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Home >> Infiniti >> 2008 >> G35 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 60 (Engine Control System - DTCS P1148 To P2A03) >> DTC P1421: Cold Start Control >> DTC Confirmation Procedure >> Notes

DTC Confirmation Procedure: Notes

WARNING: This page is about a different car, the 2008 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
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 11V at idle.