2004 Nissan-Datsun Sentra SE-RFACTORY 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 LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I 
    1. Turn ignition switch ON.
    2. Connect CONSULT-II and select "DATA MONITOR" mode.
    3. Select "LOAD SIGNAL" and check indication under the following conditions.
    REAR WINDOW DEFOGGER SWITCH INDICATION

    Condition Indication
    Rear window defogger switch: ON ON
    Rear window defogger switch: OFF OFF
    Fig 1: Consult-II DATA MONITOR Display Screen
    G04075263Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 2.

    NG: GO TO  4.

  2. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II 

    Check "LOAD SIGNAL" indication under the following conditions.

    LIGHTING SWITCH INDICATION

    Condition Indication
    Lighting switch: ON at 2nd position ON
    Lighting switch: OFF OFF

    OK or NG 

    OK: GO TO 3.

    NG: GO TO  5.

    Fig 2: Consult-II DATA MONITOR Display Screen
    G04075263Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION 

    Select "HEATER FAN SW" and check indication under the following conditions.

    HEATER FAN SWITCH INDICATION

    Condition Indication
    Heater fan control switch: ON ON
    Heater fan control switch: OFF OFF

    OK or NG 

    OK: INSPECTION END 

    NG: GO TO  6.

    Fig 3: CONSULT-II Display - Data Monitor
    G04173790Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK REAR WINDOW DEFOGGER SYSTEM 

    Refer to "REAR WINDOW DEFOGGER "

    : INSPECTION END 

  5. CHECK HEADLAMP SYSTEM 

    Refer to "HEADLAMP (FOR USA) " or LT-29, "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM-"

    : INSPECTION END 

  6. CHECK HEATER FAN CONTROL SYSTEM 

    Refer to "TROUBLE DIAGNOSIS " or MTC-29, "TROUBLE DIAGNOSIS"

    : INSPECTION END 

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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.

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