P0250 OBD-II Trouble Code: Turbocharger Wastegate Solenoid B Circuit High

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0250 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0250 code

P0250 is a diagnostic trouble code (DTC) for "Turbocharger Wastegate Solenoid B Circuit High". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0250 DIAGNOSTIC Get a fair and transparent estimate upfront

P0250 code definition

Turbocharger Wastegate Solenoid B Circuit High

What the P0250 code means

P0250 is an OBD-II generic code that the engine control module (ECM) detected the Turbocharger Wastegate Solenoid B input circuit high above specifications indicating a short to power in the solenoid or wiring.

What causes the P0250 code?

  • The turbocharger wastegate solenoid is shorted to power causing a high voltage low resistance on the solenoid circuit to the ECM.

  • The wastegate solenoid ground side has a short to power on the control side causing the ECM to have a high voltage on the control circuit of the solenoid.

  • The solenoid connector has a corrosion buildup or a broken connector shorting power to the signal return in the circuit.

What are the symptoms of the P0250 code?

  • The Check Engine Light will be illuminated and the code is set in ECM memory.

  • The engine turbo boost will not work at all causing low power.

  • Depending on the vehicle, the short may blow fuses that supply power to other components and can cause those circuits to fail and set codes.

  • The engine will intermittently lack power during acceleration if the solenoid has an intermittent shorted circuit or connector.

How does a mechanic diagnose the P0250 code?

  • Scans codes and documents the freeze frame data in order to verify the problem

  • Clears the engine and ETC codes to verify concern and that the code comes back

  • Checks the operation of the wastegate solenoid to see if it is capable of controlling vacuum to the wastegate

  • Checks for any corrosion in the solenoid connection that may cause intermittent solenoid control issues

  • Checks the solenoid to the wastegate for the proper resistance to specifications or pinpoint tests for shorted windings

  • Checks the solenoid wiring for shorted harnesses or melted connectors

  • Verifies all power supply fuses for the circuit are not blown

Common mistakes when diagnosing the P0250 code?

  • Failing to verify the code and problem before attempting to diagnose the code
  • Failing to verify the harness is not shorted or melted on the exhaust or turbo
  • Failing to clear the codes and retest the system for any problems after repairs are made

How serious is the P0250 code?

If the wastegate solenoid cannot operate the wastegate, then you will have a no boost condition in the intake manifold when the engine needs the power, and this will cause the engine to have a lack of power on acceleration. If the short has blown power supply fuses, then other systems may use the same power supply circuit and will have problems in their systems.

What repairs can fix the P0250 code?

  • The wastegate solenoid B is replaced for a shorted winding internally

  • The wiring connections to the solenoid are cleaned or replaced due to corrosion and shorts in the connections

  • The wiring harness is repaired and repositioned for shorted or melted wires

  • Power supply fuses are replaced after the short is found and repaired

Additional comments for consideration regarding the P0250 code

Code P0250 is triggered by the ECM detecting the solenoid circuit has a low resistance or shorted windings in the solenoid causing the solenoid to not operate. The most common cause is the solenoid having low resistance or shorted windings internally. The solenoid may have been damaged by an exhaust leaking or a harness that came loose and melted to the manifold.

Need help with a P0250 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
P0250
Check Engine Light

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0250 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

4,743

Rating Summary
4,361
185
47
28
122
4,361
185
47
28
122

Oreste

12 years of experience
108 reviews
Oreste
12 years of experience
Nissan Altima - Check Engine Light is on - Hialeah, Florida
Showed up quick, and went straight to inspecting a brake light on the dash issue. He found the issue, fixed it, and showed me exactly what was wrong. Thank you!

Daniel

9 years of experience
58 reviews
Daniel
9 years of experience
Honda Fit - Check Engine Light is on - Chicago, Illinois
Told me everything I needed to know and switch out after the inspection. So, I scheduled another service the next day for all the fixes, or fluid maintenance.

Patrick

31 years of experience
1032 reviews
Patrick
31 years of experience
Hyundai Santa Fe - Check Engine Light is on - Austin, Texas
Even after working on my car, he took the time to explain what he did, the parts, and any next steps. Very knowledgeable!

Joe

12 years of experience
22 reviews
Joe
12 years of experience
Toyota 4Runner - Check Engine Light is on - Sacramento, California
Joe was very thorough in his inspections, and his knowledge & experience was clear in his explanations of what was wrong with my car. I really appreciated his recommendations, and the fact that he worked so efficiently that it cut down on time... I would definitely book with him again.

More related articles

Veteran and Military Driver Laws and Benefits in Idaho
The The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the past, or are current active military members. Vehicle registration benefits Disabled veterans with a...
How to Avoid Back Pain in a Car
If If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from sitting in a car’s seat for a long drive. Sometimes,...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance Related Trouble Codes: P2158: Vehicle Speed Sensor B...

Related questions

A.I.R. pump is missing in my car

Hello. The A.I.R. system is an emissions system that is designed to inject air into the exhaust manifold to help with the combustion of any unburned fuel before it reaches the catalytic converter, resulting in cleaner emissions. In order to...

Engine idling and check engine light on

Carbon build-up on the intake valves is a common issue on the IS250. Lexus recommends to remove the valves and clean them while other manufacturers use anything from an intake cleaning solvent to sandblasting using walnut shells to remove the...

Car won't start

There are many reasons as to why the car may no start, some of which may be related to various sensors. The most efficient way to approach something like this is often times to have the car's computer scanned using...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com