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


- Models without Intelligent Key system

Is the measurement value within the specification?


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.

Х Models with Intelligent Key system: BCS-87, "Diagnosis Procedure" Х Models without Intelligent Key system: BCS-155, "Diagnosis Procedure"

Is the inspection result normal? YES (Present error)>>Replace the BCM. Refer to the following.

Х Models with Intelligent Key system: BCS-93, "Removal and Installation" Х 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:

    Test Value and Test Limit
    The following is the information specified in Service $06 of ISO 15031-5. The test value is a parameter used to determine whether a system/circuit diagnostic test is OK or NG while being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the ...

    Door outside molding
    Exploded View 1. Front door panel 2. Front door outside molding 3. Rear door panel 4. Rear door outside molding 5. Door glass : Pawl Front door outside molding FRONT DOOR OUTSIDE MOLDING : Removal and Installation REMOVAL 1. Fully open front door glass. 2. Twist door outside molding ...

    U1010 control unit (can)
    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 ...