Engine Coolant Temperature Receiver Gauge Malfunction

Engine Coolant Temperature Receiver Gauge Malfunction

DESCRIPTION

- In this circuit, the meter CPU receives engine coolant temperature signals from the ECM using 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:

Step 1:

Step 2-4:

Step 4 (Continued)-5:

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".