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HOMESERVICE MANUALSNISSAN-DATSUN2004ALTIMA S, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEM - 2.5LASCD INDICATORDIAGNOSTIC PROCEDURE
2004 Nissan-Datsun Altima S, Automatic

Diagnostic Procedure

2004 Nissan-Datsun Altima S, AutomaticSECTION Diagnostic Procedure
  1. CHECK OVERALL FUNCTION 

    Check ASCD indicator under the following conditions.

    Fig 1: ASCD Indicator Checking Conditions
    G02885015Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK : INSPECTION END 
    2. NG : GO TO 2.
  2. CHECK DTC 

    Check that DTC U1000 or U1001 is not displayed.

    Yes or No

    1. Yes : Perform trouble diagnoses for DTC U1000, U1001, refer to "DTC U1000, U1001 CAN COMMUNICATION LINE ".
    2. No : GO TO 3.
  3. CHECK COMBINATION METER OPERATION 

    Does combination meter operate normally?

    Yes or No

    1. Yes : GO TO 4.
    2. No : Check combination meter circuit. Refer to "COMBINATION METERS ".
  4. CHECK INTERMITTENT INCIDENT 

    Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

    1. >> INSPECTION END 
RENDER: 1.0x

NO RELATED

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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.