Thanks for all your replies. I was using eobd v3 update and can cable 30214100 did nt get comms. I also tried map with 30214600 again with no comms.I m sure the srs passenger warning was nt on prior to my efforts. Rang Sykes this morning they seemed to think it unlikely that the acr could cause this fault but want to know the outcome just in case its a software issue that they need to correct. They also said that the eobd probably would nt cover this model.?...........regards Mike