Nissan Juke Service and Repair Manual : Blower fan on signal
Component Function Check
1.CHECK BLOWER FAN ON SIGNAL
With CONSULT-III
1. Turn ignition switch ON.
2. Select “AIR CONDITIONER” of “BCM” using CONSULT-III.
3. Select “FAN ON SIG” in “DATA MONITOR” mode, and check status under the following condition.

Is the inspection result normal? YES >> INSPECTION END
NO >> Refer to HAC-222, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK FAN SWITCH POWER SUPPLY SIGNAL
1. Turn ignition switch OFF.
2. Disconnect A/C control harness connector.
3. Turn ignition switch ON.
4. Check output waveform between A/C control and ground with using oscilloscope.

Is the inspection result normal? YES >> Replace A/C control. Refer to HAC-239, "Removal and Installation".
NO >> GO TO 2.
2.CHECK BLOWER FAN ON SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity A/C control harness connector and BCM harness connector.

Is the inspection result normal? YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK BLOWER FAN ON SIGNAL CIRCUIT FOR SHORT
Check continuity between A/C control harness connector and ground.

Is the inspection result normal? YES >> Replace BCM. Refer to BCS-93, "Removal and Installation" (with Intelligent Key) or BCS-161, "Removal and Installation" (without Intelligent Key).
NO >> Repair harness or connector.
A/C switch
Component Function Check
1.CHECK A/C ON SIGNAL
With CONSULT-III
1. Turn ignition switch ON.
2. Select “AIR CONDITIONER” of “BCM” using CONSULT-III.
3. Select “AIR COND SW” in “DATA ...
Thermo control amplifier
Component Function Check
1.CHECK A/C ON SIGNAL
With CONSULT-III
1. Turn ignition switch ON.
2. Select “AIR CONDITIONER” of “BCM” using CONSULT-III.
3. Select “THERMO AMP” in “DATA M ...
Other materials:
Front door lock
Exploded View
1. Door key cylinder assembly (driver
side)
Outside handle escutcheon (passenger
side)
2. Outside handle
3. Front gasket
4. Inside handle
5. TORX bolt
6. Door lock assembly
7. Key rod (driver side)
8. Outside handle bracket
9. Rear gasket
10. Key rod protector (driv ...
Ignition signal
Component Function Check
1.INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES >> GO TO 2.
NO >> Proceed to EC-414, "Diagnosis Procedure".
2.IGNITION SIGNAL FUNCTION
With CONSULT-III
1. Perform “POWER BALANCE” in “ACTIVE ...
System
Body control system
BODY CONTROL SYSTEM : System Description
OUTLINE
• BCM (Body Control Module) controls the various electrical components. It
inputs the information required to
the control from CAN communication and the signal received from each switch and
sensor.
• BCM has combinatio ...
