Qashqai J11. Heater & Air conditioning Control System — part 19
BLOWER MOTOR
HAC-289
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL HEATER ]
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HAC
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Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace fan control amp. Refer to
HAC-298, "Removal and Installation"
.
HAC-290
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL HEATER ]
PTC HEATER
PTC HEATER
Component Function Check
INFOID:0000000010499429
1.
CHECK PTC HEATER OPERATION
1.
Start the engine.
2.
Operate blower motor.
3.
Operate temperature control dial to full hot position.
4.
Check for warm air at discharge air outlet.
NOTE:
• Engine must be cold.
• Battery must be charged.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
HAC-290, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000010499430
1.
CHECK FUSE AND FUSIBLE LINK
1.
Turn ignition switch OFF.
2.
Check 30 A fuses (Nos. 35, 36 and 40).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse is blown.
2.
CHECK PTC RELAY POWER SUPPLY
1.
Disconnect PTC relay connector.
2.
Turn ignition switch ON.
3.
Check voltage between PTC relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector between PTC relay and fuse.
3.
CHECK PTC RELAY CONTROL SIGNAL CIRCUIT FOR OPEN
1.
Disconnect BCM connector.
2.
Check continuity between PTC relay harness connector and BCM harness connector.
Is the inspection result normal?
Relay
+
−
Voltage
PTC relay
Connector
Terminal
1
E27
2
Ground
Battery voltage
3
2
E28
2
3
3
E29
2
3
PTC relay
BCM
Continuity
Relay
Connector
Terminal
Connector
Terminal
1
E27
1
E60
172
Existed
2
E28
173
3
E29
170
PTC HEATER
HAC-291
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL HEATER ]
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YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK PTC HEATER POWER SUPPLY CIRCUIT FOR OPEN
Check continuity between PTC relay harness connector and PTC heater harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK PTC HEATER GROUND CIRCUIT FOR OPEN
Check continuity between PTC heater harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK PTC RELAY
Check PTC relay. Refer to
HAC-291, "Component Inspection (PTC Relay)"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace malfunctioning PTC relay.
7.
CHECK PTC HEATER
Check PTC heater. Refer to
HAC-292, "Component Inspection (PTC Heater)"
.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-135, "Removal and Installation"
.
NO
>> Replace PTC heater. Refer to
HAC-297, "Removal and Installation"
.
Component Inspection (PTC Relay)
INFOID:0000000010499431
1.
CHECK PTC RELAY
1.
Remove PTC relay.
2.
Check continuity between PTC relay terminals 3 and 5 when the
voltage is supplied between terminals 1 and 2.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace malfunctioning PTC relay.
PTC relay
PTC heater
Continuity
Relay
Connector
Terminal
Connector
Terminal
1
E27
5
E140
1
Existed
2
E28
3
3
E29
5
PTC heater
—
Continuity
Connector
Terminal
E140
2
Ground
Existed
4
Terminal
Voltage
Continuity
3
5
ON
Existed
OFF
Not existed
JSIIA1551ZZ
HAC-292
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL HEATER ]
PTC HEATER
Component Inspection (PTC Heater)
INFOID:0000000010499432
1.
CHECK PTC HEATER
Check resistance between PTC heater terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace PTC heater. Refer to
HAC-297, "Removal and Installation"
.
Terminal
Resistance (
Ω
)
1
2
Except 0 or
∞
3
2 and 4
5
4
MANUAL HEATER SYSTEM
HAC-293
< SYMPTOM DIAGNOSIS >
[MANUAL HEATER ]
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SYMPTOM DIAGNOSIS
MANUAL HEATER SYSTEM
Symptom Table
INFOID:0000000010433477
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 cannot be controlled.
• A/C amp. power supply or ground cir-
cuit
• A/C amp.
Check A/C amp. power supply and
ground circuits.
HAC-284, "A/C AMP. : Diagnosis
Procedure"
Discharge air temperature does not change.
Air mix door motor system installation
condition
Check air mix door motor system 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.
