Engine Coolant Temperature Receiver Gauge Malfunction [12/2013 - 11/2016]: Procedure
- CHECK CAN COMMUNICATION SYSTEM
- Check if CAN communication DTCs are output.
Refer to DIAGNOSIS SYSTEM [12/2013 - 11/2016]
Result Proceed to CAN communication DTCs are not output. A CAN communication DTCs are output. B
Result:
B
GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - 11/2016]
Result:
A
See step 2
- Check if CAN communication DTCs are output.
- PERFORM ACTIVE TEST USING TECHSTREAM (WATER TEMPERATURE METER OPERATION)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Combination Meter / Active Test.
- Check the operation by referring to the table below.
Body Electrical > Combination Meter > Active Test
Tester Display Measurement Item Control Range Diagnostic Note Water Temperature Meter Operation Engine coolant temperature receiver gauge OFF, LOW, NORMAL, HIGH - Body Electrical > Combination Meter > Active Test
Tester Display Water Temperature Meter Operation OK
Engine coolant temperature receiver gauge indication is normal.
Result:
NG
REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL [12/2013 - ]
Result:
OK
See step 3
- READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Combination Meter / Data List.
- Check the values by referring to the table below.
Body Electrical > Combination Meter > Data List
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) 75 to 100°C (167 to 212°F): After warming up engine - Body Electrical > Combination Meter > Data List
Tester Display Coolant Temperature 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
REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL [12/2013 - ]
Result:
OK
See step 4
- CHECK FOR DTC
- Check if SFI System DTCs are output.
for 1AR-FE: Refer to DTC CHECK / CLEAR [12/2013 - 11/2016]
for 2GR-FE: Refer to DTC CHECK / CLEAR [12/2013 - 11/2016]
Powertrain > Engine > Trouble Codes
Result Proceed to SFI system DTCs are not output. A SFI system DTCs are output. B
Result:
B
GO TO SFI SYSTEM
for 1AR-FE: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - 11/2016]
for 2GR-FE: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - 11/2016]
Result:
A
See step 5
- Check if SFI System DTCs are output.
- READ VALUE USING TECHSTREAM (COOLANT TEMP, COOLANT TEMPERATURE)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus:
- for Engine: Powertrain / Engine / Data List.
- for Combination Meter: Body Electrical / Combination Meter / Data List.
- Check the values by referring to the table below.
- Engine
Powertrain > Engine > Data List
Tester Display Measurement Item Range Normal Condition Reference Value Diagnostic Note 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 engine - 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).
Powertrain > Engine > Data List
Tester Display Coolant Temp - Combination Meter
Body Electrical > Combination Meter > Data List
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) 75 to 100°C (167 to 212°F): After warming up engine - Body Electrical > Combination Meter > Data List
Tester Display Coolant Temperature
Result Proceed to The data list values of the ECUs match. A The data list values of the ECUs do not 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.
- Engine
Result:
B
REPLACE ECM
for 1AR-FE: Refer to REMOVAL [12/2013 - ]
for 2GR-FE: Refer to REMOVAL [12/2013 - 11/2016]
Result:
A
See step 6
- REPLACE COMBINATION METER ASSEMBLY
- Replace the combination meter assembly with a new or known good one.
Refer to REMOVAL [12/2013 - ]
OK
The operation of the engine coolant temperature receiver gauge returns to normal.
Result:
OK
END
Result:
NG
REPLACE ECM
for 1AR-FE: Refer to REMOVAL [12/2013 - ]
for 2GR-FE: Refer to REMOVAL [12/2013 - 11/2016]
- Replace the combination meter assembly with a new or known good one.