security light on

1996 CHEVROLET CAVALIER
15,100 MILES • 4 CYL • FWD • AUTOMATIC
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ELBERT PERKEY
  • MEMBER
  • 2 POSTS
installed salvage yard pcm---- now engine starts and dies. security light flashes.
salvage yard says needs to be programed by GM
dealer. cost 100. or more . is he right.
Dec 15, 2009 at 1:32 PM
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BMRFIXIT
  • ✓Experienced Mechanic
  • 19,053 POSTS
Try this 1st if it doesn’t work have to go to GM to program it
make sure have battery fully charge as it will take about 20 min or so
try to start engine
engine will start for sec and fail
leave key in on position for about 11 min or until security light stop blinking
turn key off wait 10 sec and try again
same thing wait 11 min or until security light stop flashing
key off 10 sec and try again
security light off key of 10 sec it should start
Dec 15, 2009 at 10:13 PM
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