CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL RELAY.

1) Turn the ignition switch to OFF.

2) Measure the resistance between ECM connector and electronic throttle control relay connector.

Connector & terminal

(B136) No. 21 — (B309) No. 3:

(B136) No. 1 — (B309) No. 4:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the open circuit of harness between ECM and electronic throttle control relay.