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Home >> Subaru >> 2013 >> Legacy Premium, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 37 (Engine Controls (Diagnostics) (H4DOTC)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0116 Engine Coolant Temperature Sensor 1 Circuit Range/Performance >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK FOR ANY OTHER DTC ON DISPLAY.  Is any other DTC displayed? Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > Go to step 2. 
2 CHECK ENGINE COOLANT TEMPERATURE SENSOR. 
  1. Disconnect the connectors from the engine coolant temperature sensor.
  2. Measure the resistance between engine coolant temperature sensor terminals when the engine coolant is cold and after warmed up.

    Terminals 

    No. 1 - No. 2: 

 Is the resistance of engine coolant temperature sensor different between when engine coolant is cold and after warmed up? Repair the poor contact of ECM connector. Replace the engine coolant temperature sensor. < Refer to ENGINE COOLANT TEMPERATURE SENSOR . >
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