Engine Coolant Temperature Gauge Malfunction [09/2014 - ]: Procedure

1. Check if a CAN communication DTC is output (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] or HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] ).
   RESULT
   
   

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

Result:  B

B 

GO TO CAN COMMUNICATION SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] or HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] )

Result:  A

A 

See step  2

1. Use the Active Test to check the operation of the engine coolant temperature receiver gauge (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015] or DATA LIST / ACTIVE TEST [10/2015 - ] ).
   COMBINATION METER
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Water Temperature Meter Operation	Engine coolant temperature receiver gauge	Low, Normal or High	-

   OK

   Engine coolant temperature receiver gauge indication is normal.

Result:  NG

NG 

REPLACE COMBINATION METER ASSEMBLY 

(Refer to REMOVAL [09/2014 - ] )

Result:  OK

OK 

See step  3

1. Use the Data List to check the engine coolant temperature (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015] or DATA LIST / ACTIVE TEST [10/2015 - ] ).
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Coolant Temperature	Engine coolant temperature/0 to 127.5°C (0 to 261.5°F)	After warming up: 75 to 100°C (167 to 212°F)	-

   OK

   Engine coolant temperature value displayed on the Techstream is almost the same as the engine coolant temperature receiver gauge indication.

Result:  NG

NG 

REPLACE COMBINATION METER ASSEMBLY 

(Refer to REMOVAL [09/2014 - ] )

Result:  OK

OK 

See step  4

1. Use the Data List to check the engine coolant temperature (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015] or DATA LIST / ACTIVE TEST [10/2015 - ] ).
   ENGINE AND ECT
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Coolant Temp	Engine coolant temperature/Min.: -40°C (-40°F), Max: 215°C (419°F)	75 to 100°C (167 to 212°F): After warming up	-

   OK

   Engine coolant temperature value displayed on the Techstream is almost the same as the previously recorded value displayed on the Techstream.

Result:  NG

NG 

GO TO SFI SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] )

Result:  OK

OK 

See step  5

1. Replace the combination meter assembly with a new or normally functioning one (Refer to REMOVAL [09/2014 - ] ).

   OK

   The operation of the engine coolant temperature gauge returns to normal.

Result:  OK

OK 

END (COMBINATION METER ASSEMBLY WAS DEFECTIVE) 

Result:  NG

NG 

REPLACE ECM 

(Refer to REMOVAL [09/2014 - ] )