Nissan Juke F15. Instruction — part 862
BLOWER MOTOR
HAC-83
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> Replace power transistor. Refer to
HAC-99, "Removal and Installation"
.
NO
>> GO TO 10.
10.
CHECK POWER TRANSISTOR CONTROL SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect power transistor connector and A/C auto amp. connector.
3. Check continuity between power transistor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair harness or connector.
11.
CHECK POWER TRANSISTOR CONTROL SIGNAL CIRCUIT FOR SHORT
Check continuity between power transistor harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-93, "Removal and Installation"
NO
>> Repair harness or connector.
Component Inspection (Blower Motor)
INFOID:0000000012200070
1.
CHECK BLOWER MOTOR
1. Remove blower motor. Refer to
VTL-14, "Removal and Installation"
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 blower motor. Refer to
VTL-14, "Removal and Installation"
.
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 blower motor. Refer to
VTL-14, "Removal and Installation"
.
+
−
Condition
Duty ratio
(Approx.)
Output waveform
Power transistor
Connector
Terminal
Fan speed (instruction)
Air outlet: VENT
M344
2
Ground
1st
26%
2nd
34%
3rd
41%
4th
51%
5th
62%
6th
73%
7th
82%
JPIIA1646GB
Power transistor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M344
2
M50
13
Existed
Power transistor
—
Continuity
Connector
Terminal
M344
2
Ground
Not existed
HAC-84
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
BLOWER MOTOR
3.
CHECK BLOWER MOTOR
Check that blower motor turns smoothly.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace blower motor. Refer to
VTL-14, "Removal and Installation"
.
Component Inspection (Blower Relay)
INFOID:0000000012200071
1.
CHECK BLOWER RELAY
1. Remove blower relay. Refer to
PG-80, "Fuse, Connector and Terminal Arrangement"
2. Check continuity between 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 blower relay.
Terminal
Voltage
Continuity
3
5
ON
Existed
OFF
Not existed
JSIIA1551ZZ
MAGNET CLUTCH
HAC-85
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
MAGNET CLUTCH
Component Function Check
INFOID:0000000012200072
1.
CHECK MAGNET CLUTCH OPERATION
Perform auto active test of IPDM E/R. Refer to
PCS-12, "Diagnosis Description"
.
Does it operate normally?
YES
>> INSPECTION END
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000012200073
1.
CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10A fuse (No. 49, located in IPDM E/R).
NOTE:
PG-82, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK MAGNET CLUTCH
1. Disconnect compressor connector.
2. Directly apply battery voltage to the magnet clutch. Check for operation visually and by sound.
Does it operate normally?
YES
>> GO TO 3.
NO
>> Replace magnet clutch. Refer to
HA-30, "MAGNET CLUTCH : Removal and Installation of Com-
3.
CHECK MAGNET CLUTCH POWER SUPPLY CIRCUIT FOR OPEN
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector and compressor harness connector.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-37, "Removal and Installation"
.
NO
>> Repair harness or connector.
IPDM E/R
Compressor
Continuity
Connector
Terminal
Connector
Terminal
E15
56
F17
1
Existed
HAC-86
< SYMPTOM DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
AUTOMATIC AIR CONDITIONER SYSTEM
SYMPTOM DIAGNOSIS
AUTOMATIC AIR CONDITIONER SYSTEM
Symptom Table
INFOID:0000000012200074
NOTE:
Perform self-diagnoses with CONSULT before performing the symptom diagnosis. If any DTC is detected,
perform the corresponding diagnosis.
Symptom
Corresponding malfunction part
Check item/Reference
• Air conditioning system does
not activate.
• Air conditioning system can-
not be controlled.
• Operation status of air condi-
tioning system is not indicat-
ed on display.
Fail-safe activates
Multi display unit
Fail-safe does not acti-
vate
• A/C auto amp. ignition power supply
and ground circuit
• A/C auto amp.
HAC-75, "A/C AUTO AMP. : Di-
agnosis Procedure"
Discharge air temperature does not change.
Air mix door motor system installation
condition
Check air mix door motor sys-
tem is properly installed. Refer
to
.
Air outlet does not change.
Mode door motor system installation
condition
Check mode door motor system
is properly installed. Refer to
.
Air inlet does not change.
Intake door motor system installation
condition
Check intake door motor system
is properly installed. Refer to
.
Blower motor does not operates or operation speed is not
normal.
• Blower motor power supply circuit
• Blower motor control circuit
• A/C auto amp. ignition power supply
circuit
• Power transistor power supply and
ground circuit
• Power transistor control signal cir-
cuit
• Blower motor
• Power transistor
• A/C auto amp.
Compressor does not operate.
• Magnet clutch
• The circuit between magnet clutch
and IPDM E/R
• IPDM E/R (A/C relay)
• The circuit between ECM and refrig-
erant pressure sensor
• Refrigerant pressure sensor
• A/C ON signal circuit
• Blower fan ON signal circuit
• A/C auto amp.
• Insufficient cooling
• No cool air comes out. (Air flow volume is normal.)
• Magnet clutch control system
• Drive belt slipping
• Cooler cycle
• Air leakage from each duct
• A/C auto amp. connection recogni-
tion signal circuit
• Temperature setting trimmer
• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)
• Engine cooling system
• Heater hose
• Heater core
• Air leakage from each duct
• Temperature setting trimmer
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