BMW P1381: Control Module Self-Test, Knock Control Offset (Bank 1)
Is your scanner showing BMW P1381?
No worries. We'll show you what it means and how to deal with it.
BMW P1381: Control Module Self-Test, Knock Control Offset (Bank 1)
OVERVIEWWhat Does The BMW P1381 Code Mean?
Engine started, vehicle driven at 1520rpm for 10 seconds or to a temperature of 40 degrees Celsius, and the DME detected the Knock chip is defective.
What Are The Potential Causes Of The BMW P1381 Code?
- Knock sensor circuit is open
- Knock sensor is loose (tighten to 20 NM)
- Contact between the knock sensor and cylinder block is dirty, corroded or greasy
- Knock sensor circuit is shorted to ground, or shorted to power
- Knock sensor is damaged
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Bosch 0261231200 Original Equipment Engine Knock Sensor
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
BMW P1381, DTCDECODE.
