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Home >> Nissan-Datsun >> 2007 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1211 To P2A03 >> DTC P1421 Cold Start Control >> DTC Confirmation Procedure >> With Consult-II
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With Consult-II

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Select "DATA MONITOR" mode with CONSULT-II.
  4. Check that the "COOLAN TEMP/S" indication is between 4°C (39°F) and 36°C (97°F).

    If "COOLAN TEMP/S" indication is within the specified value, go to the following step.

    If "COOLANT TEMP/S" indication is out of the specified value, cool engine down or warm engine up and go to step  1.

  5. Start engine and let it idle for 5 minutes.
  6. If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE ".
    Fig 1: CONSULT-II Display - DATA MONITOR
    G04900167Courtesy of NISSAN NORTH AMERICA, INC.