LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1203 (Engine Control System) >> DTC P0128: Thermostat Function >> Diagnostic Trouble Codes Confirmation Procedure >> With Consult-II

With Consult-II

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. Replace thermostat with new one. Refer to "THERMOSTAT AND WATER PIPING ". 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 under the following conditions.
VEHICLE SPEED SPECIFICATION

VHCL SPEED SE 80 - 120 km/h (50 - 75 MPH)

If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE ".