Nissan Quest E52. Instruction — part 745
HAC-110
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
FRONT MODE DOOR MOTOR
FRONT MODE DOOR MOTOR
Diagnosis Procedure
INFOID:0000000009652563
1.
CHECK FRONT MODE DOOR MOTOR POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between front mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK FRONT MODE DOOR MOTOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front mode door motor and A/C auto amp. connector.
3.
Check continuity between front mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK FRONT MODE DOOR MOTOR LAN SIGNAL
1.
Connect front mode door motor and A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between front mode door motor harness connector and ground using oscillo-
scope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK INSTALLATION OF FRONT MODE DOOR MOTOR
Check front mode door motor is properly installed. Refer to
Is the inspection result normal?
YES
>> Replace front mode door motor. Refer to
HAC-151, "FRONT MODE DOOR MOTOR : Removal
.
+
−
Voltage
Front mode door motor
Connector
Terminal
M310
1
Ground
9.5 – 13.5 V
Front mode door motor
—
Continuity
Connector
Terminal
M310
2
Ground
Existed
+
−
Output waveform
Front mode door motor
Connector
Terminal
M310
3
Ground
SJIA1453J
FRONT MODE DOOR MOTOR
HAC-111
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
NO
>> Repair or replace malfunctioning part.
5.
CHECK FRONT MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front mode door motor and A/C auto amp. connector.
3.
Check continuity between front mode door motor harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Repair harness or connector.
6.
CHECK FRONT MODE DOOR MOTOR LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front mode door motor and A/C auto amp. connector.
3.
Check continuity between front mode door motor harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Repair harness or connector.
Front mode door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M310
1
M50
4
Existed
Front mode door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M310
3
M50
5
Existed
HAC-112
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
INTAKE DOOR MOTOR
INTAKE DOOR MOTOR
Diagnosis Procedure
INFOID:0000000009652564
1.
CHECK INTAKE DOOR MOTOR POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between intake door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK INTAKE DOOR MOTOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect intake door motor and A/C auto amp. connector.
3.
Check continuity between intake door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK INTAKE DOOR MOTOR LAN SIGNAL
1.
Connect intake door motor and A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between intake door motor harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK INSTALLATION OF INTAKE DOOR MOTOR
Check intake door motor is properly installed. Refer to
.
Is the inspection result normal?
YES
>> Replace intake door motor. Refer to
HAC-153, "INTAKE DOOR MOTOR : Removal and Installa-
.
NO
>> Repair or replace malfunctioning part.
+
−
Voltage
Intake door motor
Connector
Terminal
M304
1
Ground
9.5 – 13.5 V
Intake door motor
—
Continuity
Connector
Terminal
M304
2
Ground
Existed
+
−
Output waveform
Intake door motor
Connector
Terminal
M304
3
Ground
SJIA1453J
INTAKE DOOR MOTOR
HAC-113
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
5.
CHECK INTAKE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect intake door motor and A/C auto amp. connector.
3.
Check continuity between intake door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Repair harness or connector.
6.
CHECK INTAKE DOOR MOTOR LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect intake door motor and A/C auto amp. connector.
3.
Check continuity between intake door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Repair harness or connector.
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M304
1
M50
4
Existed
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M304
3
M50
5
Existed
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