P048D OBD-II: Exhaust Pressure Control Valve Position Sensor/Switch Circuit Low
P048D Severity
Will P048D 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 P048D?
The Exhaust Pressure Control Valve controls exhaust back pressure during engine warmup. If the engine control module (PCM) determines there is an incorrect signal from the Exhaust Pressure Control Valve, the PCM will set code P048D.
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OBD II Fault Code
- OBD II P048D
OBD-II Code Powertrain Control Module (PCM) failure is defined as a Exhaust Pressure Control Valve Position Sensor/Switch Circuit Low
The Exhaust Pressure Control Valve controls exhaust back pressure during engine warmup. If the engine control module (PCM) determines there is an incorrect signal from the Exhaust Pressure Control Valve, the PCM will set code P048D.
Common Problems That Trigger the P048D Code
- Exhaust pressure control valve failure
- Powertrain Control Module (PCM) failure
- Wiring issue
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