CHECK HARNESS BETWEEN ECM AND OIL TEMPERATURE SENSOR CONNECTOR.

1) Connect all connectors.

2) Turn the ignition switch to ON.

3) Measure the voltage between ECM and chassis ground.

Connector & terminal

(B134) No. 23 (+) — Chassis ground (−):

QUESTION

Is the voltage 5 V or more?

Yes No

Repair the short circuit to power supply in the harness between the ECM and oil temperature sensor connector.

Replace the oil temperature sensor.