DTC Troubleshooting: P2101 (40)

DTC P2101:  Throttle Actuator System Malfunction

1.Record this freeze data:
  • Engine speed
  • Vehicle speed
  • Accelerator position

2.Clear the DTC with the HDS.

3.Do the ETCS TEST in the INSPECTION MENU with the HDS.

4.Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2101 indicated?


YES - Go to 7.


NO - Go to 5.


5.Test-drive the vehicle for several minutes in the range of the recorded freeze data.

6.Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2101 indicated?


YES - Go to 7.


NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the throttle body and at the throttle actuator control module, then do the throttle body cleaning.n


7.Turn the ignition switch OFF.

8.Disconnect the intake air duct from the throttle body.

9.Turn the ignition switch ON (II).

10.Clear the DTC with the HDS.

11.Do the ETCS TEST in the INSPECTION MENU with the HDS.

12.Visually check the throttle valve operation.

NOTE: Be careful not to pinch a finger during check.

Does a throttle valve operate smoothly?


YES - Clean the throttle body, then go to 20 and recheck. If DTC P2101 is indicated, then go to 18.


NO - Go to 13.


13.Turn the ignition switch OFF.

14.Disconnect the throttle body 6P connector.

15.Disconnect the throttle actuator control module 16P connector.

16.Connect the throttle body 6P connector terminals No. 5 and No. 6 with a jumper wire.

 

17.Check for continuity between throttle actuator control module 16P connector terminals No. 1 and No. 8.

 

Is there continuity?


YES - Substitute a known-good throttle actuator control module, then go to 20 and recheck. If DTC P2101 is not indicated, replace the original throttle actuator control module, then go to 20. If DTC P2101 is indicated, then go to 18.


NO - Repair open in the wires between the throttle body and the throttle actuator control module (motor drive lines), then go to 20.


18.Turn the ignition switch OFF.

19.Replace the throttle body.

20.Reconnect all connectors.

21.Turn the ignition switch ON (II).

22.Reset the ECM/PCM with the HDS.

23.Do the ECM/PCM idle learn procedure.

24.Test-drive the vehicle for several minutes in the range of the recorded freeze data.

25.Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?


YES - If DTC P2101 is indicated, check for poor connections or loose terminals at the throttle body and the throttle actuator control module, then do the throttle body cleaning, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.


NO - Troubleshooting is complete.n