METER / GAUGE SYSTEM > Engine Coolant Temperature Receiver Gauge Malfunction

for Preparation Click here


DESCRIPTION

The ECM sends engine coolant temperature sensor signals to the combination meter assembly via CAN communication. Then the combination meter assembly indicates the engine coolant temperature.

WIRING DIAGRAM


E140490E28


INSPECTION PROCEDURE

1.CONFIRM DTC OUTPUT (CAN COMMUNICATION SYSTEM)

  1. Check DTC (Click here).
    Result 
    Result
    		Proceed to
    DTC U0100 is not output
    		A
    DTC U0100 is output
    		B



B
GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)
A


2.CONFIRM DTC OUTPUT (ENGINE CONTROL SYSTEM)

  1. Check DTC (Click here).
    Result 
    Result
    		Proceed to
    Engine control DTC is not output
    		A
    Engine control DTC is output (1KR-FE)
    		B
    Engine control DTC is output (1NR-FE)
    		C
    Engine control DTC is output (1ND-TV)
    		D



B
GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)

C
GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)

D
GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)
A


3.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (COOLANT TEMP)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

  1. Enter the following menus: Body / Combination Meter / Active Test.

  1. According to the display on the tester, perform the Active Test.

    Combination Meter 
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Indicat. Lamp Coolant Cool
    		Engine coolant temperature indicator light
    		ON: Engine coolant temperature indicator light illuminates.
    OFF: Engine coolant temperature indicator light turn off.
    		-
    Indicat. Lamp Coolant Hot
    		Engine coolant temperature warning light
    		ON: Engine coolant temperature warning light illuminates.
    OFF: Engine coolant temperature warning light turn off.
    		-

    OK:
    Value selected during Active Test is displayed.



NG
REPLACE COMBINATION METER ASSEMBLY (Click here)
OK


4.READ VALUE USING INTELLIGENT TESTER (COOLANT TEMP)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

  1. Enter the following menus: Body / Combination Meter / Data List.

  1. According to the display on the tester, read the Data List.

    Combination Meter 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Coolant Temperature
    		Engine coolant temperature
    Min.: 0 (0)
    Max.: 127.5 (261.5)
    		After warming up: 80 to 100 (176 to 212)
    		Unit: °C ( °F)

    OK:
    Vehicle's coolant temperature and tester value are the same.



NG
REPLACE COMBINATION METER ASSEMBLY (Click here)
OK

USE SIMULATION METHOD TO CHECK (Click here)