Nissan Quest E52. Instruction — part 744
HAC-106
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
FRONT AIR MIX DOOR MOTOR (DRIVER SIDE)
FRONT AIR MIX DOOR MOTOR (DRIVER SIDE)
Diagnosis Procedure
INFOID:0000000009652561
1.
CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between front air mix door motor LH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front air mix door motor LH and A/C auto amp. connector.
3.
Check continuity between front air mix door motor LH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK FRONT AIR MIX DOOR MOTOR (DRIVER SIDE) LAN SIGNAL
1.
Connect front air mix door motor LH and A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between front air mix door motor LH harness connector and ground using oscil-
loscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK INSTALLATION OF FRONT AIR MIX DOOR MOTOR (DRIVER SIDE)
Check front air mix door motor (driver side) is properly installed. Refer to
.
Is the inspection result normal?
YES
>> Replace front air mix door motor (driver side). Refer to
MOTOR : Removal and Installation"
+
−
Voltage
Front air mix door motor LH
Connector
Terminal
M306
1
Ground
9.5 – 13.5 V
Front air mix door motor LH
—
Continuity
Connector
Terminal
M306
2
Ground
Existed
+
−
Output waveform
Front air mix door motor LH
Connector
Terminal
M306
3
Ground
SJIA1453J
FRONT AIR MIX DOOR MOTOR (DRIVER SIDE)
HAC-107
< 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 AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front air mix door motor LH and A/C auto amp. connector.
3.
Check continuity between front air mix door motor LH harness connector and A/C auto amp. harness con-
nector.
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 AIR MIX DOOR MOTOR (DRIVER SIDE) LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front air mix door motor LH and A/C auto amp. connector.
3.
Check continuity between front air mix door motor LH harness connector and A/C auto amp. harness con-
nector.
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 air mix door motor LH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M306
1
M50
4
Existed
Front air mix door motor LH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M306
3
M50
5
Existed
HAC-108
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)
FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)
Diagnosis Procedure
INFOID:0000000009652562
1.
CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between front air mix door motor RH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front air mix door motor RH and A/C auto amp. connector.
3.
Check continuity between front air mix door motor RH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE) LAN SIGNAL
1.
Connect front air mix door motor RH and A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between front air mix door motor RH harness connector and ground using oscil-
loscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK INSTALLATION OF FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)
Check front air mix door motor (passenger side) is properly installed. Refer to
Is the inspection result normal?
YES
>> Replace front air mix door motor (passenger side). Refer to
MOTOR : Removal and Installation"
+
−
Voltage
Front air mix door motor RH
Connector
Terminal
M307
1
Ground
9.5 – 13.5 V
Front air mix door motor RH
—
Continuity
Connector
Terminal
M307
2
Ground
Existed
+
−
Output waveform
Front air mix door motor RH
Connector
Terminal
M307
3
Ground
SJIA1453J
FRONT AIR MIX DOOR MOTOR (PASSENGER SIDE)
HAC-109
< 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 AIR MIX DOOR MOTOR (PASSENGER SIDE) POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front air mix door motor RH and A/C auto amp. connector.
3.
Check continuity between front air mix door motor RH harness connector and A/C auto amp. harness con-
nector.
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 AIR MIX DOOR MOTOR (PASSENGER SIDE) LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front air mix door motor RH and A/C auto amp. connector.
3.
Check continuity between front air mix door motor RH harness connector and A/C auto amp. harness con-
nector.
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 air mix door motor RH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M307
1
M50
4
Existed
Front air mix door motor RH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M307
3
M50
5
Existed
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