Reset anti-theft password

Resetting a Vehicle Anti-Theft System
This is how you reset an anti theft system if you have the anti-theft light on, or your car is cranking, but you have no spark.

Doing a full reset of the anti-theft system.

Disconnect both battery leads for at least two hours.
Hold the negative and positive leads together for 5 minutes to fully discharge any power.
Put the key in the ignition, but not turned on. VERY IMPORTANT!
Connect the positive lead.
Connect the negative lead in one swift movement.
Wait 15 minutes for the system to fully reset.

https://www.fixya.com/cars/r26859529-resetting_vehicle_anti_theft_system

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Look too see if harness is pluged in or all the way in sounds like park and neutral safety switch not pluged in

Disconnect the battery for one hour then hook it up again. This might do it.

Instructions on how to do this should be in the owner's manual.

Default Anti-theft Password is "0000"
From the owner's manual:
"
In
the event you ever
loose or forget your
password, call our tech
hot line for support
on how to unlock your
system."

Dual Electronics Corp.
Toll Free: 1-866-382 -5476
www.dualav.com

Owner's manual at:
http://www.dualav.com/i/product/manual/xdvd8183.pdf