Inspection Procedure

HINT:

If there is an open or short in the engine coolant temperature sensor circuit, the ECM outputs the DTCs. Perform troubleshooting with the "SFI System" (See DTC CHECK / CLEAR ).

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch to the ON position.
   3. Turn the tester ON.
   4. Enter the following menus: DIAGNOSIS / OBD/MOBD / METER/ACTIVE TEST.
   5. Check the values by referring to the values in the table below.

      METER: 

      METER SPECIFICATION
      
      

      Item	Test Details	Diagnostic Note
      COOLANT TEMP	LOW, NORMAL, HI	-

      OK: Needle indication is normal. 

   NG: REPLACE COMBINATION METER ASSEMBLY 

   OK: Go to Next Step 

2. READ VALUE OF INTELLIGENT TESTER 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch to the ON position.
   3. Turn the tester ON.
   4. Enter the following menus: DIAGNOSIS / OBD/MOBD / ENGINE / DATA LIST.
   5. Check the values by referring to the values in the table below.

      ENGINE: 

      ENGINE REFERENCE
      
      

      Item	Measurement Item/Range (Display)	Normal Condition	Diagnostic Note
      WATER TEMP	Engine coolant temp: -40°C (-40°F) to 140°C (284°F)	After warming up: 80 to 95°C (176 to 203°F)	-

      OK: Engine coolant temperature displayed on the tester is almost the same as needle indication. 

   NG:  GO TO SFI SYSTEM

   OK: Go to Next Step 

3. REPLACE COMBINATION METER ASSEMBLY 
   1. Replace the combination meter assembly with a new or normal one.

      OK: The operation of the combination meter returns to normal. 

   NG: REPLACE ECM 

   OK: END