• A/C amp. ignition power supply sig-
nal circuit
• Fan control amp. power supply circuit
• Fan control amp. ground circuit
• Fan control amp. control signal circuit
• Blower motor
• Fan control amp.
• A/C amp.
Check blower motor circuits.
HAC-285, "Diagnosis Procedure"
Blower motor operates at the maxi-
mum fan speed and fan speed can-
not be selected.
Blower motor
can be switched
to OFF.
• A/C amp. ignition power supply sig-
nal circuit
• Blower motor feedback signal circuit
• A/C amp.
Blower motor
cannot be
switched to
OFF.
• Blower motor feedback signal circuit
• A/C amp. power supply circuit
• Fan control amp. power supply circuit
• Fan control amp. control signal circuit
• Fan control amp.
• A/C amp.
• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)
• Engine cooling system
• Heater hose
• Heater core
• Air leakage from each duct
• PTC heater system
HAC-294, "Diagnosis Procedure"
Noise is heard when the manual heater operates.
• Mixing any foreign object in blower
motor
• Blower motor fan breakage
• Blower motor rotation inferiority
Check blower motor.
HAC-294
< SYMPTOM DIAGNOSIS >
[MANUAL HEATER ]
INSUFFICIENT HEATING
INSUFFICIENT HEATING
Description
INFOID:0000000010433480
Symptom
• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)
Diagnosis Procedure
INFOID:0000000010433481
NOTE:
Perform self-diagnoses with CONSULT before performing symptom diagnosis. If any DTC is detected, per-
form the corresponding diagnosis.
1.
CHECK COOLING SYSTEM
1.
Check engine coolant level and check for leakage. Refer to
(HRA2DDT engine mod-
els),
(K9K engine models) or
(R9M engine models).
2.
Check radiator cap. Refer to
engine models) or
(R9M engine models).
3.
Check water flow sounds of the engine coolant. Refer to
(R9M engine models).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Refill engine coolant and repair or replace the parts depending on the inspection results.
2.
CHECK HEATER HOSE
Check installation of heater hose by visually or touching.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace parts depending on the inspection results.
3.
CHECK HEATER CORE
1.
Check temperature of inlet hose and outlet hose of heater core.
2.
Check that inlet side of heater core is hot and the outlet side is slightly lower than/almost equal to the inlet
side.
CAUTION:
Always perform the temperature inspection in a short period of time because the engine coolant
temperature is very hot.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace heater core. Refer to
HA-46, "HEATER CORE : Removal and Installation"
(HRA2DDT
engine models) or
HA-90, "HEATER CORE : Removal and Installation"
models).
4.
CHECK AIR LEAKAGE FROM EACH DUCT
Check duct and nozzle, etc. of the air conditioning system for air leakage.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace parts depending on the inspection results.
5.
CHECK PTC HEATER
Perform PTC heater diagnosis. Refer to
HAC-290, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace parts depending on the inspection results.
HEATER CONTROL (A/C AMP.)
HAC-295
< REMOVAL AND INSTALLATION >
[MANUAL HEATER ]
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REMOVAL AND INSTALLATION
HEATER CONTROL (A/C AMP.)
Exploded View
INFOID:0000000010433484
.
Removal and Installation
INFOID:0000000010433485
REMOVAL
1.
Disengage fixing metal clips and pawls, and then remove A/C
control from instrument panel assembly according to numerical
order 1
→
2 indicated by arrows as shown in the figure.
2.
Disconnect harness connectors.
INSTALLATION
Install in the reverse order of removal.
: Pawl
: Metal clip
JMIIA3390ZZ
HAC-296
< REMOVAL AND INSTALLATION >
[MANUAL HEATER ]
AMBIENT SENSOR
AMBIENT SENSOR
Removal and Installation
INFOID:0000000010433487
REMOVAL
1.
Remove front bumper fascia assembly. Refer to
EXT-20, "Removal and Installation"
2.
Disconnect harness connector
.
