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HOMESERVICE MANUALSNISSAN-DATSUN2012SENTRA SE-RREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - DTCS P0171 TO P0507 (QR25DE)DTC P0507: ISC SYSTEMDTC CONFIRMATION PROCEDURE
2012 Nissan-Datsun Sentra SE-R

DTC Confirmation Procedure

2012 Nissan-Datsun Sentra SE-RSECTION DTC Confirmation Procedure
NOTE:
  • If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
  • If the target idle speed is out of the specified value, perform  "IDLE AIR VOLUME LEARNING ", before conducting DTC Confirmation Procedure. For the target idle speed, refer to the SERVICE DATA AND SPECIFICATIONS (SDS) .

TESTING CONDITION: 

  • Before performing the following procedure, confirm that battery voltage is more than 11 V at idle  .
  • Always perform the test at a temperature above -10°C (14°F)  .
  1. Start engine and warm it up to normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Start engine and run it for at least 1 minute at idle speed.
  4. Check 1st trip DTC.
  5. If 1st trip DTC is detected, go to "DIAGNOSIS PROCEDURE ".
RENDER: 1.0x

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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.