DTC Advanced Diagnostics: P2564, P2565 (1.5L Engine)
DTC P2564: Turbocharger Wastegate Control Actuator Position Sensor Circuit Low Voltage DTC P2565: Turbocharger Wastegate Control Actuator Position Sensor Circuit High Voltage
General Description
The powertrain control module (PCM) adjusts the boost pressure by controlling the turbocharger wastegate control actuator of the turbocharger. Boost pressure becomes higher by fully closing the turbocharger wastegate control valve driven by the turbocharger wastegate control actuator. The turbocharger wastegate control valve position is detected by the turbocharger wastegate control actuator position sensor and the signal is input to the PCM for target position feedback control. The turbocharger wastegate control actuator position sensor value when the turbocharger wastegate control valve is fully closed is stored as fully closed learning value. Target and actual positions are represented by the relative value from the fully closed position. The PCM sets a target position, and outputs a drive signal to the driver IC and drives the turbocharger wastegate control actuator to be equal to the target position. If the turbocharger wastegate control actuator position sensor output voltage is out of normal range for a specified time, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 2 seconds or more |
| DTC Type | One drive cycle, MIL on |
Enable Conditions
| Condition | |
|---|---|
| Vehicle | ON mode |
Malfunction Threshold
DTC: P2564
The turbocharger wastegate control actuator position sensor output voltage [EWG Voltage From Lift Sensor] is 0.16 V or less for at least 2 seconds.
DTC: P2565
The turbocharger wastegate control actuator position sensor output voltage [EWG Voltage From Lift Sensor] is 4.87 V or more for at least 2 seconds.
[ ]: HDS Parameter
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.
DTC: P2564
- Turbocharger wastegate control actuator position sensor DCWGL line short to ground
- Turbocharger wastegate control actuator position sensor VCC2 line open
DTC: P2565
- Turbocharger wastegate control actuator position sensor DCWGL line open
- Turbocharger wastegate control actuator position sensor SG2 line open
Common
- Turbocharger wastegate control actuator position sensor 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.