Home >> Land Rover >> 2015 >> LR4 HSE, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Diagnostic Trouble Code Index V6 S/C 3.0L Petrol, DTC: Engine Control Module (ECM) -- LR4/L319 >> Diagnostic Trouble Code Index V6 S/C 3.0L Petrol, DTC: Engine Control Module (ECM) >> Description Of Operation >> DTC P252B-62: Engine Oil Quality Sensor Circuit Range/Performance - Signal compare failure >> Possible Causes