RM38N0EC _58 Vehicle Interior _111835 METER / GAUGE / DISPLAY _0504957 METER / GAUGE SYSTEM(for Optitron Meter Type) J

METER / GAUGE / DISPLAY  METER / GAUGE SYSTEM(for Optitron Meter Type)  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.

·

When replacing any of the following ECUs, update the ECU security key.

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

-

Combination meter assembly

-

ECM


·

Before replacing the ECM, refer to Service Bulletin.*

*: for Gasoline Model




PROCEDURE

1.CHECK CAN COMMUNICATION SYSTEM
a.

Check if CAN communication system DTCs are output.

for HV Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HV Model)>DIAGNOSIS SYSTEM

for Gasoline Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>DIAGNOSIS SYSTEM


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



A

2.CHECK FOR DTC (SFI SYSTEM)

B

GO TO CAN COMMUNICATION SYSTEM

for HV Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HV Model)>HOW TO PROCEED WITH TROUBLESHOOTING

for Gasoline Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING


3.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
E441821C02
2.604,0.635 1.396,0.677 false 2.115,1.74 1.396,0.688 false 1.281,1.708 1.396,0.677 false 2.594,0.938 1.396,0.688 false 2.385,1.458 1.396,0.677 false 1.01,1.531 1.385,0.677 false 1.656,1.75 1.396,0.688 false 1.24,1.75 1.438,1.917 0.198,0.167 10 false 2 1.646,1.802 1.875,2.042 0.229,0.24 10 false 3 2.156,1.76 2.375,1.948 0.219,0.188 10 false 4 0.948,1.573 1.198,1.771 0.25,0.198 10 false 1 2.458,1.458 2.615,1.656 0.156,0.198 10 false 5 2.677,0.906 2.833,1.104 0.156,0.198 10 false 6 2.677,0.573 2.833,0.771 0.156,0.198 10 false 7 0.083,0.073 0.396,0.271 0.313,0.198 10 false *a
*a Engine Coolant Temperature Receiver Gauge


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
(for HV Model) 		Engine Coolant Temperature Receiver Gauge Indication
(for Gasoline Model)
Water Temperature Meter Operation
(50C, 122F) 		Between 1 and 2 is indicated Approximately 1 is indicated
Water Temperature Meter Operation
(60C, 140F) 		Between 2 and 3 is indicated Approximately 2 is indicated
Water Temperature Meter Operation
(70C, 158F) 		Approximately 4 is indicated Approximately 3 is indicated
Water Temperature Meter Operation
(80C, 176F) 		Approximately 4 is indicated Approximately 4 is indicated
Water Temperature Meter Operation
(Middle) 		Approximately 4 is indicated Approximately 4 is indicated
Water Temperature Meter Operation
(110C, 230F) 		Between 4 and 5 is indicated Between 4 and 5 is indicated
Water Temperature Meter Operation
(120C, 248F) 		Approximately 6 is indicated Approximately 6 is indicated
Water Temperature Meter Operation
(127C, 260F) 		Approximately 7 is indicated Approximately 7 is indicated



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

Result:
Result Proceed to
Active Test can be performed correctly A
Active Test cannot be performed correctly B



A

REPLACE ECM

for HV Model: Click hereEngine / Hybrid System>A25D-FXS, A25F-FXS (ENGINE CONTROL)>ECM>REMOVAL

for Gasoline Model: Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>ECM>REMOVAL


B

REPLACE COMBINATION METER ASSEMBLY

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