Tech Tips (Access/Start Module Fault 00183 ?Interior Access/Start Authorization Antenna 1-R138? Diagnosis Tip): When diagnosing Access/start fault 00183, be aware that the fault can indicate a concern with either the R138 Interior Access/Start Authorization Antenna 1 or the R137 Luggage Compartment Access/Start Authorization Antenna. This document informs of the recommended normal Guided Fault Finding.