CHECK HARNESS BETWEEN ECM AND OIL FLOW CONTROL SOLENOID VALVE.

1) Turn the ignition switch to OFF.

2) Disconnect the connectors from ECM and oil flow control solenoid valve.

3) Measure the voltage between ECM and chassis ground.

Connector & terminal

(B137) No. 17 (+) — Chassis ground (−):

(B137) No. 16 (+) — Chassis ground (−):

QUESTION

Is the voltage less than 1 V?

Yes No

Repair the short circuit of harness to power supply between ECM and oil flow control solenoid valve connector.