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Nissan X-Trail 32. Manual - part 1408
BLOWER MOTOR
HAC-107
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
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HAC
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BLOWER MOTOR
Diagnosis Procedure
INFOID:0000000010939764
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check following fuses.
-
15 A fuse [Nos. 17 and 27, located in fuse block (J/B)]
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.
CHECKPOWER TRANSISTOR POWER SUPPLY
1.
Disconnect power transistor connector.
2.
Turn ignition switch ON.
3.
Check voltage between power transistor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK BLOWER RELAY
1.
Turn ignition switch OFF.
2.
Check blower relay. Refer to
HAC-110, "Component Inspection (Blower Relay)"
Is the inspection result normal?
YES
>> Repair harness or connector between power transistor and fuse.
NO
>> Replace blower relay.
4.
CHECK BLOWER MOTOR CONTROL CIRCUIT
1.
Turn ignition switch OFF.
2.
Connect power transistor connector.
3.
Disconnect blower motor connector.
4.
Turn ignition switch ON.
5.
Check voltage between blower motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
CHECK BLOWER MOTOR CONTROL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect power transistor connector.
3.
Check continuity between power transistor harness connector and blower motor harness connector.
+
−
Voltage
Power transistor
Connector
Terminal
M349
4
Ground
Battery voltage
+
−
Voltage
Blower motor
Connector
Terminal
M347
1
Ground
Battery voltage