EAS diagnostic troubles

[petergalileo]

Plugged our diagnostic onto a friends P38, they have 2 fault codes comming up as FL Sensor reading incorrect and FR sensor reading incorrect.  I changed both front level sensors and cleared the codes, I have also recalibrated the motor back to its factory defauts, but the fault codes still remain and the ECU is in hard fault mode (35mph max).

Any ideas ? Just cant get the thing off its bump stops.

Diagnostic is an autodiagnos unit.

Thanks

[Range Rover Blues]

Could be a wiring fault but I'm not familiar with the autologic system.  Is it the correct one for that car, if not the fault code could actually mean something else