2004 Nissan-Datsun Sentra SE-R Spec VFACTORY OEM SERVICE PROCEDURE

Diagnostic Procedure

WARNING: This page is about a different car, the 2006 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK OVERALL FUNCTION 

    Check ASCD indicator under the following conditions.

    ASCD INDICATOR INSPECTION

    ASCD INDICATOR CONDITION SPECIFICATION
    CRUISE LAMP
    • Ignition switch: ON
    		 MAIN switch: pressed at the 1st time --> at the 2nd time ON --> OFF
    SET LAMP
    • MAIN switch: ON
    • When vehicle speed is between 40 km/h (25 MPH) and 144 km/h (89 MPH)
    		 ASCD: Operating ON
    ASCD: Not operating OFF

    OK or NG 

    OK: INSPECTION END 

    NG: GO TO 2.

  2. CHECK DTC 

    Check that DTC U1000 or U1001 is not displayed.

    OK or NG 

    OK: GO TO 3.

    NG: Perform trouble diagnoses for DTC U1000, U1001. Refer to "DTC U1000, U1001 CAN COMMUNICATION LINE "

  3. CHECK COMBINATION METER FUNCTION 

    Refer to "COMBINATION METERS "

    OK or NG 

    OK: GO TO 4.

    NG: Go to "COMBINATION METER ".

  4. CHECK INTERMITTENT INCIDENT 

    Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT "

    : INSPECTION END 

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.