RM38T0EC _58 Vehicle Interior _112289 METER / GAUGE / DISPLAY _0504968 METER / GAUGE SYSTEM J

METER / GAUGE / DISPLAY  METER / GAUGE SYSTEM  Engine Coolant Temperature Receiver Gauge Malfunction  


DESCRIPTION

In this circuit, the combination meter assembly receives engine coolant temperature signals from the ECM via CAN communication. The combination meter assembly displays an engine coolant temperature warning based on the data received from the ECM.

WIRING DIAGRAM

E370855E20
0.677,2.271 3.042,2.521 2.365,0.25 10 false : CAN Communication Line 1.656,1.563 3.208,2.115 1.552,0.552 10 false ECM 4.677,1.563 6.656,1.969 1.979,0.406 10 false Combination Meter Assembly

CAUTION / NOTICE / HINT

NOTICE:
·

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

·

Before replacing the ECM, refer to Service Bulletin.

·

When replacing the combination meter assembly, update the ECU security key.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>UPDATE ECU SECURITY KEY



PROCEDURE

2.CHECK FOR DTC (SFI SYSTEM)
a.

Check if SFI system DTCs are output.

Powertrain > Engine > Trouble Codes
50001 372

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



A

3.CONFIRM MODEL

B

GO TO SFI SYSTEM

for HEV Model: Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>SFI SYSTEM>DIAGNOSTIC TROUBLE CODE CHART

for Gasoline Model: Click hereEngine / Hybrid System>M20A-FKS, M20C-FKS, M20E-FKS (ENGINE CONTROL)>SFI SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


3.CONFIRM MODEL
a.

Choose the model to be inspected.


Result:
Result Proceed to
for 7 Inch Type Multi-information Display A
for 12.3 Inch Type Multi-information Display B



A

4.PERFORM ACTIVE TEST USING GTS

B

5.READ VALUE USING GTS (COOLANT TEMPERATURE)
4.PERFORM ACTIVE TEST USING GTS
a.

Perform the Active Test according to the display on the GTS.

Body Electrical > Combination Meter > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Water Temperature Meter Operation (50C,122F) Engine coolant temperature receiver gauge
(50°C, 122°F) 		ON See [Display 1]
Water Temperature Meter Operation (60C,140F) Engine coolant temperature receiver gauge
(60°C, 140°F) 		ON See [Display 1]
Water Temperature Meter Operation (70C,158F) Engine coolant temperature receiver gauge
(70°C, 158°F) 		ON See [Display 1]
Water Temperature Meter Operation (80C,176F) Engine coolant temperature receiver gauge
(80°C, 176°F) 		ON See [Display 1]
Water Temperature Meter Operation (Middle) Engine coolant temperature receiver gauge
(Middle) 		ON See [Display 1]
Water Temperature Meter Operation (110C,230F) Engine coolant temperature receiver gauge
(110°C, 230°F) 		ON See [Display 1]
Water Temperature Meter Operation (120C,248F) Engine coolant temperature receiver gauge
(120°C, 248°F) 		ON See [Display 1]
Water Temperature Meter Operation (127C,260F) Engine coolant temperature receiver gauge
(127°C, 260°F) 		ON See [Display 1]
[Display 1]: Water Temperature Meter Operation
E497649C01
2.417,2.833 2.417,0.5 false 2.167,0.5 2.417,0.5 false 2.427,1.667 2.677,1.667 false 2.167,2.833 2.417,2.833 false 0.135,0.115 0.448,0.313 0.313,0.198 10 false *a 2.729,1.604 3.042,1.802 0.313,0.198 10 false *b
*a Engine Coolant Temperature Receiver Gauge
*b Segments


HINT:

Refer to the following table for the specified engine coolant temperature receiver gauge position for each selected value:

Tester Display engine coolant temperature receiver gauge indication
Water Temperature Meter Operation
(50C, 122F) 		3rd segment illuminated*1
2nd segment illuminated*2
Water Temperature Meter Operation
(60C, 140F) 		4th segment illuminated*1
2nd segment illuminated*2
Water Temperature Meter Operation
(70C, 158F) 		4th segment illuminated*1
3rd segment illuminated*2
Water Temperature Meter Operation
(80C, 176F) 		4th segment illuminated
Water Temperature Meter Operation
(Middle) 		4th segment illuminated
Water Temperature Meter Operation
(110C, 230F) 		5th segment illuminated
Water Temperature Meter Operation
(120C, 248F) 		8th segment illuminated
Water Temperature Meter Operation
(127C, 260F) 		8th segment illuminated

*1: for HEV Model

*2: for Gasoline Model




Body Electrical > Combination Meter > Active Test
Tester Display
Water Temperature Meter Operation (50C,122F)
50004 409 236
Body Electrical > Combination Meter > Active Test
Tester Display
Water Temperature Meter Operation (60C,140F)
50004 409 237
Body Electrical > Combination Meter > Active Test
Tester Display
Water Temperature Meter Operation (70C,158F)
50004 409 238
Body Electrical > Combination Meter > Active Test
Tester Display
Water Temperature Meter Operation (80C,176F)
50004 409 239
Body Electrical > Combination Meter > Active Test
Tester Display
Water Temperature Meter Operation (Middle)
50004 409 240
Body Electrical > Combination Meter > Active Test
Tester Display
Water Temperature Meter Operation (110C,230F)
50004 409 241
Body Electrical > Combination Meter > Active Test
Tester Display
Water Temperature Meter Operation (120C,248F)
50004 409 242
Body Electrical > Combination Meter > Active Test
Tester Display
Water Temperature Meter Operation (127C,260F)
50004 409 243
OK:

Engine coolant temperature receiver gauge indication is normal.



Result:
Proceed to
OK
NG



OK

REPLACE ECM

for HEV Model: Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>ECM>REMOVAL

for Gasoline Model: Click hereEngine / Hybrid System>M20A-FKS, M20C-FKS, M20E-FKS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPLACE COMBINATION METER ASSEMBLY

Click hereVehicle Interior>METER / GAUGE / DISPLAY>COMBINATION METER>REMOVAL


5.READ VALUE USING GTS (COOLANT TEMPERATURE)
a.

Using the GTS, read the Data List.


Body Electrical > Combination Meter > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Coolant Temperature Engine coolant temperature Min.: 0°C (0°F), Max.: 127.0 °C (261 °F) 75 to 100°C (167 to 212°F): After warming up the engine -
Powertrain > Engine > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Coolant Temperature Engine coolant temperature Min.: -40°C (-40°F), Max: 140 °C (284 °F) 75 to 100°C (167 to 212°F): After warming up the engine This is the engine coolant temperature.
HINT:
·

After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F).

·

After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be 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 if the value indicated is higher than 135°C (275°F).



Body Electrical > Combination Meter > Data List
Tester Display
Coolant Temperature
50003 409 48
Powertrain > Engine > Data List
Tester Display
Coolant Temperature
50003 372 205
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.



OK:

The Data List values of the ECUs do not match.


Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPLACE COMBINATION METER ASSEMBLY

Click hereVehicle Interior>METER / GAUGE / DISPLAY>COMBINATION METER>REMOVAL