DTC Advanced Diagnostics: P2101 (3.0L Engine)
DTC P2101: Electronic Throttle Control System (ETCS) Malfunction
General Description
The diagnosis related to the electric throttle control system is done during the vehicle ON mode and OFF (LOCK) mode. The powertrain control module (PCM) opens and closes the throttle actuator to monitor the performance of the throttle body. If the difference between the actual throttle valve position and the target throttle valve position is large, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 200 milliseconds or more |
| DTC Type | One drive cycle, MIL on |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| 12 volt battery voltage [Battery] | 6 V | - |
| Other | Not during throttle valve fully closed position learning | |
[ ]: HDS Parameter
Malfunction Threshold
The difference between the actual throttle valve position and the target throttle valve position is larger than value as shown in the following table for at least 200 milliseconds:
| Target throttle valve position | 11.9 deg. | 18.78 deg. | 26.3 deg. | 56.9 deg. |
| Difference between the actual throttle valve position and the target throttle valve position | 6.88 deg. | 7.52 deg. | 30.6 deg. | 40 deg. |
Possible Cause
- Throttle actuator MTR2 line open
- Throttle actuator MTR1 line open
- TP sensor A/B failure
- Throttle body failure
- PCM internal circuit failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, the freeze data, and the on-board snapshot are stored in the PCM memory.
Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.