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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 360 (Engine Control System) >> Trouble Diagnosis >> DTC P0128: Thermostat Function >> DTC Confirmation Procedure >> Testing Condition
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Testing Condition

WARNING: This page is about a different car, the 2004 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

WITH CONSULT-II 

  1. Replace thermostat with NEW one. Refer to THERMOSTAT AND WATER PIPING in ENGINE COOLING SYSTEM - TITAN article. Use only a genuine NISSAN thermostat as a replacement. If an incorrect thermostat is used, the MIL may come on.
  2. Turn ignition switch ON.
  3. Select "COOLAN TEMP/S" in "DATA MONITOR" mode with CONSULT-II.
  4. Check that the "COOLAN TEMP/S" is above 60°C (140°F).

    If it is below 60°C (140°F), go to following step.

    If it is above 60°C (140°F), cool down the engine to less than 60°C (140°F), then retry from step 1.

  5. Drive vehicle for 10 consecutive minutes at 50-75 MPH (80-120 km/h).

    If 1st trip DTC is detected, go to Diagnostic Procedure  .

With GST 

  1. Follow the procedure "WITH CONSULT-II" above.