BMW P1385: Knock Sensor 4 Circuit Malfunction
Is your scanner showing BMW P1385?
No worries. We'll show you what it means and how to deal with it.
BMW P1385: Knock Sensor 4 Circuit Malfunction
OVERVIEWWhat Does The BMW P1385 Code Mean?
Engine started, vehicle driven at 1520rpm for 3 seconds or to a temperature of 40 degrees Celsius, and the DME detected the Knock Sensor 1 (KS1) signal was not recognized. The engine speed is greater than 2080rpm but less than 6000rpm and the coolant temp.
What Are The Potential Causes Of The BMW P1385 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:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Bosch 0261231200 Original Equipment Engine Knock Sensor
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
BMW P1385, DTCDECODE.
