Malfunction in Water Temperature Warning Light (from 07/2011)

METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for Hatchback): Malfunction in Water Temperature Warning Light
- Malfunction in Water Temperature Warning Light

DESCRIPTION

In this circuit, the meter CPU receives engine coolant temperature signals from the ECM using the CAN communication system (CAN V1 Bus). The meter CPU displays engine coolant temperature that is calculated based on the data received from the ECM.

WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
If there is an open or short in the engine coolant temperature sensor circuit, the ECM stores the DTCs. Troubleshoot the SFI System How To Proceed With Troubleshooting (from 07/2011).

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication DTC is output Diagnosis System (from 07/2011).

Result





B -- GO TO CAN COMMUNICATION SYSTEM Diagnosis System (from 07/2011)

C -- GO TO CAN COMMUNICATION SYSTEM Diagnosis System (from 07/2011)
A -- Continue to next step.

2. PERFORM ACTIVE TEST USING TECHSTREAM (COOLANT TEMP)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.

(e) According to the display on the Techstream, perform the Active Test.

Combination Meter





OK:

Value selected during Active Test is displayed.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal (from 07/2011)
OK -- Continue to next step.

3. READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Data List.

(e) According to the display on the Techstream, read the Data List.

Combination Meter





OK:

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

NG -- REPLACE COMBINATION METER ASSEMBLY Removal (from 07/2011)
OK -- Continue to next step.

4. CHECK ENGINE CONTROL SYSTEM

(a) Check if a engine control DTC is output Reading and Clearing Diagnostic Trouble Codes.

Result





B -- GO TO SFI SYSTEM SFI System (for Hatchback)

A -- REPLACE COMBINATION METER ASSEMBLY Removal (from 07/2011)