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-166, "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-188, "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.
Door motor
Diagnosis Procedure
NOTE:
If all of door motor DTCs are detected, check this circuit.
1.CHECK DOOR MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between intake door motor harn ...
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” ...
Other materials:
PC415 communication circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Many electronic
control units are equipped onto a vehicle, and each co ...
B27B0 A/C auto AMP.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis
for DTC U1000. Refer to HAC-
141, "DTC Logic".
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis
for DTC U1010. HAC-142,
"DTC Log ...
Precaution
Precautions for Trouble Diagnosis
CAUTION:
• Never apply 7.0 V or more to the measurement terminal.
• Use a tester with open terminal voltage of 7.0 V or less.
• Turn the ignition switch OFF and disconnect the battery cable from the
negative terminal when
checking the harness.
Precautions fo ...
