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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 2058 (LAN System) >> Can >> Trouble Diagnosis >> Front Air Control Branch Line Circuit >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2007 Nissan Quest. 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 front air control 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 front air control.
    2. Check the resistance between the front air control harness connector terminals.
      RESISTANCE CHART

      Front air control harness connector Resistance (Ω)
      Connector No. Terminal No.
      M50 41 40 Approx. 54 - 66

    OK or NG 

    OK: GO TO 3.

    NG: Repair the front air control branch line.

  3. CHECK POWER SUPPLY AND GROUND CIRCUIT 

    Check the power supply and the ground circuit of the front air control. Refer to "SCHEMATIC " (Models with automatic air conditioner), "SCHEMATIC " (Models with manual air conditioner).

    OK or NG 

    OK >>

    • Present error: Replace the front air control. Refer to "FRONT AIR CONTROL " (Models with automatic air conditioner), "FRONT AIR CONTROL " (Models with manual air conditioner).
    • Past error: Error was detected in the front air control branch line.

    NG: Repair the power supply and the ground circuit.

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