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Home >> Toyota >> 2012 >> Avalon Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P0346)) >> SFI System >> DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem >> Procedure
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DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem: Procedure

  1. CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0116) 
    1. Connect Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Trouble Codes.
    5. Read the DTCs.

      Result

      Result Proceed to
      DTC P0116 is output A
      DTC P0116 and other DTCs are output B

      HINT: 

      If any DTCs other than P0116 are output, troubleshoot those DTCs first.

    B → See step   3 

    A: Go to next step 

  2. INSPECT THERMOSTAT 
    1. Inspect the thermostat. Refer to INSPECTION .

    NG → See step   4 

    OK → REPLACE ENGINE COOLANT TEMPERATURE SENSOR 

  3. GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART  .
  4. REPLACE THERMOSTAT. Refer to  REMOVAL  .