ok lovin the car but a few probs the rear boot does not lock with the central locking,i put a battery on the solenoid and it locks i metered the wire going to lock it pulses when i lock the car but only 10.5 volts any ideas all other doors lock ok.....the rear reverse lights dont work prob be sensor but how do i change it....and when i select low gear the low light does not come on on dash is their a sensor for this and how do i swap,many thanks for anyone that can help.