Home >> Land Rover >> 2021 >> Range Rover SVAutobiography Dynamic Blk. >> Repair and Diagnosis >> Quick Lookups >> Common Specs & Procedures >> Diagnostic Trouble Code Index DTC: Side Obstacle Detection Control Module - Left/Right (SODL/SODR) -- Range Rover/L405 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Side Obstacle Detection Control Module - Left/Right (SODL/SODR) (G2268899) >> DTC U1A00-31: Private Communication Network - No Signal >> Possible Causes