Meter / Gauge System Engine Coolant Temperature Receiver Gauge Malfunction

Body Electrical. Camry. Acv40 Gsv40
Meter. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CAN COMMUNICATION SYSTEM

PERFORM ACTIVE TEST USING INTELLIGENT TESTER

READ VALUE USING INTELLIGENT TESTER

READ VALUE USING INTELLIGENT TESTER

REPLACE COMBINATION METER ASSEMBLY

METER / GAUGE SYSTEM - Engine Coolant Temperature Receiver Gauge Malfunction


DESCRIPTION

The meter CPU receives engine coolant temperature signals from the ECM via the CAN communication lines (CAN No. 1 Bus). The meter CPU displays engine coolant temperature that is calculated based on the data received from the ECM.

WIRING DIAGRAM


Camry. Acv40 Gsv40.Meter.Meter / Gauge System.Meter / Gauge System Engine Coolant Temperature Receiver Gauge Malfunction


INSPECTION PROCEDURE

HINT:
If there is an open or short in the engine coolant temperature sensor circuit, the ECM outputs the DTCs. Perform troubleshooting with the "SFI System" (CAMRY_ACV40 RM000000PDF05MX.html for 2AZ-FE, CAMRY_ACV40 RM000002DSC00GX.html for 2GR-FE).
1.CHECK CAN COMMUNICATION SYSTEM

  1. Check if CAN communication DTC is output (CAMRY_ACV40 RM000000WIB03ZX.htmlfor LHD, CAMRY_ACV40 RM000000WIB040X.html for RHD).

    Result:

    Result
    		Proceed to
    CAN communication DTC is not output.
    		A
    CAN communication DTC is output.
    		B (CAMRY_ACV40 RM000000WI603XX.htmlfor LHD, CAMRY_ACV40 RM000000WI603YX.html for RHD)


B
GO TO CAN COMMUNICATION SYSTEM
A


2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester ON.

  1. Enter the following menus: Diagnosis / OBD/MOBD / Combination Meter / Active Test.

  1. Check the values by referring to the operation in the table below.

    Combination Meter:
    Tester Display
    		Test Part
    		Control Range
    		Normal Condition
    Water Temperature Meter Operation
    		Engine coolant temperature receiver gauge
    		Low, Normal, High
    		-
    OK:
    Needle indication is normal.


NG
REPLACE COMBINATION METER ASSEMBLY
OK


3.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester ON.

  1. Enter the following menus: Diagnosis / OBD/MOBD / Combination Meter / Data List.


Combination Meter:
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
Coolant Temperature
Engine coolant temperature: 0°C (-40°F) to 127.5°C (284°F)
After warming up: 80 to 95°C (176 to 203°F)
  1. If -40°C (-40°F): sensor circuit open
  1. If 140°C (284°F) or more: sensor circuit shorted
OK:
Engine coolant temperature value displayed on the tester is almost the same as needle indication.


NG
Go to step 4
OK

REPLACE COMBINATION METER ASSEMBLY

4.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester ON.

  1. Enter the following menus: Diagnosis / OBD/MOBD / Engine / Data List.

  1. Check the values by referring to the values in the table below.

    Engine:
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Coolant Temp
    		Engine coolant temperature: -40°C (-40°F) to 140°C (284°F)
    		80 to 100°C (176 to 212°F):
    After warming up
    1. If -40°C (-40°F): sensor circuit open
    1. If 140°C (284°F) or more: sensor circuit shorted
    OK:
    Engine coolant temperature value displayed on the tester is almost the same as needle indication.


NG
REPLACE ECM
OK


5.REPLACE COMBINATION METER ASSEMBLY

  1. Replace the combination meter assembly with a new or a normal one.

OK:
The operation of the combination meter assembly returns to normal.


NG
REPLACE ECM
OK

END