Nissan Sentra. Manual - part 580
HAC-168
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
A/C ON SIGNAL
A/C ON SIGNAL
Component Function Check
INFOID:0000000009757757
1.
CHECK A/C ON SIGNAL
With CONSULT
1. Turn ignition switch ON.
2. Operate blower motor.
3. Select “AIR CONDITIONER” of “BCM” using CONSULT.
4. Select “AIR COND SW” in “DATA MONITOR” mode.
5. Check A/C ON signal when the A/C switch is operated.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Refer to
HAC-168, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009757758
Regarding Wiring Diagram information, refer to
1.
CHECK A/C ON SIGNAL
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Turn ignition switch ON.
4. Check output waveform between A/C auto amp. harness connector and ground with using oscilloscope.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-189, "Removal and Installation"
.
NO
>> GO TO 2.
2.
CHECK A/C ON SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between A/C auto amp. harness connector and BCM harness connector.
Monitor item
Condition
Status
AIR COND SW
A/C switch
ON (A/C indicator:
ON)
On
OFF (A/C indicator:
OFF)
Off
+
−
Output waveform
A/C auto amp.
Connector
Terminal
M33
15
Ground
JPMIA0012GB