Engine - Coolant Temperature Sensor/Switch: Testing and Inspection

DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE
WITH CONSULT
1) Turn ignition switch "ON".
2) Select "DATA MONITOR" mode with CONSULT.
3) Wait at least 5 seconds.

OR

WITH GST
1) Turn ignition switch "ON" and wait at least 5 seconds.
2) Select "MODE 3" with GST.

OR

WITH NO TOOLS
1) Turn ignition switch "ON" and wait at least 5 seconds.
2) Turn ignition switch "OFF", wait at least 5 seconds and then turn "ON".
3) Perform "Diagnostic Test Mode II" (Self-diagnostic results) with ECM.




WIRING DIAGRAM




DIAGNOSTIC PROCEDURE


COMPONENT INSPECTION




Check resistance as shown in the figure.




If NG, replace engine coolant temperature sensor.