What Does P0245 Mean?
The turbocharger wastegate solenoid A control circuit is reading low voltage, indicating an electrical low condition. The ECM detects that the circuit voltage is below the expected threshold when the solenoid should be energized. This prevents proper boost control through the wastegate. The driver may notice underboost, surging, or limp mode activation.
Common Causes
30%
Wastegate solenoid A coil shorted to ground internally
30%
Short to ground in the solenoid control wiring
20%
Corroded connector causing low resistance path to ground
10%
ECM driver circuit fault pulling the line low
10%
Poor wiring insulation from heat exposure near the turbo
Diagnostic Steps
1
Disconnect the wastegate solenoid A connector and check if the code clears or the ECM reports an open circuit instead — this confirms the short is inside the solenoid rather than the wiring.
2
Measure solenoid coil resistance — typical is 10-40 ohms. A very low reading (near 0 ohms) indicates an internal short. Compare to specs in the service manual.
3
With the solenoid disconnected, check the control wire from the ECM for short to ground — measure resistance between the control wire and chassis ground. It should read OL (open). Any low reading indicates wiring damage.
4
Inspect the wiring harness near the turbocharger and exhaust manifold — extreme heat can melt insulation and cause shorts to ground against the engine block or mounting brackets.
5
Check for melted or damaged wire loom and heat shields around the turbo area. Repair or replace any damaged wiring with high-temperature wiring and proper heat protection.
Estimated Repair Cost
$80 - $450
Parts + labor, varies by vehicle and location
The turbocharger wastegate solenoid A control circuit is reading low voltage, indicating an electrical low condition. The ECM detects that the circuit voltage is below the expected threshold when the solenoid should be energized. This prevents proper boost control through the wastegate. The driver m...
The most common cause of P0245 (Turbocharger Wastegate Solenoid A Range/Performance) is: Wastegate solenoid A coil shorted to ground internally
Typical repair costs for P0245 range from $80 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The wastegate cannot be controlled properly, which may result in unregulated boost pressure. If the wastegate defaults to the open position, you will have underboost but can drive safely at reduced power. If it defaults closed, overboost is possible and you should not drive the vehicle.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0245 to identify the root cause.
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Quick Info
Category
Powertrain
System
Turbocharger / Supercharger System
Difficulty
Type
Generic (SAE)
Recommended Tools
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