CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL.

1) Connect the connector to ECM.

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

Connector & terminal

(E57) No. 3 — Engine ground:

QUESTION

Is the resistance less than 5 Ω?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

Open circuit of harness between ECM and engine ground

Poor contact in ECM connector

Poor contact of joint connector

Poor contact of coupling connector