1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM.
3) Measure the resistance between ECM connectors.
Connector & terminal
(B134) No. 19 — (B134) No. 28:
Is the resistance 1 MΩ or more?
Repair the poor contact of electronic throttle control connector. Replace the electronic throttle control if defective.
Repair the short circuit of harness to power supply between ECM and electronic throttle control connector.