Engine Coolant Temperature Receiver Gauge Malfunction [07/2015 - ]: Procedure

1. Check if CAN communication DTCs are output. Refer to DIAGNOSIS SYSTEM [07/2015 - 08/2016] Refer to DIAGNOSIS SYSTEM [08/2016 - ] w/ Central Gateway ECU. Refer to DIAGNOSIS SYSTEM [07/2015 - 08/2016] Refer to DIAGNOSIS SYSTEM [08/2016 - ] w/o Central Gateway ECU

   Result

   Result	Proceed to
   CAN communication DTCs are not output.	A
   CAN communication DTCs are output (w/ Central Gateway ECU).	B
   CAN communication DTCs are output (w/o Central Gateway ECU).	C

Result:  B

B 

GO TO CAN COMMUNICATION SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2015 - ]

Result:  C

C 

GO TO CAN COMMUNICATION SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2015 - ]

Result:  A

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Active Test.
5. Perform the Active Test according to the display on the Techstream.
   COMBINATION METER
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Water Temperature Meter Operation	Engine coolant temperature receiver gauge	OFF, LOW, NORMAL, HIGH	-

   OK

   Engine coolant temperature receiver gauge indication is normal.

Result:  NG

NG 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [07/2015 - ]

Result:  OK

OK 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Data List.
5. Set the vehicle in maintenance mode using the Techstream. Refer to INSPECTION MODE PROCEDURE [07/2015 - ]
6. Read the Data List according to the display on the Techstream.
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Coolant Temperature	Engine coolant temperature/Min.: 0°C (32°F), Max.: 127.5°C (261.5°F)	After warming up: 75 to 100°C (167 to 212°F)	-

   OK

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

   HINT: 

   • When the Data List values and engine coolant temperature receiver gauge values match, a signal output error of the ECM or an internal malfunction of the combination meter assembly is suspected.
   • When the Data List values and engine coolant temperature receiver gauge values do not match, an internal malfunction of the combination meter assembly is suspected.

Result:  NG

NG 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [07/2015 - ]

Result:  OK

OK 

See step  4

1. Check if SFI system DTCs are output. Refer to DTC CHECK / CLEAR [07/2015 - ]

   Result

   Result	Proceed to
   DTCs are not output.	A
   DTCs are output.	B

Result:  B

B 

GO TO SFI SYSTEM 

Refer to DIAGNOSTIC TROUBLE CODE CHART [07/2015 - ]

Result:  A

A 

See step  5

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus:
   1. for Combination Meter: Body Electrical / Combination Meter / Data List.
   2. for Engine and ECT: Powertrain / Engine and ECT / Data List.
5. Set the vehicle in maintenance mode using the Techstream. Refer to INSPECTION MODE PROCEDURE [07/2015 - ]
6. Read the Data List according to the display on the Techstream.
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Coolant Temperature	Engine coolant temperature/Min.: 0°C (32°F), Max.: 127.5°C (261.5°F)	After warming up: 75 to 100°C (167 to 212°F)	-

   ENGINE AND ECT
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Stored as Freeze Frame Data
   Coolant Temp	Engine coolant temperature/Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	Yes
   	Diagnostic Note: This is the engine coolant temperature. HINT:  After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal. If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted. Check if the engine overheats when the value indicates higher than 135°C (275°F).

   Result

   Result	Proceed to
   Data List values of the ECUs do not match.	A
   Data List values of the ECUs match.	B

   HINT: 

   • When the Data List values of the ECUs match, an internal malfunction of the ECM is suspected.
   • When the Data List values of the ECUs do not match, a signal output error of the ECM or an internal malfunction of the combination meter assembly is suspected.

Result:  B

B 

REPLACE ECM 

Refer to REMOVAL [07/2015 - ]

Result:  A

A 

See step  6

1. Replace the combination meter assembly with a new one. Refer to REMOVAL [07/2015 - ]

   OK

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

Result:  OK

OK 

END 

Result:  NG

NG 

REPLACE ECM 

Refer to REMOVAL [07/2015 - ]