CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL.

1) Turn the ignition switch to ON.

2) Measure the voltage between electronic throttle control connector and engine ground.

Connector & terminal

(E57) No. 4 (+) — Engine ground (−):

QUESTION

Is the voltage 4.85 V or more?

Yes No

Repair the short circuit to power in the harness between ECM and electronic throttle control connector.