LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 994 (LAN System) >> Can >> Component Diagnosis >> BCM Branch Line Circuit >> Diagnosis Procedure >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  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.
    RESISTANCE SPECIFICATION

    BCM harness connector Resistance (Ω)
    Connector No. Terminal No.
    M19 79 78 Approx. 54 - 66

    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 "DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES (Present error): Replace the BCM. Refer to "REMOVAL AND INSTALLATION ".

    YES (Past error): Error was detected in the BCM branch line.

    NO: Repair the power supply and the ground circuit.

scientia non olet · About LEMON Manuals