Engine Coolant Temperature Receiver Gauge Malfunction

METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: Engine Coolant Temperature Receiver Gauge Malfunction; 2013 MY FR-S [03/2012 -]
- Engine Coolant Temperature Receiver Gauge Malfunction

DESCRIPTION

The combination meter assembly controls the engine coolant temperature receiver gauge in accordance with the engine coolant temperature sensor signals from the ECM through the CAN communication system.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check if CAN communication DTCs are output Reading and Clearing Diagnostic Trouble Codes.

Result





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

2. PERFORM ACTIVE TEST USING TECHSTREAM (WATER TEMPERATURE METER OPERATION)

(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 tester, perform the Active Test.

Combination Meter





OK:

The value selected during Active Test is displayed.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal
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 tester, read the Data List.

Combination Meter





OK:

The vehicle's coolant temperature and tester value are the same.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal
OK -- Continue to next step.

4. CHECK SFI SYSTEM

(a) Check if the SFI system outputs DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- GO TO SFI SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

5. READ VALUE 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: Powertrain / Engine and ECT / Data List.

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

Engine and ECT





OK:

The vehicle's coolant temperature and tester value are the same.

NG -- GO TO SFI SYSTEM How to Proceed With Troubleshooting
OK -- Continue to next step.

6. REPLACE COMBINATION METER ASSEMBLY

(a) Replace the combination meter assembly with a new or a normal one Removal.

OK:

The operation of the engine coolant temperature receiver gauge returns to normal.

NG -- REPLACE ECM Removal

OK -- END