P0048 OBD-II: Turbocharger/Supercharger Boost Control "A" Circuit High
P0048 Severity
Will P0048 go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P0048?
The engine computer (PCM) uses a Vane Control Solenoid (also referred to as a boost control solenoid) to control the amount of boost from the Turbocharger. If the Vane Control Solenoid does not operate as commanded, code P0048 will set.
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OBD II Fault Code
- OBD II P0048
OBD-II Code Powertrain Control Module (PCM) failure is defined as a Turbocharger/Supercharger Boost Control "A" Circuit High
The engine computer (PCM) uses a Vane Control Solenoid (also referred to as a boost control solenoid) to control the amount of boost from the Turbocharger. If the Vane Control Solenoid does not operate as commanded, code P0048 will set.
Powertrain Control Module (PCM) failure Symptoms
- Lack of boost from the turbo/supercharger
Common Problems That Trigger the P0048 Code
- Powertrain Control Module (PCM) failure
- Turbocharger vane control solenoid failure
- Wiring issue
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