The following happens while locking the doors with key or from inside with switch. After locking the doors the actuators continue to try and lock even though all of the buttons are down. It continues to do this for about a minute and then stops. Outside of this they operate normally. Relay? PowerLock controller?

 

Do you have an aftermarket alarm? Some thing is sticking did you spill soda all over? Just one door or all of them? What year car?

 

The year is stated above "97". No I didn't spill anything. And this is not something related to just one door.
Also, no aftermarket alarm has ever been installed.

Anxiously hoping for many to chime in

 

If its all your door locks doing this and not just one. I would blame the door lock control unit thy call it a multiplex. I have had a signal door lock actuator fail and make noise but its more of a buzz for about 5-10 seconds and the chances of all your door lock actuators failing at the same time is uncommon.

When you hit any of the lock or unlock buttons this sends a signal to the multiplex. The multiplex then sends power to all the door lock actuators for about 5 to 10 seconds.

 

I would agree but please allow me to explain. Not knowing the power lock system circuitry. Is it possible that just one actuator is sticking and causing the multiplex to keep sending power because the circuit is not completing or something along those lines. As far as the multiplex, this is located behind the drivers side door skin, or under the dash?

 

Possibly its all clock work.

Multiplex inputs are the door lock switches lock and unlock, door cylinder position switches lock or unlock, key in ignition switch, drivers door lock actuator inputs, door open switches and if you have it key less entry inputs. The only outputs are the door lock actuators.

If one think fails thy all fall. If you want to see what I see go to www.hondatech.info and see if you can find a etm for your car.

Some simple test you can do

For the door lock switches, Hit lock thy should lock hit unlock thy should unlock.
For the door cylinder position switches use your key on the out side, lock the doors thy should all lock. Unlock the door the first time it should just unlock that door the second time it should unlock all of them.
Key in ignition switch put you key in and open the drivers door it should chime at you.
Door open switches have your key on open all the doors see if you door open lights are all lit.
Key less entry hit un lock once the drivers door should un lock hit it again all door should un lock. Hit lock all the doors should lock.
For the drivers door lock actuator inputs you will need a volt meter and some free time.

Not as simple as you had hoped but with some time you should be able to get it. The multiplex is in you drivers door its a little box at the bottom.