all idiot lights come on immeadiately upon start ..blinking on and off constantly
It sounds like a loose battery connection, check the ground wires clean, tight no corroded connections. Battery 12.6 volts and been load tested... not more than 60 months old. NEXT, alternator output 13.4-14.8 volts at the battery when the engines running? IF that's not It can be a bad dash ground, relay, flasher, short, bad ign. switch, even the neutral safety switch. Regards
You may also want to check for proper communication between the computers, common for Dodge products too loose Buss connection.
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