CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL RELAY.

1) Disconnect the connectors from the ECM.

2) Turn the ignition switch to ON.

3) Measure the voltage between electronic throttle control relay connector and chassis ground.

Connector & terminal

LHD model with push button start

(B220) No. 32 (+) — Chassis ground (−):

Except for LHD model with push button start

(B220) No. 31 (+) — Chassis ground (−):

QUESTION

Is the voltage 10 V or more?

Yes No

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