DTC P2103: Throttle Actuator "A" Control Motor Circuit High: Notes

WARNING: This page is about a different variant/trim than selected.

DTC detecting condition:

Immediately at fault recognition

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode Ref. to OPERATION , Clear Memory Mode and Inspection Mode Ref. to PROCEDURE , Inspection Mode.

Wiring diagram:

Engine Electrical System Ref. to WIRING DIAGRAM , Engine Electrical System.

Fig 1: Throttle Actuator "A" Control Motor Circuit High Range/Performance - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

Step	Check	Yes	No
1 CHECK ELECTRONIC THROTTLE CONTROL RELAY. Turn the ignition switch to OFF. Remove the electronic throttle control relay. Measure the resistance between electronic throttle control relay terminals. Terminals No. 22 - No. 23:	Is the resistance 1 MΩ or more?	Go to step 2	Replace the electronic throttle control relay. Ref. to ELECTRICAL COMPONENT LOCATION
2 CHECK SHORT CIRCUIT OF ELECTRONIC THROTTLE CONTROL RELAY POWER SUPPLY. Turn the ignition switch to ON. Measure the voltage between electronic throttle control relay connector and chassis ground. Connector & terminal (B48) No. 22 (+) - Chassis ground (-):	Is the voltage 10 V or more?	Repair the short circuit to power in the harness between ECM connector and electronic throttle control relay.	Go to step 3
3 CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL RELAY. Turn the ignition switch to OFF. Disconnect the connector from ECM. Measure the resistance between ECM connector and chassis ground. Connector & terminal (B134) No. 65 - Chassis ground:	Is the resistance 1 MΩ or more?	Repair the poor contact of ECM connector.	Repair the short circuit to ground in harness between ECM connector and electronic throttle control relay.