Nissan Juke Service and Repair Manual : BCM branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of BCM.
2. Check the resistance between the BCM harness connector terminals.
- Models with Intelligent Key system
- Models without Intelligent Key system
Is the measurement value within the specification? YES >> GO TO 3.
NO >> Repair the BCM branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the BCM. Refer to the following.
• Models with Intelligent Key system: BCS-87, "Diagnosis Procedure" • Models without Intelligent Key system: BCS-155, "Diagnosis Procedure"
Is the inspection result normal? YES (Present error)>>Replace the BCM. Refer to the following.
• Models with Intelligent Key system: BCS-93, "Removal and Installation" • Models without Intelligent Key system: BCS-161, "Removal and Installation"
YES (Past error)>>Error was detected in the BCM branch line.
NO >> Repair the power supply and the ground circuit.
PTC branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the PTC heater control u ...
Can communication circuit
Diagnosis Procedure
1.CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect all the unit connectors on CAN communication s ...
Other materials:
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.
...
Keyfob ID registration
Description
Perform the following procedure after BCM is replaced or when new keyfob ID
is registered
NOTE:
When registering the keyfob ID, perform only one procedure to simultaneously
register both ID (IMMOBILIZER
ID and keyfob ID).
Work Procedure
1.STEP 1
Close all doors.
>> GO ...
Symptom diagnosis
Squeak and rattle trouble diagnoses
Work Flow
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist
when the noise occurs. Use the Diagnostic
Worksheet during the interview to document the facts and conditions when the
noise occurs and any of
the cu ...