3.8 , set months in a garage , battery dead and fob dead ! New fob batt and had no crank with service immobilizer ! New immobilizer and had locksmith program a new key . When he installed immob had no communication with pcm (I tried OBDII SCANNER AND HAD LINK ERROR) ! I have checked grounds and added a new batt gr . PCM has 2 12v hot pins . If I put an old key in it says bad key ! Hard to diagnose with no OBDII scan . I did a check of resistance on #2 pin on DLC and meter went all over the place , never a good read ! How the hell do I make progress without dealer help ? Is there a scanner that will read system with link error ! Seems that pcm has output on at least one connection with like 2.4 v ! Could there be 1 module that is grounded that would keep pcm from receiving fob signal ?