Home >> Land Rover >> 2021 >> Defender 90 X >> Repair and Diagnosis (Single Page) >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Near Field Sensing Module (NFSM) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: Near Field Sensing Module (NFSM) (G2807245) >> Description And Operation >> Near Field Sensing Module (NFSM) >> DTC B1443-29: Left Rear Side Proximity Sensor - Signal invalid >> Possible Causes