Nissan Quest E52. Instruction — part 767
HAC-198
< BASIC INSPECTION >
[MANUAL AIR CONDITIONING]
OPERATION INSPECTION
2.
Check whether any malfunction is detected.
Is any malfunction detected?
YES
>> Perform the appropriate diagnosis for the detected malfunction.
NO
>> Refer to
, and perform the appropriate diagnosis.
POWER SUPPLY AND GROUND CIRCUIT
HAC-199
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
A/C AMP.
A/C AMP. : Diagnosis Procedure
INFOID:0000000009652647
1.
CHECK SYMPTOM
Check symptom (A or B).
Which symptom is detected?
A
>> GO TO 2.
B
>> GO TO 5.
2.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 10A fuse (No. 3 and 19, located in fuse block (J/B)].
NOTE:
Refer to
PG-80, "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 A/C AMP. IGNITION POWER SUPPLY AND ACC POWER SUPPLY
1.
Disconnect A/C amp. connector.
2.
Turn ignition switch ON.
3.
Check voltage between A/C amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector between A/C amp. and fuse.
4.
CHECK A/C AMP. GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
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.
Symptom
A
• Front air conditioning does not activate.
• Front air conditioning cannot be controlled.
• Operation status of front air conditioning is not indicated on display.
B
Memory function does not operate normally.
+
−
Voltage
A/C amp.
Connector
Terminal
M49
2
Ground
11 – 14 V
9
A/C amp.
—
Continuity
Connector
Terminal
M49
21
Ground
Existed
23
HAC-200
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
POWER SUPPLY AND GROUND CIRCUIT
5.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 15A fuse (No. 6, located in fuse block (J/B)].
NOTE:
Refer to
PG-80, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
6.
CHECK A/C AMP. BATTERY POWER SUPPLY
1.
Disconnect A/C amp. connector.
2.
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
>> Repair harness or connector between A/C amp. and fuse.
REAR A/C CONTROL
REAR A/C CONTROL : Diagnosis Procedure
INFOID:0000000009652648
1.
CHECK REAR A/C CONTROL POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect rear A/C control connector.
3.
Turn ignition switch ON.
4.
Check voltage between rear A/C control harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector between rear A/C control and fuse block (J/B).
2.
CHECK REAR A/C CONTROL GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between rear A/C control harness connector and ground.
Is the inspection result normal?
YES
>> Replace rear A/C control. Refer to
HAC-239, "Removal and Installation"
.
NO
>> Repair harness or connector.
+
−
Voltage
A/C amp.
Connector
Terminal
M49
1
Ground
11 – 14 V
+
−
Voltage
Rear A/C control
Connector
Terminal
R16
12
Ground
11 – 14 V
Rear A/C control
—
Continuity
Connector
Terminal
R16
1
Ground
Existed
REAR A/C CONTROL COMMUNICATION SIGNAL
HAC-201
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
REAR A/C CONTROL COMMUNICATION SIGNAL
Diagnosis Procedure
INFOID:0000000009652649
1.
CHECK SYMPTOM
Check symptom (A or B).
Which symptom is detected?
A
>> GO TO 2.
B
>> GO TO 5.
2.
CHECK COMMUNICATION SIGNAL (REAR A/C CONTROL
→
A/C AMP.) CIRCUIT FOR OUTPUT SIG-
NAL
1.
Turn ignition switch OFF.
2.
Disconnect rear A/C control connector.
3.
Turn ignition switch ON.
4.
Check voltage between rear A/C control harness connector and ground.
Is the inspection result normal?
YES
>> Replace rear A/C control. Refer to
HAC-239, "Removal and Installation"
.
NO
>> GO TO 3.
3.
CHECK COMMUNICATION SIGNAL (REAR A/C CONTROL
→
A/C AMP.) CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C amp. 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 4.
NO
>> Repair harness or connector.
4.
CHECK COMMUNICATION SIGNAL (REAR A/C CONTROL
→
A/C AMP.) CIRCUIT FOR SHORT
Check continuity between rear A/C control 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.
5.
CHECK COMMUNICATION SIGNAL (A/C AMP.
→
REAR A/C CONTROL) CIRCUIT FOR OUTPUT SIG-
Symptom
A
Rear air conditioning
cannot be controlled
by rear A/C control.
Operation status of rear air conditioning is indicated on rear A/C control display.
B
Operation status of rear air conditioning is not indicated on rear A/C control dis-
play.
+
−
Voltage
(Approx.)
Rear A/C control
Connector
Terminal
R16
10
Ground
5 V
Rear A/C control
A/C amp.
Continuity
Connector
Terminal
Connector
Terminal
R16
10
M49
33
Existed
Rear A/C control
—
Continuity
Connector
Terminal
R16
10
Ground
Not existed
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