What Does P1244 Mean?
DTC P1244 indicates the wastegate control solenoid valve circuit is reading low input voltage or has an electrical short to ground. The solenoid that regulates boost pressure by controlling the turbocharger wastegate is not receiving proper electrical signals. This prevents proper boost control and typically results in either over-boost or under-boost conditions depending on the wastegate default position.
Safety Warning
Loss of wastegate control can result in either over-boost (risking engine damage from excessive cylinder pressure) or under-boost (significant power loss). Over-boost conditions are particularly dangerous and can cause catastrophic engine failure.
Common Causes
30%
Wastegate control solenoid with shorted coil winding
25%
Wiring short to ground in the solenoid control circuit
20%
Corroded solenoid connector due to under-hood heat and moisture exposure
15%
PCM solenoid driver circuit damage from overcurrent
10%
Damaged wiring harness near the turbocharger due to extreme heat
Diagnostic Steps
1
Disconnect the wastegate control solenoid and measure coil resistance — compare to manufacturer specification (typically 10-40 ohms). Very low resistance indicates a shorted coil.
2
With the solenoid disconnected, check for continuity between each solenoid harness wire and ground — neither wire should show continuity to ground.
3
Inspect the solenoid and its wiring for heat damage, as the proximity to the turbocharger subjects components to extreme temperatures.
4
Verify PCM output by measuring voltage at the solenoid connector with ignition on — the PCM should supply battery voltage or a modulated signal.
5
Check the solenoid connector for melted plastic, corroded terminals, or backed-out pins due to thermal cycling.
Estimated Repair Cost
$100 - $500
Parts + labor, varies by vehicle and location
DTC P1244 indicates the wastegate control solenoid valve circuit is reading low input voltage or has an electrical short to ground. The solenoid that regulates boost pressure by controlling the turbocharger wastegate is not receiving proper electrical signals. This prevents proper boost control and ...
The most common cause of P1244 (Wastegate control solenoid valve malfunction (low input)) is: Wastegate control solenoid with shorted coil winding
Typical repair costs for P1244 range from $100 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Loss of wastegate control can result in either over-boost (risking engine damage from excessive cylinder pressure) or under-boost (significant power loss). Over-boost conditions are particularly dangerous and can cause catastrophic engine failure.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1244 to identify the root cause.
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Quick Info
Category
Powertrain
System
Turbocharger / Boost Control
Difficulty
Type
Manufacturer
Recommended Tools
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