www.mymopar.com will have wiring diagrams. the can is either the turn signal or the hazards "flasher". You might seperate the lower end of the harness that connects up to the dash & jump 12V to the appropriate terminal & see if the lights light up & either work upstream or downstream from there, kinda generic but that'd be a start.

live every 24 hour block of time like it's your last day on earth