3.
Disengage fixing pawl, and then remove ambient sensor.
INSTALLATION
Install in the reverse order of removal.
: Pawl
JMIIA3393ZZ
PTC HEATER
HAC-297
< REMOVAL AND INSTALLATION >
[MANUAL HEATER ]
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HAC
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PTC HEATER
Removal and Installation
INFOID:0000000010500717
REMOVAL
1.
Remove instrument lower cover RH (RHD models) or glove box cover (LHD models). Refer to
2.
Disconnect PTC heater connector.
3.
Remove fixing screws
, and then remove PTC heater from A/
C unit assembly.
INSTALLATION
Install in the reverse order of removal.
JMIIA3532ZZ
HAC-298
< REMOVAL AND INSTALLATION >
[MANUAL HEATER ]
FAN CONTROL AMPLIFIER
FAN CONTROL AMPLIFIER
Exploded View
INFOID:0000000010433494
.
Removal and Installation
INFOID:0000000010433495
REMOVAL
1.
Remove instrument lower panel LH (LHD models) or glove box cover (RHD models). Refer to
2.
Disconnect power transistor harness connector.
3.
Remove fixing screws
, and then remove fan control amplifier.
INSTALLATION
Install in the reverse order of removal.
JMIIA3400ZZ
DOOR MOTOR
HAC-299
< REMOVAL AND INSTALLATION >
[MANUAL HEATER ]
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HAC
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DOOR MOTOR
Exploded View
INFOID:0000000010433496
LEFT SIDE
RIGHT SIDE
A/C unit assembly
Intake door lever
Intake door link
Intake door motor
Air mix door motor LH
JMIIA3368GB
HAC-300
< REMOVAL AND INSTALLATION >
[MANUAL HEATER ]
DOOR MOTOR
AIR MIX DOOR MOTOR
AIR MIX DOOR MOTOR : Removal and Installation
INFOID:0000000010433497
REMOVAL
Air Mix Door Motor LH
1.
Set the temperature at 18
°
C (64
°
F).
CAUTION:
Always perform the above procedure when removing air mix door motor. Otherwise, air mix door
may interfere in A/C unit assembly may be damaged.
2.
Remove instrument lower panel LH (LHD models) or glove box cover (RHD models). Refer to
3.
Remove foot duct LH. Refer to
VTL-14, "FOOT DUCT : Removal and Installation"
.
4.
Disconnect air mix door motor harness connector.
5.
Remove fixing screws
, and then remove air mix door motor
LH.
A/C unit assembly
Side ventilator door lever
Foot door link
Foot door link
Main link
Mode door link
Mode door motor
JMIIA3531ZZ
JMIIA3395ZZ
DOOR MOTOR
HAC-301
< REMOVAL AND INSTALLATION >
[MANUAL HEATER ]
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HAC
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INSTALLATION
Note the following item, and then install in the reverse order of removal.
CAUTION:
After installing door motor, perform door motor starting position. Refer to
INTAKE DOOR MOTOR
INTAKE DOOR MOTOR : Removal and Installation
INFOID:0000000010433498
REMOVAL
1.
Remove instrument lower panel LH (LHD models) or glove box cover (RHD models). Refer to
2.
Disconnect intake door motor harness connector.
3.
Remove fixing screws
, and then remove intake door motor.
INSTALLATION
Install in the reverse order of removal.
MODE DOOR MOTOR
MODE DOOR MOTOR : Removal and Installation
INFOID:0000000010433499
REMOVAL
1.
Remove instrument lower panel RH (RHD models) or glove box cover (LHD models). Refer to
2.
Remove foot duct RH. Refer to
VTL-14, "FOOT DUCT : Removal and Installation"
3.
Disconnect mode door motor harness connector.
4.
Remove fixing screws
, mode door motor.
INSTALLATION
Note the following item, and then install in the reverse order of removal.
CAUTION:
After installing door motor, perform door motor starting position. Refer to
JMIIA3394ZZ
JMIIA3396ZZ
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