Nissan Juke Service and Repair Manual : A/C on signal
Component Function Check
1.CHECK A/C ON SIGNAL
With CONSULT-III
1. Turn ignition switch ON.
2. Operate blower motor.
3. Select “AIR CONDITIONER” of “BCM” using CONSULT-III.
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-75, "Diagnosis Procedure".
Diagnosis Procedure
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-91, "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.

Is the inspection result normal? YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK A/C ON SIGNAL CIRCUIT FOR SHORT
Check continuity between A/C auto amp. 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.
Power supply and ground circuit
A/C auto AMP. : Diagnosis Procedure
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 ...
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 ...
Other materials:
Engine oil
Inspection
ENGINE OIL LEVEL
NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level.
If engine is already started, stop
it and allow 10 minutes before checking.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and check that the engine ...
Blower fan resistor
Exploded View
1. A/C unit assembly
2. Fan control amp.*1
3. Blower fan resistor*2
4. Blower motor
5. Blower motor cover
• *1: Automatic air conditioner
• *2: Manual air conditioner
Removal and Installation
REMOVAL
1. Remove instrument panel assembly. Refer to IP-13, "Removal ...
Drive belt auto tensioner and idler pulley
Exploded View
1. Front cover
2. Drive belt auto-tensioner
: N·m (kg-m, ft-lb)
Removal and Installation
Removal
1. Loosen mounting bolt and remove drive belt auto-tensioner.
Installation
Install in the reverse order of removal.
CAUTION:
When installing drive belt auto-tensioner, be ...
