Nissan Juke Service and Repair Manual : Microphone signal circuit
Description
Power is supplied from audio unit to microphone. The microphone transmits the sound voice to the audio unit.
Diagnosis Procedure
1.CHECK CONTINUITY BETWEEN AUDIO UNIT AND MICROPHONE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect audio unit connector and microphone connector.
3. Check continuity between audio unit harness connector and microphone harness connector.

4. Check continuity between audio unit harness connector and ground.

Is inspection result OK? YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK VOLTAGE MICROPHONE VCC
1. Connect audio unit connector.
2. Turn ignition switch ON.
3. Check voltage between audio unit harness connector and ground.

Is inspection result OK? YES >> GO TO 3.
NO >> Replace audio unit. Refer to AV-38, "Removal and Installation".
3.CHECK MICROPHONE SIGNAL
1. Turn ignition switch OFF.
2. Connect microphone connector.
3. Turn ignition switch ON.
4. Check signal between audio unit harness connector.

Is inspection result OK? YES >> Replace audio unit. Refer to AV-38, "Removal and Installation".
NO >> Replace microphone. Refer to AV-43, "Removal and Installation".
Power supply and ground circuit
AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure
1.CHECK FUSE
Check for blown fuses.
Is inspection result OK?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before in ...
Steering switch signal a circuit
Description
Transmits the steering switch signal to audio unit.
Diagnosis Procedure
1.CHECK STEERING SWITCH SIGNAL A CIRCUIT
1. Disconnect audio unit connector and spiral cable connector.
2. Chec ...
Other materials:
Insufficient heating
Description
Symptom
• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)
Diagnosis Procedure
NOTE:
Perform self-diagnoses with CONSULT-III before performing symptom diagnosis. If
any DTC is detected, perform
the corresponding diagnosis.
1.CHECK COOLING SYSTEM
1. ...
Diagnosis system (A/C auto AMP.)
Description
Air conditioning system performs self-diagnosis, operation check, function
diagnosis, and various settings
using diagnosis function of each control unit.
CONSULT-III Function
CONSULT-III performs the following functions via CAN communication with A/C
auto amp.
NOTE:
Diagnos ...
P0840 transmission fluid pressure SEN/SW A
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn
ignition switch
OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the mal ...
