Nissan March K13. Instruction — part 381
HAC-58
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
BLOWER MOTOR
NO
>> GO TO 5.
5.
CHECK CONTINUITY BETWEEN BLOWER MOTOR AND FAN CONTROL AMP.
1.
Turn the ignition switch OFF.
2.
Disconnect the blower motor connector.
3.
Check continuity between blower motor harness connector and fan control amp. harness connector.
Is the inspection result normal?
YES
>> Replace the blower motor.
NO
>> Repair the harnesses or connectors.
6.
CHECK CONTINUITY BETWEEN FAN CONTROL AMP. AND GROUND
Check continuity between fan control amp. harness connector and the ground.
Is inspection result normal?
YES
>> GO TO 7.
NO
>> Repair the harnesses or connectors.
7.
CHECK A/C AUTO AMP. OUTPUT SIGNAL
1.
Connect the blower motor connector and the fan control amp. connector.
2.
Turn the ignition switch ON.
3.
Set fan control to 1st speed.
4.
Check voltage between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp.
NO
>> Replace fan control amp.
Component Inspection
INFOID:0000000006024047
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.
Blower motor
Fan control amp.
Continuity
Connector
Terminal
Connector
Terminal
M39
2
M81
1
Existed
Blower motor
—
Continuity
Connector
Terminal
M81
3
Ground
Existed
(+)
(
−
)
Voltage
(Approx.)
A/C auto amp.
Connector
Terminal
M50
30
Ground
2.5
BLOWER MOTOR
HAC-59
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
3.
CHECK BLOWER MOTOR
Check that the blower motor turns smoothly.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the blower motor.
BLOWER MOTOR RELAY
1.
CHECK BLOWER MOTOR
1.
Remove the blower motor relay. Refer to
XX-XX, "*****"
.
2.
Check the continuity between the blower motor 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 motor relay.
Blower motor relay
Voltage
Continuity
Terminal
3
5
ON
Existed
OFF
Not existed
JSIIA1551ZZ
HAC-60
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
MAGNET CLUTCH
MAGNET CLUTCH
Component Function Check
INFOID:0000000006024049
1.
CHECK MAGNET CLUTCH OPERATION
Perform auto active test of IPDM E/R. Refer to
XX-XX, "*****"
(WITH I-KEY) or
XX-XX, "*****"
(WITHOUT I-
KEY).
Does it operate normally?
YES
>> INSPECTION END
NO
>> Go to diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000006024050
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 ON SIGNAL
HAC-61
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
A/C ON SIGNAL
Component Function Check
INFOID:0000000006024051
1.
CHECK A/C ON SIGNAL
With CONSULT-III
1.
Turn the ignition switch ON.
2.
Select the “COMP REQ SIG” in “DATA MONITOR”.
3.
Check A/C ON signal when the A/C switch is operated.
Is inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000006024052
1.
CHECK A/C SWITCH SIGNAL
1.
Turn the ignition switch ON.
2.
Check output waveform between A/C auto amp. harness connector and the ground with using oscillo-
scope.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the A/C auto amp.
2.
CHECK CONTINUITY BETWEEN A/C AUTO AMP. AND BCM
1.
Turn the ignition switch OFF.
2.
Disconnect the A/C auto amp. connector.
3.
Disconnect the BCM connector.
4.
Check continuity between A/C auto amp. harness connector and BCM harness connector.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
Monitor item
Condition
Status
COMP REQ SIG
A/C control
A/C system ON
(Indicator ON)
On
A/C system OFF
(Indicator OFF)
Off
(+)
(
−
)
Condition
Output waveform
A/C auto amp.
—
Connector
Terminal
M50
13
Ground
A/C switch ON
ZJIA1036J
A/C auto amp.
BCM
Continuity
Connector
Terminal
Connector
Terminal
M50
13
M65 (WITHOUT I-KEY)
M68 (WITH I-KEY)
27
Existed
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