The ac light and beeper stays on - Stanley 77 115 Intellisensor Plus Stud Sensor

replace the beeper that makes the sound when you are in reverse.the light will also go out after you replace thet beeper.

It can be issue with faulty sensor or a wiring issue.Troubleshooting is required.
Click the help link shown below:---
Door Ajar Light and Dome Light Remains ON? http://whoisbyme.blogspot.in/2012/06/2003-mercury-sable-door-ajar-light-and.html
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Door ajar light stays on? http://technoanswers.blogspot.com/2012/01/door-ajar-light-stays-on.html

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Thanks.

There should be a switch in the door opening usually on the front pillar between the hinges or at the bottom where the door meets the body at the back,that controls the interior light and possibly the beeper, If it has gotten out of adjustment, or is broken for some reason could cause your beeper to keep going. Check to see if your interior light is staying on as well.

cant be done.

this spin light that is on is a fault code no:1 which means the electronic motor control has a memory problem solution replace motor control module ... hope this helps..:0)

Check the battery power at the unit with a DC volt meter, and also use the meter's AC setting across the power post on unit. If AC volts are above a tenth of a volt, the wires to battery may be to small, not allowing enough current to drive the transducer and electronics in unit.

Don't worry I'm sure you will get the solution of your problem, just check the link I attached
2006 Ford Freestyle

I suppose you mean beeper does not go "on" when head lights are "on" and you open drivers door.In this case beeper's door switch may be dirty. Check also for any loose wire connection or faulty beeper relay.

More than likely it needs a new beeper. When the beeper fails the light on the sonar button will stay illuminated and the system obviously won't make any sound.

is there any light on the dash with this bbeeper?