P71 question?? why does the dome light not come on when open door? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 12 (permalink) Old 03-28-14, 06:20 PM Thread Starter
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Question P71 question?? why does the dome light not come on when open door?

why does the dome light not come on when open door?

Is this something the P71 didn't come with.... the map lights work by their switches....

or do the police depts. disable the dome light coming on when the door opens, so they can sneak up on the bad guys??? is it something I can enable again.... or am I wasting my time?

bulb seems to be good.... what gives??


any help would be great

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post #2 of 12 (permalink) Old 03-28-14, 07:45 PM
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Re: P71 question?? why does the dome light not come on when open door?

Sounds like you might have a sticky\faulty door switch.

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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post #3 of 12 (permalink) Old 03-28-14, 09:44 PM Thread Starter
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Re: P71 question?? why does the dome light not come on when open door?

at all 4 doors??

but do I hear you telling me a P71 dome light should come on.. when you open a door????
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post #4 of 12 (permalink) Old 03-28-14, 10:24 PM
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Re: P71 question?? why does the dome light not come on when open door?

Most police do not want to be lit up in delicate situations.
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post #5 of 12 (permalink) Old 03-28-14, 11:46 PM Thread Starter
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Re: P71 question?? why does the dome light not come on when open door?

but is it a factory thing or do they disable something?
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post #6 of 12 (permalink) Old 03-29-14, 10:02 AM
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Re: P71 question?? why does the dome light not come on when open door?

None or our black and whites had operating dome lights. It's an officer safety issue.
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post #7 of 12 (permalink) Old 03-29-14, 11:06 AM Thread Starter
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Re: P71 question?? why does the dome light not come on when open door?

ok thanks... I discovered that the dimmer switch in the head light switch is bad so I gotta get one of them now dome light works when you move it all the way right and jiggle it.....but it sounds like the dome should not come on when a door is opened......
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post #8 of 12 (permalink) Old 03-30-14, 09:36 AM Thread Starter
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Re: P71 question?? why does the dome light not come on when open door?

Well I guess the dimmer portion of the headlight switch is just tired/worn...

replacement of the whole switch for a new one is $80 (Dorman or Wells)... not sure I want to mess with a "used one" as too many folks make replacements, tells me these switches break and wear a lot....

I removed the whole headlight switch and found I could remove the dimmer portion out of the whole assy... I was able to get it apart and clean up the contacts on the board and re lube it with dielectric grease, and with trial and error, rebent the spring contacts to take up the slack in the worn dimmer wheel... while it does not have a positive click to the right to get dome light on, I can dim dash lights and when you find the right position to the right the dome light will stay on now....

plus I have the big light PD installed above the rearview mirror

Now just gotta figure if the "NO dome" when door open thing is a factory thing or a PD disabled thing..... may just make my own switch for drivers door and hook it to the big PD dome light..

good thing I like tinkering with stuff... on to wiring up the scanner/radio, and getting the corner strobes to work.... see next thread...lol
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post #9 of 12 (permalink) Old 04-06-14, 08:39 AM
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Re: P71 question?? why does the dome light not come on when open door?

I know this still doesn't answer your question, but I was curious and asked the C/O at Motor Transportation Division (In charge of ordering hundreds of cars every year) about this subject. He said that large entities can order the cars from Ford with or without functioning dome lights (when the doors are opened), but most patrol cars are ordered with just the headlight /dash switch function. He didn't know how they were disabled by Ford, so the info was of no help to get them functioning again.
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post #10 of 12 (permalink) Old 04-07-14, 10:05 PM Thread Starter
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Re: P71 question?? why does the dome light not come on when open door?

I think I found how to make the dome lights come on with the door opening in the modification guide....

Use the following steps to disable the courtesy lamps:
Disconnect the battery.

Remove the instrument panel steering column cover.

Connect C2320 - located above the central junction box (CJB).

Connect the battery.

Use the following steps to enable the courtesy lamps:
Disconnect the battery.

Remove the instrument panel steering column cover.

Disconnect C2320 - located above the central junction box (CJB).

Connect the battery.

2005

http://www.digitalallyinc.com/downlo...ifierGuide.pdf

Last edited by Truckie256; 04-07-14 at 10:06 PM. Reason: link edit
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