Nissan Cube. Instruction — part 579
HAC-154
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
BLOWER MOTOR
BLOWER MOTOR
Description
INFOID:0000000009951072
COMPONENT DESCRIPTION
Blower Motor
• The blower motor is installed in the RH side of A/C unit assembly.
• The blower motor adopts the forcible air cooling system and one-
touch installation system without any screws.
Blower Fan Resistor
• Compact and lightweight resistor is adopted with outstanding venti-
lation.
• Temperature fuse is installed to protects the blower motor circuit.
Diagnosis Procedure
INFOID:0000000009951073
1.
CHECK FUSE
Check 15A fuses [Nos. 15 and 17, located in the fuse block (J/B)].
NOTE:
Refer to
PG-77, "Fuse, Connector and Terminal Arrangement"
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace fuse after repairing the applicable circuit.
2.
CHECK POWER SUPPLY FOR BLOWER MOTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the blower motor connector.
3.
Turn the ignition switch ON.
4.
Check voltage between blower motor harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
CHECK BLOWER RELAY
JPIIA1575ZZ
ZJIA0545J
(+)
(
−
)
Voltage
(Approx.)
Blower motor
—
Connector
Terminal
M39
1
Ground
Battery voltage
BLOWER MOTOR
HAC-155
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
1.
Turn the ignition switch OFF.
2.
Perform the component inspection of blower motor relay. Refer to
HAC-156, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace the harness or connector between blower motor and fuse.
NO
>> Replace the blower relay.
4.
CHECK FAN SWITCH GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the fan switch connector.
3.
Check continuity between fan switch harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair the harness or connector.
5.
CHECK CONTINUITY BETWEEN FAN SWITCH AND BLOWER MOTOR
Check continuity fan switch harness connector and blower motor harness connector.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair the harness or connector.
6.
CHECK VOLTAGE BETWEEN BLOWER FAN RESISTOR AND GROUND
1.
Disconnect the blower fan resistor connector.
2.
Turn the ignition switch ON.
3.
Check voltage between blower fan resistor harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair the harness or connector between blower fan resistor and blower motor.
7.
CHECK BLOWER FAN RESISTOR
1.
Turn the ignition switch OFF.
2.
Perform the component inspection of blower fan resistor. Refer to
HAC-156, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace the blower fan resistor.
8.
CHECK CIRCUIT CONTINUITY BETWEEN FAN SWITCH AND BLOWER FAN RESISTOR
Check continuity between fan switch harness connector and blower fan resistor.
Fan switch
—
Continuity
Connector
Terminal
M73
3
Ground
Existed
Fan switch
Blower motor
Continuity
Connector
Terminal
Connector
Terminal
M73
5
M39
2
Existed
(+)
(
−
)
Voltage
(Approx.)
Blower fan resistor
—
Connector
Terminal
M306
3
Ground
12 V
HAC-156
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
BLOWER MOTOR
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair the harness or connector.
9.
CHECK FAN SWITCH
Perform the component inspection of fan switch. Refer to
HAC-156, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace the blower motor.
NO
>> Replace the fan switch (A/C control).
Component Inspection
INFOID:0000000009951074
BLOWER MOTOR
1.
CHECK BLOWER MOTOR
1.
Remove the blower motor. Refer to
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.
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
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 FAN RESISTOR
Fan switch
Blower fan resistor
Continuity
Connector
Terminal
Connector
Terminal
M73
4
M306
4
Existed
1
1
2
2
Blower motor relay
Voltage
Continuity
Terminal
3
5
ON
Existed
OFF
Not existed
JSIIA1551ZZ
BLOWER MOTOR
HAC-157
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
1.
CHECK BLOWER MOTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the blower fan resistor connector.
3.
Check the resistance between blower fan resistor terminals. Refer to the applicable table for the normal
value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the blower fan resistor.
FAN SWITCH
1.
CHECK FAN SWITCH
1.
Turn the ignition switch OFF.
2.
Disconnect the fan switch connector.
3.
Check the fan switch circuit continuity.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the fan switch (A/C control).
Blower fan resistor
Resistance:
Ω
(Approx.)
Terminal
3
4
0.43
1
1.03
2
3
Fan switch
Condition
Continuity
Terminal
Dial position
3
2
1st
Existed
1
2nd
4
3rd
5
4th
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст