BMW P1397: Camshaft Position Sensor Circ Malfunction
Is your scanner showing BMW P1397?
No worries. We'll show you what it means and how to deal with it.
BMW P1397: Camshaft Position Sensor Circ Malfunction
OVERVIEWWhat Does The BMW P1397 Code Mean?
Engine started, battery voltage must be at least 11.5v, all electrical components must be off, parking brake must be engaged (to keep daytime driving lights off), automatic transmission selector must be in park and the ground.
What Are The Potential Causes Of The BMW P1397 Code?
- CMP sensor circuit is open or shorted to ground
- CMP sensor circuit is shorted to power
- CMP sensor ground (return) circuit is open
- CMP sensor installation incorrect (Hall-effect type)
- CMP sensor is damaged or CMP sensor shielding 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
>>> CAM Camshaft Position Sensor Fits 12147518628 Compatible with BMW
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
BMW Fault Codes (DTCs), page 1.
