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HOMESERVICE MANUALSNISSAN-DATSUN2009XTERRA SE, 4WDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - COMPONENT TESTINGELECTRICAL LOAD SIGNALDIAGNOSIS PROCEDURE
2009 Nissan-Datsun Xterra SE, 4WD

Diagnosis Procedure

2009 Nissan-Datsun Xterra SE, 4WDSECTION Diagnosis Procedure
  1. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
    1. Turn ignition switch ON.
    2. Connect CONSULT-III and select "DATA MONITOR" mode.
    3. Select "LOAD SIGNAL" and check indication under the following conditions.
    INDICATION CONDITION REFERENCE CHART

    Condition Indication
    Rear window defogger switch: ON ON
    Rear window defogger switch: OFF OFF

    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.

    INDICATION CONDITION REFERENCE CHART

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

    OK or NG 

    OK : GO TO 3.

    NG : GO TO  5.

  3. CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION

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

    INDICATION CONDITION REFERENCE CHART

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

    OK or NG 

    OK : INSPECTION END 

    NG : GO TO  6.

  4. CHECK REAR WINDOW DEFOGGER SYSTEM

    Refer to "REPAIR WORK FLOW ".

    INSPECTION END 

  5. CHECK HEADLAMP SYSTEM

    Refer to "WORK FLOW ".

    INSPECTION END 

  6. CHECK HEATER FAN CONTROL SYSTEM

    Refer to "SYMPTOM MATRIX CHART " (TYPE 1) or "SYMPTOM MATRIX CHART " (TYPE 2).

    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.