Nissan Quest E52. Instruction — part 768
HAC-202
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
REAR A/C CONTROL COMMUNICATION SIGNAL
NAL
1.
Turn ignition switch OFF.
2.
Disconnect A/C amp. connector.
3.
Turn ignition switch ON.
4.
Check voltage 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
>> GO TO 6.
6.
CHECK COMMUNICATION SIGNAL (A/C AMP.
→
REAR A/C CONTROL) CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect rear A/C control connector.
3.
Check continuity between rear A/C control harness connector and A/C amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair harness or connector.
7.
CHECK COMMUNICATION SIGNAL (A/C AMP.
→
REAR A/C CONTROL) CIRCUIT FOR SHORT
Check continuity between rear A/C control harness connector and ground.
Is the inspection result normal?
YES
>> Check rear A/C control power supply circuit. Refer to
HAC-200, "REAR A/C CONTROL : Diagno-
NO
>> Repair harness or connector.
+
−
Voltage
(Approx.)
A/C amp.
Connector
Terminal
M49
32
Ground
5 V
Rear A/C control
A/C amp.
Continuity
Connector
Terminal
Connector
Terminal
R16
9
M49
32
Existed
Rear A/C control
—
Continuity
Connector
Terminal
R16
9
Ground
Not existed
INTAKE SENSOR
HAC-203
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
INTAKE SENSOR
Diagnosis Procedure
INFOID:0000000009652650
1.
CHECK INTAKE SENSOR SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between A/C amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 2.
2.
CHECK INTAKE SENSOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect intake sensor connector.
3.
Turn ignition switch ON.
4.
Check voltage between intake sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 5.
3.
CHECK INTAKE SENSOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C amp. connector.
3.
Check continuity between intake sensor harness connector and A/C amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK INTAKE SENSOR
Check intake sensor. Refer to
HAC-204, "Component Inspection"
Is the inspection result normal?
YES
>> Replace front A/C control (A/C amp.). Refer to
HAC-238, "Removal and Installation"
NO
>> Replace intake sensor. Refer to
HAC-240, "Removal and Installation"
+
−
Voltage
A/C amp.
Connector
Terminal
M49
37
Ground
JMIIA1786ZZ
+
−
Voltage
(Approx.)
Intake sensor
Connector
Terminal
M42
1
Ground
5 V
Intake sensor
A/C amp.
Continuity
Connector
Terminal
Connector
Terminal
M42
2
M49
40
Existed
HAC-204
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
INTAKE SENSOR
5.
CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C amp. connector.
3.
Check continuity between intake sensor harness connector and A/C amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between intake sensor 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 INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C amp.). Refer to
HAC-238, "Removal and Installation"
.
NO
>> Repair or replace malfunctioning parts.
Component Inspection
INFOID:0000000009652651
1.
CHECK INTAKE SENSOR
1.
Remove intake sensor. Refer to
HAC-240, "Removal and Installation"
.
2.
Check resistance between intake sensor terminals. Refer to applicable table for the normal value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace intake sensor. Refer to
HAC-240, "Removal and Installation"
Intake sensor
A/C amp.
Continuity
Connector
Terminal
Connector
Terminal
M42
1
M49
37
Existed
Intake sensor
—
Continuity
Connector
Terminal
M42
1
Ground
Not existed
Terminal
Condition
Resistance: k
Ω
Temperature:
°
C (
°
F)
1
2
−
20 (
−
4)
24.81
−
10 (14)
14.15
0 (32)
8.41
10 (50)
5.19
20 (68)
3.30
25 (77)
2.67
30 (86)
2.17
40 (104)
1.46
FRONT AIR MIX DOOR MOTOR
HAC-205
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
FRONT AIR MIX DOOR MOTOR
Diagnosis Procedure
INFOID:0000000009652652
1.
CHECK FRONT AIR MIX DOOR MOTOR POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between front air mix door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK FRONT AIR MIX DOOR MOTOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect front air mix door motor and A/C amp. connector.
3.
Check continuity between front air mix door motor 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 LAN SIGNAL
1.
Connect front air mix door motor and A/C amp. connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between front air mix 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 AIR MIX DOOR MOTOR
Check front air mix door motor is properly installed. Refer to
Is the inspection result normal?
YES
>> Replace front air mix door motor. Refer to
HAC-243, "FRONT AIR MIX DOOR MOTOR : Removal
.
+
−
Voltage
Front air mix door motor
Connector
Terminal
M308
1
Ground
9.5 – 13.5 V
Front air mix door motor
—
Continuity
Connector
Terminal
M308
2
Ground
Existed
+
−
Output waveform
Front air mix door motor
Connector
Terminal
M308
3
Ground
SJIA1453J
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст