2004 crossfire, 115k miles auto , so came out tryed to start car , not cranking , have dash lights , fan spinning very fast after 20 sec , no radio , fob not working , searched forum, ..points to the rcm...brother has crossfire also .1)..removed his and tryed in my car , no change ,
2) checked battery voltage.... 12.6 volts ,
3) eliminated a bad ground by using jumper cable from negative battery terminal, to alternator bolt on engine ....no change .
4) checked all fuses ....all good .
5) disconnected battery for 10 mins ...and put neg and positive together....then reconnected ....no change
l do not have a code reader so don't know if any codes .
Its not cranking so its not the tps, symptoms not pointing to the SCREEM module
So what do l need to check next ? Need to get this thing running asap ... give me your input please .