CHECK HARNESS BETWEEN ENGINE COOLANT TEMPERATURE SENSOR AND ECM CONNECTOR.

1) Turn the ignition switch to ON.

2) Measure the voltage between engine coolant temperature sensor connector and engine ground.

Connector & terminal

(E8) No. 2 (+) — Engine ground (−):

QUESTION

Is the voltage 10 V or more?

Yes No

Repair the short to power supply in harness between ECM and engine coolant temperature sensor connector.