CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL RELAY CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from ECM.

3) Measure the resistance between ECM and chassis ground.

Connector & terminal

(B135) No. 6 — Chassis ground:

QUESTION

Is the resistance 1 MΩ or more?

Yes No

Repair the poor contact of ECM connector.

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