What the P0243 code means?
P0243 is a generic OBD-II code indicating that the Engine Control Module (ECM) detected the turbocharger
waste gate solenoid has an open or short circuit.
What causes the P0243 code?
Open in the control circuit (ground circuit) between the waste gate/boost pressure control solenoid A and
Open in the power supply circuit between the waste gate/boost pressure control solenoid A and the PCM
Short to ground in the power supply circuit to the waste gate/boost pressure control solenoid A
Waste gate/boost pressure control solenoid a faulty
What are the symptoms of the P0243 code?
Symptoms may include reduced engine acceleration, whining or rattling noises from the turbocharger or
turbo pipes, abnormal smoke from the exhaust, spark plug fouling, and excessive engine or transmission
temperature, hissing noises from the turbocharger waste gate and/or hoses, and an overall lack of engine
performance. Additional codes may include other turbocharger codes, engine misfire codes, or knock
sensor codes. Cylinder detonation is another possibility, due to high engine temperatures experienced when
boost pressure is excessive.
What repairs can fix the P0243 code?
Replacing a waste gate solenoid with an open circuit
Repairing or replacing a solenoid wiring connection with corrosion in the pins