Nissan Cube. Instruction — part 580
HAC-158
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
MAGNET CLUTCH
MAGNET CLUTCH
Description
INFOID:0000000009951075
• 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:0000000009951076
1.
PERFORM AUTO ACTIVE TEST
Perform IPDM E/R auto active test. Refer to
PCS-41, "Diagnosis Description"
Does the magnet clutch operate?
YES
>> INSPECTION END
NO
>> Refer to
HAC-158, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009951077
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
A/C SWITCH
HAC-159
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
A/C SWITCH
Description
INFOID:0000000009951078
• 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:0000000009951079
1.
CHECK A/C SWITCH SIGNAL
With CONSULT
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-159, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009951080
1.
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.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK CONTINUITY A/C CONTROL GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Check continuity between A/C control harness connector and the ground.
Is inspection result normal?
Monitor item
Condition
Status
AIR COND SW
A/C switch
While pushing
On
While not pushing
Off
(+)
(
−
)
Output waveform
A/C control
—
Connector
Terminal
M53
12
Ground
Approx. 1.0
∼
1.5 V
JPMIA0012GB
A/C control
—
Continuity
Connector
Terminal
M53
15
Ground
Existed
HAC-160
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
A/C SWITCH
YES
>> Replace the A/C switch (A/C control).
NO
>> Repair the harness or connector.
3.
CHECK CONTINUITY BETWEEN A/C CONTROL AND BCM
1.
Turn the ignition switch OFF.
2.
Disconnect the BCM connector.
3.
Check continuity between A/C control harness connector and BCM harness connector.
With Intelligent Key
Without Intelligent Key
Is inspection result normal?
YES
>> GO TO 4.
NO
>> Repair the harness or connector.
4.
CHECK CONTINUITY BETWEEN A/C CONTROL AND GROUND
Check continuity between A/C control harness connector and the ground.
Is inspection result normal?
YES
.
NO
>> Repair the harness or connector.
A/C control
BCM
Continuity
Connector
Terminal
Connector
Terminal
M53
12
M68
27
Existed
A/C control
BCM
Continuity
Connector
Terminal
Connector
Terminal
M53
12
M65
27
Existed
A/C control
—
Continuity
Connector
Terminal
M53
12
Ground
Not existed
DEFROSTER POSITION SIGNAL
HAC-161
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
DEFROSTER POSITION SIGNAL
Description
INFOID:0000000009951081
• Each signal is sent to BCM by setting the D/F or DEF position.
• BCM judges the change of the air inlet and recognition of A/C switch ON or OFF according to input switch
signal.
Component Function Check
INFOID:0000000009951082
1.
CHECK DEFROSTER POSITION SIGNAL
With CONSULT
1.
Turn the ignition switch ON.
2.
Select the “FR DEF 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-161, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009951083
1.
CHECK VOLTAGE BETWEEN A/C CONTROL AND GROUND
1.
Turn the ignition switch OFF.
2.
Disconnect the A/C control connector.
3.
Turn the ignition switch ON.
4.
Check voltage between A/C control harness connector and the ground.
Is inspection result normal?
YES
>> Replace the A/C control.
NO
>> GO TO 2.
2.
CHECK CONTINUITY BETWEEN A/C CONTROL AND BCM
1.
Turn the ignition switch OFF.
2.
Disconnect the BCM connector.
3.
Check continuity between A/C control harness connector and BCM harness connector.
With Intelligent Key
Without Intelligent Key
Is inspection result normal?
Monitor item
Condition
Status
FR DEF SW
MODE position
D/F or DEF
On
VENT, B/L or FOOT
Off
(+)
(
−
)
Voltage
(Approx.)
A/C control
—
Connector
Terminal
M53
6
Ground
12 V
A/C control
BCM
Continuity
Connector
Terminal
Connector
Terminal
M53
6
M71
103
Existed
A/C control
BCM
Continuity
Connector
Terminal
Connector
Terminal
M53
6
M66
31
Existed
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