CHECK HARNESS BETWEEN ECM AND OIL TEMPERATURE SENSOR CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from the ECM and oil temperature sensor.

3) Measure the resistance between ECM and chassis ground.

Connector & terminal

(B134) No. 23 — Chassis ground:

QUESTION

Is the resistance 1 MΩ or more?

Yes No

Replace the oil temperature sensor.

Repair the short circuit to ground in harness between ECM and oil temperature sensor.