P2C34

Crankcase Pressure Sensor B Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine Light Is On
Unstable engine idling
Increased oil consumption
Reduced engine power
Burning smell in the cabin

Causes

Faulty crankcase pressure sensor
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Problems with the engine control unit

How to Fix

Check the integrity of the sensor circuit
Inspect the connectors and contacts of the sensor
Check the functionality of the crankcase pressure sensor
Replace sensor if necessary
Check and clean the crankcase ventilation system

Related codes

P2C33 P2C35 P0522