Nissan Cube. Instruction — part 555
HAC-58
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
BLOWER MOTOR
1.
CHECK BLOWER MOTOR
1.
Remove the blower motor relay. Refer to
PG-77, "Fuse, Connector and Terminal Arrangement"
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
MAGNET CLUTCH
HAC-59
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
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HAC
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MAGNET CLUTCH
Description
INFOID:0000000009951004
• The magnet clutch is the device that drives the compressor with the signal from IPDM E/R.
• Compressor is driven by the magnet clutch which is charged magnetic force by electrified.
• IPDM E/R controls magnet clutch by turning the built in A/C relay to ON
⇔
OFF according to ECM request.
Component Function Check
INFOID:0000000009951005
1.
CHECK MAGNET CLUTCH OPERATION
Perform auto active test of IPDM E/R. Refer to
PCS-10, "Diagnosis Description"
(WITHOUT I-KEY).
Does it operate normally?
YES
>> INSPECTION END
NO
>> Go to diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000009951006
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 magnet clutch. Refer to
HA-33, "MAGNET CLUTCH : Removal and Installation"
.
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. 49, located in the IPDM E/R).
NOTE:
Refer to
PG-79, "Fuse, Connector and Terminal Arrangement"
.
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
E15
56
F17
1
Existed
HAC-60
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
A/C ON SIGNAL
A/C ON SIGNAL
Component Function Check
INFOID:0000000009951007
1.
CHECK A/C ON SIGNAL
With CONSULT
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:0000000009951008
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
M51
34
Ground
A/C switch ON
ZJIA1036J
A/C auto amp.
BCM
Continuity
Connector
Terminal
Connector
Terminal
M51
34
M65 (WITHOUT I-KEY)
M68 (WITH I-KEY)
27
Existed
A/C ON SIGNAL
HAC-61
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
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3.
CHECK THE CONTINUITY BETWEEN A/C AUTO AMP. AND GROUND
Check continuity between A/C auto amp. harness connector and ground.
Is inspection result normal?
YES
>> Replace the BCM. Refer to
(WITH I-KEY) or
(WITHOUT I-KEY).
NO
>> Repair the harnesses or connectors.
A/C auto amp.
—
Continuity
Connector
Terminal
M51
34
Ground
Not existed
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