Is P0245 different from P0243?

Yes. P0243 is a general solenoid malfunction. P0245 specifically reports a low-voltage condition on the circuit, pointing more directly to a short to ground or power supply problem.

Can P0245 go away on its own?

Unlikely. A wiring short or corroded connector does not self-repair. The code will return on every drive cycle until the circuit is fixed.

My car still drives. Is the solenoid actually broken?

The car likely entered limp mode, which limits boost to a safe fixed level. That is why it drives. The solenoid circuit still needs repair.

Codes › P0245

P0245: The wastegate solenoid circuit is reading abnormally low voltage

Turbocharger/Supercharger Wastegate Solenoid A Low

High severityCan you keep driving?

No, not safely. A stuck-low solenoid signal means boost control is compromised. Have the car towed rather than risk driving with uncontrolled boost.

What it means

P0245 is a more specific version of P0243. It means the PCM measured voltage on the wastegate solenoid circuit that is lower than expected, pointing to a short to ground or an open in the power supply side. The solenoid needs the correct voltage to modulate the wastegate properly. A low voltage reading usually means the power feed is broken or the solenoid is shorting internally. Without proper voltage, the solenoid cannot move the wastegate as commanded.

Common causes

Short to ground in the solenoid power or signal wireDamaged insulation near the turbo allows the wire to contact the engine block or chassis.
Failed solenoid with internal shortThe solenoid coil can short internally, pulling voltage low at the circuit.
Open in the solenoid supply fuse or relaySome turbocharged vehicles use a dedicated relay for boost solenoid power. Check fuses first.
Corroded connector pulling voltage downHigh resistance at the connector terminal creates a voltage drop that reads as a low-voltage fault.

What it costs

Fuse or relay replacement$10 to $50
Wiring repair$100 to $300
Boost control solenoid replacement$150 to $400 installed

Symptoms

Check engine light on
Limp mode or reduced boost
Possible no boost at all if the solenoid defaults open
Sluggish acceleration

What to do next

Check the solenoid circuit fuse first. Then measure voltage at the solenoid connector with the ignition on. If voltage is absent, trace the supply wire back to the fuse or PCM. If voltage is present but low, check for a partial short to ground in the harness. If the solenoid itself shows low resistance (less than 5 ohms on a 15 to 30 ohm solenoid), the coil is shorted internally.

Lewis logs boost pressure over the drive cycle so you can see whether this solenoid fault is causing a consistent underboost or erratic boost control. Download Lewis.

Related codes

FAQ

Is P0245 different from P0243?: Yes. P0243 is a general solenoid malfunction. P0245 specifically reports a low-voltage condition on the circuit, pointing more directly to a short to ground or power supply problem.
Can P0245 go away on its own?: Unlikely. A wiring short or corroded connector does not self-repair. The code will return on every drive cycle until the circuit is fixed.
My car still drives. Is the solenoid actually broken?: The car likely entered limp mode, which limits boost to a safe fixed level. That is why it drives. The solenoid circuit still needs repair.