OBD-II trouble code
P0250: Turbocharger/Supercharger Wastegate Solenoid "B" High
SAE J2012 APR2002: wastegate solenoid B high. The readable circuit-high row in the 2011 GM sheet is P0246, letter A. The printed pair is RepairPal's boost-pressure solenoid, scoped to solenoid B. Wiring is outside it.
Quick facts
- System
- Powertrain
- Category
- Fuel & Air
- Severity
- Medium severity
- Drivable
- Usually safe to drive short-term
- Repair cost range
- $206 – $241 (turbocharger boost-pressure solenoid B replacement, parts and labor, RepairPal national average updated 3 September 2026; a short to power in the wiring is outside this pair)
- DIY difficulty
- Intermediate DIY
Browse every code in P0200–P0299, or start from the full code library.
What does P0250 mean?
SAE J2012 APR2002 names P0250 Turbo/Super Charger Wastegate Solenoid "B" High. Circuit high is measured with the solenoid connected. P0249 is the low row for the same letter. P0246 is solenoid A's high row, and that is the code on the readable 2011 GM 11OBDGS2 line: device driver detects circuit high, engine running, continuous, two driving cycles. That line is not marked B. Transferring it onto P0250 tests the wrong driver if the car actually has two.
Nothing in that row says a corroded ground sets circuit high. The same absence applies here: do not add a ground repair as the B-high cause without the VIN chart. A short to power is checked with solenoid B unplugged and the module unplugged, ignition off, on the terminal the diagram switches. Voltage on an unplugged pin while the module is still connected can be the driver's own bias. It is not the short-to-power result.
The Ford tip's energized pneumatic solenoid, the one that passes no pressure, is a plumbing description. It does not define P0250, and it does not name a second solenoid. RepairPal's turbocharger boost pressure solenoid replacement, updated 3 September 2026, is $206–$241 (labor $75–$111, parts around $130). The printed pair is that national average, scoped to solenoid B because SAE J2012 names this code solenoid B high. The listing is not split into B. A short to power in the harness is outside the pair. Diagnosis is $125–$183 labor and is separate.
Common causes
- An above-range reading on the B control circuit with the coil connected
- A short to power on the switched terminal the diagram names for solenoid B
- Voltage on the B control wire in the state the chart says should be low
Symptoms
- P0250 stored
- The high result present with solenoid B connected
- The B control reading above its normal range
Diagnostic steps
- 1.Separate P0250 from P0246 before a connector is chosen. The readable GM high row carries the A number.
- 2.Diagram first: which pin of solenoid B is the switched pin, and is it the ground leg or the feed.
- 3.Ignition off. Disconnect solenoid B and disconnect the module. Check that pin for a short to power. Check continuity of the same wire as a different measurement. Do not let the first voltage you see, module still plugged in, end the test.
- 4.Do not add a ground repair from this page. The sources read for the A high row did not claim it, and no B row was found that claims it either.
- 5.Coil resistance is connector off, ignition off, and it does not see a harness short to power.
- 6.The printed pair is RepairPal's solenoid average, scoped to solenoid B. A short-to-power wiring repair is outside it. The listing itself is not labeled B.
- 7.Verify with solenoid B connected. If the monitor needs the engine running, stay clear of the belt and the fan.
Repair cost
$206 – $241 (turbocharger boost-pressure solenoid B replacement, parts and labor, RepairPal national average updated 3 September 2026; a short to power in the wiring is outside this pair)
RepairPal's turbocharger boost pressure solenoid replacement, updated 3 September 2026, is $206–$241 (labor $75–$111, parts around $130). The printed pair is that national average, scoped to solenoid B because SAE J2012 APR2002 names P0250 Turbo/Super Charger Wastegate Solenoid "B" High. Section 3.8 leaves the letter to the manufacturer. RepairPal's estimator does not label A or B. The readable 2011 GM 11OBDGS2 circuit-high row is P0246, not this code. A short to power in the harness is outside the pair. Diagnosis is $125–$183 labor and is separate.
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DIY vs shop
This is an intermediate DIY job. It usually involves diagnostic steps, specialty parts, and some careful work in tight spaces. If you have the tools and a service manual or trustworthy video for your specific vehicle, it is achievable in a weekend. Otherwise, a competent independent shop will be faster.