UKPassats

Hi all , I hope someone can help me I have a 2008 1.9tdi with a parking brake warning message on the dash . it did have a code stored in the PB ECU for the clutch switch ( new one was fitted prior to me buying )after pushing the connector onto the switch firmly this has now cleared. Though the fault has not gone with a code stored in the engine ECU 050199 Implusaible data received from the parking brake control unit.
Hopefully some can steer me in the right direction. Thank you