2000 Deville base model no start
 

The security light flashes when I try to start the car and there is no sound of a fuel pump and the starter doesn't even try to kick. I have disconnected the battery for fifteen minuites and tried again. I have also tried many combinations of unlocking and locking the doors to include activating the panic button on the key fob. It was fine when I parked it and now de-nada... please help I have work in a few hours...

it threw a bunch of codes faster than i could write them... pcm p0171 1860 0174 0335 0336 0340 0341... irc v1301 ipm b1004 ipc b1004

right now the problem u r having is the security light, first make sure battery is fully charged and the connection are good

after u do this try to start the car , turn to crank and let key go back to the position as if the car started leave it there for 10- 15 minutes the security light should stop flashing turn off vehicle and then try restarting it

Ty i will do this now

ok...
 

Battery was wrong size all together got a new battery and installed... no security light inappropriately but no start... have just started without starting the car and left KO for the 10-15 min you mentioned

it didn't work

clean all codes
so no security light
when u put key in does it go on then off

if the code b1004 does not leave then module is no good

phew
 

Ok today I went and got a new key cut... after the three key on key off cycles to program the car to the key, the dash display said "starter disabled" ???