OBD-II Generic Error Code P0385: How to Fix It

Q: Can I drive with a P0385 code?

It is not recommended. The engine may run poorly or stall, leading to unsafe driving conditions. Have the issue diagnosed and repaired as soon as possible.

Q: What causes error code P0385?

Common causes include a faulty crankshaft position sensor, damaged wiring or connectors, incorrect sensor gap, or a defective ECU. Sometimes debris or oil contamination on the sensor can trigger the code.

Q: How much does it cost to fix P0385?

If you DIY, a new sensor costs $30-$100. If a mechanic does it, labor adds $100-$200, totaling $130-$300 or more depending on vehicle accessibility.

Q: Where is the crankshaft position sensor located?

It is usually mounted near the crankshaft pulley, flywheel, or behind the timing cover. Consult your vehicle's service manual for exact location.

Q: Will a bad crankshaft sensor cause no start?

Yes, if the ECU does not receive a crankshaft position signal, it cannot determine ignition timing or fuel injection, resulting in a no-start condition.

Abstract

Error code P0385 indicates a malfunction in the crankshaft position sensor B circuit. The crankshaft position sensor monitors the position and rotational speed of the crankshaft, which is essential for engine timing and fuel injection. When this code appears, the engine may run poorly, stall, or fail to start.