P0248 is triggered when monitoring logic identifies an issue with Turbocharger Wastegate Solenoid B Range/Performance affecting air metering and throttle control.
P0248 Code: Meaning, Symptoms, Causes & Fix
Overview
Symptoms
- surging or unstable idle
- engine feels underpowered
- poor throttle response
Common causes
- Component out of calibration affecting turbocharger wastegate solenoid b range/performance
- Sensor drift or delayed actuation
- Connector pin damage/corrosion or harness stress near related components
How to diagnose P0248
- Confirm P0248 and capture freeze-frame data with a professional scan tool.
- Inspect wiring, connectors, and grounds related to turbocharger wastegate solenoid b range/performance for obvious defects.
- Compare commanded vs actual values in live data under the same operating condition.
- Check for related DTCs to identify the root-cause chain before replacing parts.
- After repair, clear codes and confirm readiness monitors complete without recurrence.
Severity of code P0248
Moderate: This code is moderate severity: the vehicle may still operate, but fault progression can increase repair cost over time.
Can you drive with P0248?
Most vehicles can be driven short-term with P0248, but postpone heavy load/highway driving until repaired.
If the warning lamp is flashing or drivability/safety is affected, avoid driving and diagnose immediately.
How to fix it (step-by-step)
- Repair obvious wiring/connector faults first to prevent repeat parts replacement.
- Address the root fault mode (performance) in the turbocharger wastegate solenoid b range/performance circuit/system.
- Apply the required relearn/adaptation procedure if specified by service information.
- Road-test and verify P0248 remains cleared under the conditions that originally set the code.
Fix options
- Clean/repair mechanical restriction where applicable.
- Replace out-of-range component and verify live data.
- Clear DTCs and verify with live data and completed drive cycle.
Typical repair cost
$180-$900
Common mistakes when diagnosing P0248
- Replacing parts without verifying voltage, ground, and signal integrity first.
- Ignoring related stored/pending codes that indicate upstream faults.
- Skipping post-repair verification drive cycle and readiness checks.
P0248 in common vehicles
P0248 appears across makes such as Mazda, Subaru, Lexus, Jeep. Failure patterns differ by platform: wiring routes, software calibration, and component supplier revisions can change root cause.
Frequently asked questions
What causes P0248?
P0248 is commonly set by performance faults affecting turbocharger wastegate solenoid b range/performance.
How much does it cost to fix P0248?
For P0248, repair costs are typically $180-$900 depending on exact root cause, labor rates, and part quality.
Can I clear P0248 without repair?
You can clear P0248 temporarily, but the code usually returns until the underlying fault is corrected.