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HOMESERVICE MANUALSNISSAN-DATSUN2012SENTRA SE-RREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 19 (ENGINE CONTROL SYSTEM - COMPONENT TESTING (MR20DE) (EXCEPT CALIFORNIA))ELECTRICAL LOAD SIGNALDIAGNOSIS PROCEDURE
2012 Nissan-Datsun Sentra SE-R

Diagnosis Procedure

2012 Nissan-Datsun Sentra SE-RSECTION Diagnosis Procedure
WARNING: This page is about a different variant/trim than selected.
  1. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
    1. Turn ignition switch ON.
    2. Check "LOAD SIGNAL" in "DATA MONITOR" mode with CONSULT under the following conditions.
    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 under the following conditions.

    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 under the following conditions.

    Condition HEATER FAN SW
    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 

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.