Nissan X-Trail 32. Instruction — part 1432
B24BB LEFT AIR MIX DOOR MOTOR
HAC-203
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK AIR MIX DOOR MOTOR
Check air mix door motor. Refer to
HAC-203, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C amp. Refer to
HAC-222, "Removal and Installation"
.
NO
>> Replace air mix door motor. Refer to
HAC-229, "AIR MIX DOOR MOTOR : Removal and Installa-
.
Component Inspection
INFOID:0000000010939853
1.
CHECK AIR MIX DOOR MOTOR
1.
Remove air mix door motor. Refer to
HAC-229, "AIR MIX DOOR MOTOR : Removal and Installation"
.
2.
Check resistance between air mix door motor terminals. Refer to applicable table for the normal value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace air mix door motor. Refer to
HAC-229, "AIR MIX DOOR MOTOR : Removal and Installa-
.
+
−
Voltage
Air mix door motor
Connector
Terminal
M348
1
Ground
0 V
3
4
6
Terminal
Resistance (
Ω
)
(Approx.)
2
1
90
3
4
6
HAC-204
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
A/C AMP.
A/C AMP. : Diagnosis Procedure
INFOID:0000000010939854
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 10 A fuse [No. 20 (without stop/start system), located in fuse block (J/B)], [No. 59 (with stop/start
system)].
NOTE:
Refer to
PG-84, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK A/C AMP. ACCESSORY 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 3.
NO
>> Repair harness or connector between A/C amp. and fuse.
3.
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 A/C amp. Refer to
HAC-222, "Removal and Installation"
.
NO
>> Repair harness or connector.
+
−
Voltage
A/C amp.
Connector
Terminal
M132
3
Ground
11 - 14 V
A/C amp.
—
Continuity
Connector
Terminal
M132
19
Ground
Existed
BLOWER 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
BLOWER MOTOR
Diagnosis Procedure
INFOID:0000000010939855
1.
CHECK SYMPTOM
Check symptom (A, B or C).
Which symptom is detected?
A
>> GO TO 2.
B
>> GO TO 11.
C
>> GO TO 13.
2.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check following fuses.
-
20 A fuses [Nos. 7 and 17, located in the fuse block (J/B)]
NOTE:
Refer to
PG-84, "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 BLOWER MOTOR POWER SUPPLY
1.
Disconnect blower motor connector.
2.
Turn ignition switch ON.
3.
Check voltage between blower motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK BLOWER RELAY
1.
Turn ignition switch OFF.
2.
Check blower relay. Refer to
HAC-208, "Component Inspection (Blower Relay)"
.
Is the inspection result normal?
YES
>> Repair harness or connector between blower motor and fuse.
NO
>> Replace blower relay.
5.
CHECK FAN CONTROL AMP. POWER SUPPLY (SOURCE) CIRCUIT
1.
Turn ignition switch OFF.
2.
Connect blower motor connector.
3.
Disconnect fan control amp. connector.
4.
Turn ignition switch ON.
5.
Check voltage between fan control amp. harness connector and ground.
Symptom
A
Blower motor does not operate.
B
Blower motor operates at the maximum fan
speed and fan speed cannot be selected.
Blower motor can be switched to OFF.
C
Blower motor cannot be switched to OFF.
+
−
Voltage
Blower motor
Connector
Terminal
M347
1
Ground
11 – 14 V
HAC-206
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONING]
BLOWER MOTOR
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 6.
6.
CHECK FAN CONTROL AMP. POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect blower motor connector.
3.
Check continuity between fan control amp. harness connector and blower motor harness connector.
Is the inspection result normal?
YES
>> Replace blower motor. Refer to
VTL-15, "Removal and Installation"
.
NO
>> Repair harness or connector.
7.
CHECK FAN CONTROL AMP. GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Check continuity between fan control amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair harness or connector.
8.
CHECK FAN CONTROL AMP. CONTROL SIGNAL (GATE) CIRCUIT FOR OPEN
Check continuity between fan control amp. harness connector and A/C amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair harness or connector.
9.
CHECK FAN CONTROL AMP. CONTROL SIGNAL CIRCUIT FOR SHORT
Check continuity between fan control amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair harness or connector.
+
−
Voltage
Fan control amp.
Connector
Terminal
M346
1
Ground
11 – 14 V
Fan control amp.
Blower motor
Continuity
Connector
Terminal
Connector
Terminal
M346
1
M347
2
Existed
Fan control amp.
—
Continuity
Connector
Terminal
M346
3
Ground
Existed
Fan control amp.
A/C amp.
Continuity
Connector
Terminal
Connector
Terminal
M346
2
M132
1
Existed
Fan control amp.
—
Continuity
Connector
Terminal
M346
2
Ground
Not existed
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