DTC Troubleshooting

DTC P2118: Throttle Actuator Current Range/Performance Problem

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

1. Disconnect the throttle actuator control module 16P connector.
2. Measure resistance between throttle actuator control module 16P connector terminals No. 1 and No. 8.






Is there about 1.0 ohm or less?

YES - Go to step 3.

NO - Substitute a known-good throttle actuator control module, then go to step 6 and recheck. If DTC P2118 is not indicated, replace the original throttle actuator control module, then go to step 6.

3. Disconnect the throttle body 6P connector.
4. At the throttle body side, measure resistance between throttle body 6P connector terminals No. 5 and No. 6 with the throttle fully closed.






Is there about 1.0 ohm or less?

YES - Go to step 5.

NO - Repair short in the wires between the throttle body and the throttle actuator control module (motor drive lines), then go to step 6.

5. Replace the throttle body.
6. Reconnect all connectors.
7. Turn the ignition switch ON (II).
8. Reset the ECM/PCM with the HDS.
9. Do the ECM/PCM idle learn procedure.
10. Turn the ignition switch OFF.
11. Turn the ignition switch ON (II).
12. Slowly press the accelerator pedal to the floor.
13. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2118 indicated?

YES - Check for poor connections or loose terminals at the throttle body and the throttle actuator control module, then go to step 1.

NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.