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Home >> Infiniti >> 2003 >> FX45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0125: Insufficient Engine Coolant Temperature For Closed Loop Fuel Control >> DTC Confirmation Test
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DTC Confirmation Test

NOTE: Before proceeding, ensure battery voltage is more than 10 volts at idle.
  1. Turn ignition on. Select DATA MONITOR with scan tool.
  2. Check that COOLAN TEMP/S is above 50°F (10°C). If it is above 50°F (10°C), test result is okay. If it is below 50°F (10°C), go to next step.
  3. Start engine and run it for 65 minutes at idle speed.
  4. If COOLAN TEMP/S increases to more than 50°F (10°C) within 65 minutes, stop engine. Test result is okay. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  .
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