Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2163 (LAN System) >> Can >> DTC/Circuit Diagnosis >> Diff Branch Line Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Xterra. 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 differential lock control unit 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 differential lock control unit.
    2. Check the resistance between the differential lock control unit harness connector terminals.
      RESISTANCE REFERENCE CHART

      Differential lock control unit harness connector Resistance (Ω)
      Connector No. Terminal No.
      M70 5 4 Approx. 54 - 66

      Is the measurement value within the specification? 

      YES: GO TO 3.

      NO: Repair the differential lock control unit branch line.

  3. CHECK POWER SUPPLY AND GROUND CIRCUIT

    Check the power supply and the ground circuit of the differential lock control unit. Refer to "DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES (Present error): Replace the differential lock control unit. Refer to "REMOVAL AND INSTALLATION ".

    YES (Past error): Error was detected in the differential lock control unit branch line.

    NO: Repair the power supply and the ground circuit.

scientia non olet · About Mike's Workshop Manuals