LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2009 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Component Testing (Qr25DE) >> Electrical Load Signal >> Diagnosis Procedure
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Diagnosis Procedure

  1. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
    1. Turn ignition switch ON.
    2. Check "LOAD SIGNAL" in "DATA MONITOR" mode with CONSULT-III under the following conditions.
      LOAD SIGNAL CIRCUIT CHECK REFERENCE CHART

      Condition LOAD SIGNAL
      Lighting switch: ON at 2nd position ON
      Lighting 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" in "DATA MONITOR" mode with CONSULT-III under the following conditions.

    LOAD SIGNAL CIRCUIT CHECK REFERENCE CHART

    Condition LOAD SIGNAL
    Rear window defogger switch: ON ON
    Rear window defogger switch: OFF OFF

    OK or NG 

    OK: GO TO 3.

    NG: GO TO  5.

  3. CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION

    Check "HEATER FAN SW" in "DATA MONITOR" mode with CONSULT-III under the following conditions.

    LOAD SIGNAL CIRCUIT CHECK REFERENCE CHART

    Condition LOAD SIGNAL
    Heater fan control switch: ON ON
    Heater fan control switch: OFF OFF

    OK or NG 

    OK: INSPECTION END  .

    NG: GO TO  6.

  4. CHECK HEADLAMP SYSTEM

    Refer to HEADLAMP (FOR USA) or HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM - .

    INSPECTION END 

  5. CHECK REAR WINDOW DEFOGGER SYSTEM

    Refer to REAR WINDOW DEFOGGER .

    INSPECTION END 

  6. CHECK HEATER FAN CONTROL SYSTEM

    Refer to TROUBLE DIAGNOSIS .

    INSPECTION END 

scientia non olet · About LEMON Manuals