Nissan Quest E52. Instruction — part 750
HAC-130
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
REAR BLOWER MOTOR
1.
Remove rear blower motor. Refer to
VTL-18, "REAR BLOWER MOTOR : Removal and Installation"
2.
Check that there is not any mixing foreign object in the rear blower motor.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace rear blower motor. Refer to
VTL-18, "REAR BLOWER MOTOR : Removal and Installa-
.
2.
CHECK REAR BLOWER MOTOR-II
Check that there is not breakage or damage in the rear blower motor.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace rear blower motor. Refer to
VTL-18, "REAR BLOWER MOTOR : Removal and Installa-
.
3.
CHECK REAR BLOWER MOTOR-III
Check that rear blower motor turns smoothly.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace rear blower motor. Refer to
VTL-18, "REAR BLOWER MOTOR : Removal and Installa-
.
Component Inspection (Rear Blower Relay)
INFOID:0000000009652577
1.
CHECK REAR BLOWER RELAY
1.
Remove rear blower relay. Refer to
PG-81, "Fuse and Fusible Link Arrangement"
2.
Check continuity between rear blower relay terminal 3 and 5,
then 6 and 7 when voltage is supplied between terminal 1 and 2.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace rear blower relay.
Terminal
Voltage
Continuity
3
5
ON
Existed
OFF
Not existed
6
7
ON
Existed
OFF
Not existed
JMIIA1869ZZ
MAGNET CLUTCH
HAC-131
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
MAGNET CLUTCH
Component Function Check
INFOID:0000000009652578
1.
CHECK MAGNET CLUTCH OPERATION
Perform auto active test of IPDM E/R. Refer to
PCS-11, "Diagnosis Description"
.
Does it operate normally?
YES
>> INSPECTION END
NO
>> Refer to
HAC-131, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009652579
1.
CHECK MAGNET CLUTCH
1.
Turn ignition switch OFF.
2.
Disconnect compressor connector.
3.
Directly apply battery voltage to the magnet clutch. Check for operation visually and by sound.
Does it operate normally?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK FUSE
Check 10A fuse (No. 49, located in IPDM E/R).
NOTE:
Refer to
PG-82, "Fuse, Connector and Terminal Arrangement"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
3.
CHECK MAGNET CLUTCH POWER SUPPLY CIRCUIT FOR OPEN
1.
Disconnect IPDM E/R connector.
2.
Check continuity between IPDM E/R harness connector and compressor harness connector.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-36, "Removal and Installation"
.
NO
>> Repair harness or connector.
4.
CHECK MAGNET CLUTCH GROUND CIRCUIT FOR OPEN
Check continuity between compressor harness connector and ground.
Is the inspection result normal?
YES
>> Replace magnet clutch. Refer to
HA-32, "MAGNET CLUTCH : Removal and Installation of Com-
NO
>> Repair harness or connector.
IPDM E/R
Compressor
Continuity
Connector
Terminal
Connector
Terminal
F12
48
F18
1
Existed
Compressor
—
Continuity
Connector
Terminal
F18
2
Ground
Existed
HAC-132
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
IONIZER
IONIZER
Diagnosis Procedure
INFOID:0000000009652580
1.
CHECK IONIZER POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect ionizer connector.
3.
Turn ignition switch ON.
4.
Check voltage between ionizer harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector between ionizer and fuse block (J/B).
2.
CHECK IONIZER GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Check continuity between ionizer harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK IONIZER (ON/OFF) CONTROL SIGNAL
1.
Connect ionizer connector.
2.
Disconnect A/C auto amp. connector.
3.
Turn ignition switch ON.
4.
Check voltage between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> GO TO 4.
4.
CHECK IONIZER (ON/OFF) CONTROL SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect ionizer connector.
3.
Check continuity between A/C auto amp. harness connector and ionizer harness connector.
Is the inspection result normal?
+
−
Voltage
Ionizer
Connector
Terminal
M64
1
Ground
11 – 14 V
Ionizer
—
Continuity
Connector
Terminal
M64
3
Ground
Existed
+
−
Voltage
A/C auto amp.
Connector
Terminal
M50
15
Ground
9.5 – 13.5 V
Ionizer
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M64
4
M50
15
Existed
IONIZER
HAC-133
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK IONIZER (ON/OFF) CONTROL SIGNAL CIRCUIT FOR SHORT
Check continuity between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> Replace ionizer. Refer to
HAC-155, "Removal and Installation"
NO
>> Repair harness or connector.
Ionizer
—
Continuity
Connector
Terminal
M64
4
Ground
Not existed
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