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.

• 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:

    P0133 A/F sensor 1
    DTC Logic DTC DETECTION LOGIC To judge the malfunction of A/F sensor 1, this diagnosis measures response time of the A/F signal computed by ECM from the A/F sensor 1 signal. The time is compensated by engine operating (speed and load), fuel feedback control constant, and the A/F sensor 1 tem ...

    Nats antenna AMP
    Removal and Installation REMOVAL 1. Remove the cluster lid A. Refer to IP-13, "Removal and Installation". 2. Remove the NATS antenna amp. 1. Disengage the NATS antenna amp. (1) fixing pawls using minus driver etc. 2. Pull NATS antenna amp. to remove it from push-button ignition sw ...

    System
    Engine control system : System Diagram Engine control system : System Description ECM performs various controls such as fuel injection control and ignition timing control. MULTIPORT FUEL INJECTION SYSTEM Multiport fuel injection system : System Diagram Multiport fuel injection system : ...