P051A OBD-II: Crankcase Pressure Sensor Circuit

P051A Severity

Urgent

Should you fix P051A yourself?

Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.

Proper diagnosis will save you time and money on unnecessary repairs.

Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.

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P051A Summary Find a Repair Shop P051A Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P051A?

The Crankcase Pressure Sensor tells the engine control module (PCM) how much pressure is building up inside the engine. If the PCM detects an incorrect signal from the Crankcase Pressure Sensor, the PCM will set code P051A.

OBD II Fault Code

OBD II P051A

OBD-II Code Oil leaking from the engine is defined as a Crankcase Pressure Sensor Circuit

Oil leaking from the engine Symptoms

Oil leaking from the engine

Common Problems That Trigger the P051A Code

Crankcase pressure sensor failure
Powertrain Control Module (PCM) failure
Wiring issue

OBD Code Resources

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OBD II Fault Code

OBD II P051A

OBD-II Code Oil leaking from the engine is defined as a Crankcase Pressure Sensor Circuit

Oil leaking from the engine Symptoms

Oil leaking from the engine

Common Problems That Trigger the P051A Code

Crankcase pressure sensor failure
Powertrain Control Module (PCM) failure
Wiring issue

P051A OBD-II: Crankcase Pressure Sensor Circuit

Should you fix P051A yourself?

What causes OBD-II fault code P051A?

Need a P051A diagnosis? Trust our experts.

OBD II Fault Code

Oil leaking from the engine Symptoms

Common Problems That Trigger the P051A Code

OBD Code Resources

Need a P051A diagnosis? Trust our experts.

Ask our experts about P051A.

Other OBD-II Codes

OBD II Fault Code

Oil leaking from the engine Symptoms

Common Problems That Trigger the P051A Code