Malfunction in Water Temperature Warning Light: Procedure

1. Check if a CAN communication DTC is output. Refer to DIAGNOSIS SYSTEM .
   RESULT
   
   

   Result	Proceed to
   CAN communication DTC is not output	A
   CAN communication DTC is output	B

B → See step   7 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Active Test.
5. According to the display on the Techstream, perform the Active Test.
   COMBINATION METER
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Indicat. Lamp Coolant Cool	Engine coolant temperature indicator light	OFF/ON	Vehicle stopped and ignition switch ON
   Indicat. Lamp Coolant Hot	Engine coolant temperature warning light	OFF/ON	Vehicle stopped and ignition switch ON

   OK

   Value selected during Active Test is displayed.

NG → See step   5 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Data List.
5. According to the display on the Techstream, read the Data List.
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Coolant Temperature	Engine coolant temperature/ Min.: 0 (32), Max.: 127.5 (261.5)	After warming up: 80 to 100 (176 to 212)	Unit: °C (°F)

   OK

   Vehicle's coolant temperature and Techstream value are the same.

NG → See step   9 

OK: Go to next step 

1. Check if a engine control DTC is output. Refer to DTC CHECK / CLEAR .
   RESULT
   
   

   Result	Proceed to
   Engine control DTC is not output	A
   Engine control DTC is output	B

B → See step   8 

A → See step   6