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Home >> Nissan-Datsun >> 2012 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0159 (Qr25DE) >> DTC P0128: Thermostat Function >> DTC Confirmation Procedure
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DTC Confirmation Procedure

WITH CONSULT

CAUTION: Always drive vehicle at a safe speed.
NOTE: If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

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 75°C (167°F), go to next step.

    If it is above 75°C (167°F), cool down the engine to less than 75°C (167°F). Then go to next steps.

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

    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  .

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

    WITH GST

    Follow the procedure "With CONSULT" above.