02 SS - When this event happens, Camaro is dark as in nothing on - key in ign and IGN selected. Go to START, nothing still.
Cleaned battery posts, Camaro works fine for the next three starts and runs great, alt is working.
Then fourth time to START, dark, nothing, no ding with key in ign sw and door open, no dome light.
Clean posts, works again, started and ran great for each start per day. Third day/start, dead/dark.
All connections topside of engine compartment are tight, power cable to relay box, including grounds on fender wells.
BTW, battery is 1.5 years old. Have cig lighter voltmeter plugged in and shows 0 volts with key off.
Clean posts, works great.
Just thought I'd get some suggestions before looking. I'm sure its something simple.
I have smeared engine oil on posts/terminals hopefully preventing corrosion. then wiped it off and still happens.
When it starts and runs, runs great, voltmeter shows 14.5 volts. TIA