P0248 Code - Turbocharger/Supercharger Wastegate Solenoid 'B' Range/Performance

What Does p0248 Mean?

In a turbocharged vehicle, the wastegate diverts exhaust by opening and closing to a certain degree and at certain times. This helps regulate maximum boost pressure, and offers a safeguard to protect the engine as well as the turbocharger itself.

P0248 indicates that the wastegate solenoid circuit has sent a signal to the PCM (powertrain control module) which is outside of the expected voltage, according to the manufacturer’s specifications. This signal tells the PCM that the solenoid is not controlling wastegate activity in the intended manner.

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What are the common causes of p0248 ?

• Faulty wastegate solenoid
• Wastegate solenoid harness is open or shorted
• Wastegate solenoid circuit poor electrical connection

How do you troubleshoot p0248 ?

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.

Process Tips

Diagnostic trouble code P0248 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P0248.

Fortunately, P0248 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

Searches related to P0248 Code - Turbocharger/Supercharger Wastegate Solenoid 'B' Range/Performance

• p0249
• p0250