When I use DIS 44 the model is not available nor on INPA, it appears on DIS 57 and DIS 57.2 but has the following message " E71 message 01, no voltage is applied at terminal 15 or U-batt is less than 9 volt. Automatic vehicle identification is terminated." The voltage is fine as I have had a battery charger on and even tried it with the engine running with 15.3 volts. Any ideas someone?