ENGINE (DIAGNOSTICS)(H4SO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH

DTC DETECTING CONDITION:

Immediately at fault recognition

CAUTION:

After repairing or replacing the defective part, perform the Clear Memory Mode and Inspection Mode .

WIRING DIAGRAM:

STEPCHECKYESNO

1.CHECK ELECTRONIC THROTTLE CONTROL RELAY.

1) Turn the ignition switch to OFF.

2) Remove the electronic throttle control relay.

3) Measure the resistance between electronic throttle control relay terminals.

Terminals

No. 2 — No. 4:

Is the resistance 1 MΩ or more?

Replace the electronic throttle control relay.

2.CHECK SHORT CIRCUIT OF ELECTRONIC THROTTLE CONTROL RELAY POWER SUPPLY.

1) Turn the ignition switch to ON.

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

Connector & terminal

(B309) No. 4 (+) — Chassis ground (−):

Is the voltage 5 V or more?

Repair the power supply short circuit of harness between ECM and electronic throttle control relay.

3.CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL RELAY.

1) Turn the ignition switch to OFF.

2) Disconnect the connectors from the ECM.

3) Measure the resistance between ECM connector and chassis ground.

Connector & terminal

(B136) No. 1 — Chassis ground:

Is the resistance 1 MΩ or more?

Repair the poor contact of ECM connector. Replace the ECM if defective.

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