Nissan Quest E52. Instruction — part 771
HAC-214
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
REAR MODE DOOR MOTOR
NO
>> Repair or replace malfunctioning part.
5.
CHECK REAR MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect rear mode door motor and A/C amp. connector.
3.
Check continuity between rear mode door motor harness connector and A/C amp. harness connector.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C amp.). Refer to
HAC-238, "Removal and Installation"
.
NO
>> Repair harness or connector.
6.
CHECK REAR MODE DOOR MOTOR LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect rear mode door motor and A/C amp. connector.
3.
Check continuity between rear mode door motor harness connector and A/C amp. harness connector.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C amp.). Refer to
HAC-238, "Removal and Installation"
.
NO
>> Repair harness or connector.
Rear mode door motor
A/C amp.
Continuity
Connector
Terminal
Connector
Terminal
B405
1
M49
4
Existed
Rear mode door motor
A/C amp.
Continuity
Connector
Terminal
Connector
Terminal
B405
3
M49
5
Existed
DOOR MOTOR
HAC-215
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
DOOR MOTOR
Diagnosis Procedure
INFOID:0000000009652657
NOTE:
Check this circuit when all door motor system malfunction are detected.
1.
CHECK 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 7.
2.
CHECK DOOR MOTOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect intake door motor and A/C 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 DOOR MOTOR LAN SIGNAL
1.
Connect A/C amp. and intake door motor connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between A/C amp. harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK DOOR MOTOR LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C amp. and intake door motor connector.
3.
Check continuity between A/C amp. harness connector and intake door motor harness connector.
+
−
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
A/C amp.
Connector
Terminal
M49
5
Ground
SJIA1453J
HAC-216
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
DOOR MOTOR
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
>> INSPECTION END
6.
CHECK DOOR MOTOR LAN SIGNAL CIRCUIT FOR SHORT
1.
Turn ignition switch OFF.
2.
Disconnect following connectors.
-
A/C amp.
-
Front air mix door motor
-
Front mode door motor
-
Intake door motor
-
Rear air mix door motor
-
Rear mode door motor
3.
Check continuity between A/C amp. harness connector and ground.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C amp.). Refer to
HAC-238, "Removal and Installation"
.
NO
>> Repair harness or connector.
7.
CHECK DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect intake door motor and A/C amp. connector.
3.
Check continuity between intake door motor harness connector and A/C amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair harness or connector.
8.
CHECK DOOR MOTOR POWER SUPPLY CIRCUIT FOR SHORT
1.
Disconnect following connectors.
-
A/C amp.
-
Front air mix door motor
-
Front mode door motor
-
Rear air mix door motor
-
Rear mode door motor
2.
Check continuity between A/C amp. harness connector and ground.
A/C amp.
Intake door motor
Continuity
Connector
Terminal
Connector
Terminal
M49
5
M304
3
Existed
A/C amp.
—
Continuity
Connector
Terminal
M49
5
Ground
Not existed
Intake door motor
A/C amp.
Continuity
Connector
Terminal
Connector
Terminal
M304
1
M49
4
Existed
DOOR MOTOR
HAC-217
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL 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 front A/C control (A/C amp.). Refer to
HAC-238, "Removal and Installation"
NO
>> Repair harness or connector.
A/C amp.
—
Continuity
Connector
Terminal
M49
4
Ground
Not existed
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