Advanced Diagnostics

DTC P0243: Turbocharger Wastegate Control Solenoid Valve Circuit Malfunction




General Description
The turbocharger boost control solenoid valve connected between the positive pressure piping and the turbocharger boost control actuator of the turbocharger.

The powertrain control module (PCM) adjust the positive pressure applied to the turbocharger boost control actuator with the turbocharger wastegate control solenoid valve and bypasses discharge pressure to the discharge piping. As a result, the rotation of the compressor becomes variable to control the boost pressure to the intake manifold.

When the return signal does not change as set by the output of the turbocharger boost control solenoid valve, and this condition continues for a set time or more, a malfunction is detected and a DTC is stored.




Monitor Execution Sequence, Duration, DTC Type, OBD Status




Enable Conditions

Malfunction Threshold
When the return signal does not change as set by the output of the turbocharger wastegate control solenoid valve and this condition continues at least 2 seconds. When duty is between 98 % and 2 % and there is no return signal for 2 seconds or more continuously.

Diagnosis Details

Conditions for illuminating the MIL
When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

Conditions for clearing the MIL
The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.