DTC Advanced Diagnostics: P0046 (2.0L Engine) (2024 2025)
DTC P0046 : Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem
General Description
The powertrain control module (PCM) monitors the turbocharger wastegate control actuator, and checks the rationality of control deviation and control duty cycle range. In order to provide these tests, the actual wastegate position is continuously monitored against the commanded value. If the checked values are abnormal, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 0.5 seconds or more |
| DTC Type | One drive cycle, MIL on |
Enable Conditions
| Condition | |
|---|---|
| State of the engine | Running |
Malfunction Threshold
The wastegate position is in a certain range for at least 0.5 seconds.
Possible Cause
The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- 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.