Nissan Qashqai (2007-2010). Manual — part 923
HAC-52
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
HIGH-LEVEL VENTILATOR DOOR MOTOR
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK HIGH-LEVEL VENTILATOR DOOR MOTOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect high-level ventilator door motor connector.
3.
Check continuity between high-level ventilator door motor harness connector M44 terminal 2 and ground.
Is the inspection result normal?
YES
>> Replace high-level ventilator door motor.
NO
>> Repair harness or connector.
7.
PERFORM SELF-DIAGNOSIS STEP-4
Perform self-diagnosis STEP-4. Refer to
HAC-27, "Diagnosis Description"
, see No. 1 to 6.
Is it operated normally?
YES
>> END.
NO
>> GO TO 8.
8.
CHECK HIGH-LEVEL VENTILATOR DOOR CONTROL LINKAGE
Check high-level ventilator door control linkage.
Is it installed normally?
YES
>> Refer to
.
NO
>> Repair or adjust control linkage.
Component Inspection
INFOID:0000000001117101
HIGH-LEVEL VENTILATOR SWITCH
Check continuity between high-level ventilator switch (1) M52 termi-
nal 2 and 3.
(+)
(
−
)
Voltage
High-level VENT door motor
—
Connector
Terminal
M44
3
Ground
SJIA1453J
High-level VENT door motor
—
Continuity
Connector
Terminal
M44
2
Ground
Continuity should exist
JSIIA0303ZZ
HIGH-LEVEL VENTILATOR DOOR MOTOR
HAC-53
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
High-level ventilator switch
Condition
Continuity
Connector
Terminal
Connector
Terminal
M52
2
M52
3
High-level VENT SW: OFF
Continuity should not exist
High-level VENT SW: ON
Continuity should exist
HAC-54
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
AIR MIX DOOR MOTOR
AIR MIX DOOR MOTOR
Description
INFOID:0000000000954646
COMPONENT DESCRIPTION
Air Mix Door Motor
The air mix door motors (1) are attached to the A/C unit assembly. It rotates so that the air mix door is opened
or closed to a position set by the auto amp. Motor rotation is then conveyed through a shaft and the air mix
door position feedback is then sent to the auto amp. by PBR built-in air mix door motor.
Component Function Check
INFOID:0000000000954647
1.
CONFIRM SYMPTOM BY PERFORMING THE FOLLOWING OPERATIONAL CHECK
1.
Turn temperature control dial (driver side) clockwise until 30.0
°
C is displayed.
2.
Check for hot air at discharge air outlets.
3.
Turn temperature control dial (driver side) counterclockwise until 16.0
°
C is displayed.
4.
Check for cold air at discharge air outlets.
Is the inspection result normal?
YES
>> END.
NO
>> Go to diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000000954648
1.
PERFORM SELF-DIAGNOSIS STEP-2
Perform self-diagnosis STEP-2. Refer to
HAC-27, "Diagnosis Description"
, see No. 1 to 3.
Does code No. 20 appear on the display?
YES
>> GO TO 2.
NO
>> Go to appropriate malfunctioning sensor circuit. Refer to
HAC-27, "Diagnosis Description"
, see
No. 11.
2.
PERFORM SELF-DIAGNOSIS STEP-4
Perform self-diagnosis STEP-4. Refer to
HAC-27, "Diagnosis Description"
, see No.1 to 6.
Is it operated normally?
YES
>> END.
:
Vehicle front
JPIIA0026ZZ
AIR MIX DOOR MOTOR
HAC-55
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
NO-1
>> Malfunction is detected on left side. GO TO 3.
NO-2
>> Malfunction is detected on right side. GO TO 9.
3.
CHECK AIR MIX DOOR MOTOR (LEFT SIDE)
Check air mix door motor (left side). Refer to
.
Is it installed normally?
YES
>> GO TO 4.
NO
>> Replace air mix door motor (left side).
4.
CHECK POWER SUPPLY FOR AUTO AMP.
1.
Turn ignition switch ON.
2.
Check voltage between auto amp. harness connector M53 terminal 20 and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace auto amp.
5.
CHECK SIGNAL FOR AUTO AMP.
Confirm A/C LAN signal between auto amp. harness connector M53 terminal 3 and ground using an oscillo-
scope.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace auto amp.
6.
CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR (LEFT SIDE)
Check voltage between air mix door motor (left side) harness connector M306 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair harness or connector.
7.
CHECK SIGNAL FOR AIR MIX DOOR MOTOR (LEFT SIDE)
Confirm A/C LAN signal between air mix door motor (left side) harness connector M306 terminal 3 and ground
using an oscilloscope.
(+)
(
−
)
Voltage
Auto amp.
—
Connector
Terminal
M53
20
Ground
Battery voltage
(+)
(
−
)
Voltage
Auto amp.
—
Connector
Terminal
M53
3
Ground
SJIA1453J
(+)
(
−
)
Voltage
Air mix door motor (left side)
—
Connector
Terminal
M306
1
Ground
Battery voltage
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