness connector and blower fan resistor.
Is the inspection result normal?
YES
>> Replace A/C control.
NO
>> Repair the harness or connector.
Component Inspection
INFOID:0000000006024121
BLOWER MOTOR
1.
CHECK BLOWER MOTOR
1.
Remove the blower motor. Refer to
XX-XX, "*****"
.
2.
Check that there is not any mixing foreign object in the blower motor.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blower motor.
2.
CHECK BLOWER MOTOR
Check that there is not breakage or damage in the blower motor.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace the blower motor.
3.
CHECK BLOWER MOTOR
Check that the blower motor turns smoothly.
Is the inspection result normal?
(+)
(
−
)
Voltage
(Approx.)
Blower fan resistor
—
Connector
Terminal
M104
1
Ground
12 V
A/C control
Blower fan resistor
Continuity
Connector
Terminal
Connector
Terminal
M53
2
M104
2
Existed
3
3
4
4
BLOWER MOTOR
HAC-103
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
YES
>> INSPECTION END
NO
>> Replace the blower motor.
BLOWER RELAY
1.
CHECK BLOWER RELAY
1.
Remove the blower relay. Refer to
XX-XX, "*****"
.
2.
Check the continuity between the blower relay terminal 3 and 5
when the voltage is supplied between terminal 1 and 2.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the blower relay.
BLOWER FAN RESISTOR
1.
CHECK BLOWER MOTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the blower fan resistor connector.
3.
Check the resistance between blower fan resistor terminals. Refer to the applicable table for the normal
value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the blower fan resistor.
Blower relay
Voltage
Continuity
Terminal
3
5
ON
Existed
OFF
Not existed
JSIIA1551ZZ
Blower fan resistor
Resistance:
Ω
(Approx.)
Terminal
1
2
0.43
3
1.03
4
3
HAC-104
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
MAGNET CLUTCH
MAGNET CLUTCH
Component Function Check
INFOID:0000000006024123
1.
PERFORM AUTO ACTIVE TEST
Perform IPDM E/R auto active test. Refer to
XX-XX, "*****"
.
Does the magnet clutch operate?
YES
>> INSPECTION END
NO
>> Refer to
HAC-104, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000006024124
1.
CHECK MAGNET CLUTCH
1.
Turn the ignition switch OFF.
2.
Disconnect the magnet clutch connector.
3.
Directly apply the battery voltage to the magnet clutch. Check for operation visually and by sound.
Does it operate normally?
YES
>> GO TO 2.
NO
>> Replace the compressor.
2.
CHECK MAGNET CLUTCH CIRCUIT CONTINUITY
1.
Turn the ignition switch OFF.
2.
Disconnect the IPDM E/R connector.
3.
Check continuity between magnet clutch harness connector and IPDM E/R harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harnesses and connectors.
3.
CHECK FUSE
Check 10A fuse (No. 43, located in the IPDM E/R).
NOTE:
Refer to
XX-XX, "*****"
.
Is the inspection result normal?
YES
>> Replace the IPDM E/R.
NO
>> Replace the fuse after repairing the applicable circuit.
IPDM E/R
Magnet clutch
Continuity
Connector
Terminal
Connector
Terminal
E14
64
F17
1
Existed
A/C SWITCH
HAC-105
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
A/C SWITCH
Description
INFOID:0000000006024125
• Each signal is sent to BCM by pressing the A/C switch.
• BCM judges the recognition that A/C switch is ON or OFF according to input switch signal.
Component Function Check
INFOID:0000000006024126
1.
CHECK A/C SWITCH SIGNAL
With CONSULT-III
1.
Turn the ignition switch ON.
2.
Select the “AIR COND SW” on “DATA MONITOR” in BCM.
3.
Check the A/C switch signal when A/C switch is operated.
Is inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
HAC-105, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000006024127
1.
CHECK FUSE
Check 10A fuse [NO. 15, located in the fuse block (J/B)].
NOTE:
Refer to
XX-XX, "*****"
.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Replace fuse after repairing the applicable circuit.
2.
CHECK THERMO CONTROL AMP. POWER SUPPLY CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the thermo control amp. connector.
3.
Turn the ignition switch ON.
4.
Check voltage between thermo control amp. harness connector and the ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harness or connector between thermo control amp. and fuse.
3.
CHECK A/C SWITCH SIGNAL OUTPUT
1.
Turn the ignition switch OFF.
2.
Disconnect the A/C control connector.
3.
Turn the ignition switch ON.
4.
Check output waveform between A/C switch harness connector and the ground with using oscilloscope.
Monitor item
Condition
Status
AIR COND SW
A/C switch
While pushing
On
While not pushing
Off
(+)
(
−
)
Voltage
(Approx.)
Thermo control amp.
—
Connector
Terminal
M44
1
Ground
Battery voltage
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