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Home >> Nissan-Datsun >> 2011 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1148 To P2A03 (Qr25DE) >> DTC P1421 Cold Start Control >> DTC Confirmation Procedure >> Notes
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DTC Confirmation Procedure: Notes

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 DTC P1421 is displayed with other DTC, first perform the trouble diagnosis for other DTC  .

TESTING CONDITION: 

Before performing the following procedure, confirm that battery voltage is more than 11 V at idle  .