Security light on, VIN not present!

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dm1992
Posts: 5
Joined: Fri May 07, 2021 5:10 pm

Security light on, VIN not present!

Post by dm1992 »

I bought my caprice back in February of this year and have been working on it until today when I thought it was ready to start up. However, when I went to start it up it get nothing, no clicks, no power to anything. The security light is on, and if you turn the radio on it will say VIN not present. The ECM was recently flashed to tune out the DOD/AFM. What do I do?
s/c'd cav
Posts: 1382
Joined: Mon May 30, 2016 3:12 am
Location: PHOENIX AZ

Re: Security light on, VIN not present!

Post by s/c'd cav »

radio saying VIN not present should not stop the car from powering up

you will need to connect a scanner and read any codes , provided the scanner will connect to the pcm , best suggestion if to go back through everything that you have done and double and triple check everything
dm1992
Posts: 5
Joined: Fri May 07, 2021 5:10 pm

Re: Security light on, VIN not present!

Post by dm1992 »

I attempted to connect my scanner but it fails to connect. Not sure what I am missing.
s/c'd cav
Posts: 1382
Joined: Mon May 30, 2016 3:12 am
Location: PHOENIX AZ

Re: Security light on, VIN not present!

Post by s/c'd cav »

might want to look at the IGN switch , since the dash doesnt light up and the scanner wont connect

the radio will turn on either way
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