Diagnostic Procedure

Check resistance between engine coolant temperature sensor terminals 1 and 2 as shown in the figure.

Fig 1: Checking Resistance Between Engine Coolant Temperature Sensor Terminals 1 And 2

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

1. OK GO TO 2.
2. NG Replace engine coolant temperature sensor.

When the engine is cold [lower than 70°C (158°F)] condition, grasp lower radiator hose and confirm the engine coolant does not flow.

OK or NG 

1. OK GO TO 3.
2. NG Replace or replace thermostat. Refer to "THERMOSTAT ".

• Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT  " .
• Refer to WIRING DIAGRAM  .
  1. INSPECTION END