Code : P13C7
Make : BMW
Description : P13C7 BMW Knock Sensor 2 Electrical Signal Input B Short Circuit To Ground
Possible causes :
– Faulty Knock Sensor
– Knock Sensor harness is open or shorted
– Knock Sensor circuit poor electrical connection
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.