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Home >> Suzuki >> 2009 >> Equator RMZ-4 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (VQ40DE) - (3 Of 5) >> DTC P1421: Cold Start Control >> DTC Confirmation Procedure >> With SDT

With SDT

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Select "Data list" mode with SDT.
  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 "COOLAN 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. Check 1st trip DTC.
  7. If 1st trip DTC is detected, go to "DTC CONFIRMATION PROCEDURE ".
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