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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2405 (Engine Control System - DTCS U0101 To P0175 (VK56DE)) >> DTC P0128: Thermostat Function >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. 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 perform the following procedure before conducting the next step.
  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

WITH CONSULT

TESTING CONDITION: 

  1. Turn A/C switch OFF.
  2. Turn blower fan switch OFF.
  3. Turn ignition switch ON.
  4. Select "COOLAN TEMP/S" in "DATA MONITOR" mode with CONSULT.
  5. Check the indication of "COOLAN TEMP/S".

    If it is below 56°C (133°F), go to next step.

    If it is above 56°C (133°F), cool down the engine to less than 56°C (133°F). Then go to next steps.

  6. Start engine and drive vehicle for 10 consecutive minutes under the following conditions.
    VHCL SPEED SE More than 56 km/h (35 MP)

    If "COOLAN TEMP/S" increases to more than 75°C (167°F) within 10 minutes, turn ignition switch OFF because the test result will be OK  .

  7. Check 1st trip DTC.
  8. If 1st trip DTC is detected, go to "DIAGNOSIS PROCEDURE ".

WITH GST

Follow the procedure "WITH CONSULT" above.