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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2093 (LAN System) >> Service Information >> Trouble Diagnosis >> ABS Actuator and Electric Unit (Control Unit) Branch Line Circuit >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 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 ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side).

    OK or NG 

    OK: GO TO 2.

    NG: Repair the terminal and connector.

  2. CHECK HARNESS FOR OPEN CIRCUIT 
    1. Disconnect the connector of ABS actuator and electric unit (control unit).
    2. Check the resistance between the ABS actuator and electric unit (control unit) harness connector terminals.
      • Models with TCS 
        MODELS WITH TCS - RESISTANCE REFERENCE CHART

        ABS actuator and electric unit (control unit) harness connector Resistance (Ω)
        Connector No. Terminal No.
        E125 22 9 Approx. 54 - 66
      • Models with VDC 
        MODELS WITH TCS - RESISTANCE REFERENCE CHART

        ABS actuator and electric unit (control unit) harness connector Resistance (Ω)
        Connector No. Terminal No.
        E125 7 9 Approx. 54 - 66

    OK or NG 

    OK: GO TO 3.

    NG: Repair the ABS actuator and electric unit (control unit) branch line.

  3. CHECK POWER SUPPLY AND GROUND CIRCUIT 

    Check the power supply and the ground circuit of ABS actuator and electric unit (control unit). Refer to "SCHEMATIC ".

    OK or NG 

    OK:

    • Present error: Replace the ABS actuator and electric unit (control unit). Refer to "ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) .
    • Past error: Error was detected in the ABS actuator and electric unit (control unit) branch line.

    NG: Repair the power supply and the ground circuit.