Question about 2001 Ford Mustang

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2001 mustang gt

Interior lamps will not turn off. All doors and trunk are closed

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Spin the light nob to the right it changes the brightness of the interior lights and if you have it all the way to the left it keeps them on when ever you have your lights on

Posted on Jul 30, 2008

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What color are the wires that go from door switch to dome lights on a 2005 mustang v6 conv.


The door switch doesn't go to the dome lights , the switch (door ajar switch ) is an input to the SMJ - smart junction box or body control module take your pick .
Principles of Operation
When the SJB detects a request for lighting, it turns on the interior lamps by supplying power to the lamps. The request for lighting can be an open door signal from a door ajar switch, an interior lighting on command from the instrument panel dimmer switch or an unlock command from a remote keyless entry (RKE) transmitter.
The door ajar switches are hard-wired directly to the SJB. The 2 door ajar switches are normally closed when the doors are closed. The decklid ajar switch is normally closed when the decklid is closed. All door ajar switches receive voltage from the SJB and each has its own ground circuit.
The instrument panel dimmer switch receives a ground signal from the SJB. The instrument panel dimmer switch provides variable resistance for backlighting the instrument cluster and a toggle ON/OFF function for the interior lights.
The RKE receiver is contained inside the SJB. When the SJB receives an unlock request from an RKE transmitter, it unlocks the doors and turns on the interior lamps. There could be DTC'S diagnostic trouble codes stored in the SJB ! You can not access these codes with a OBD2 code reader , need a factory scan tool .
B1319 Driver Door Ajar Circuit Failure Go To Pinpoint Test D . B1327 Passenger Door Ajar Circuit Failure Go To Pinpoint Test D . B2021 Dome Lamp Input Return Circuit Failure Go To Pinpoint Test A . B2550 Dome Lamp Output Circuit Short to Ground Go To Pinpoint Test A . B2554 Dome Lamp Output Circuit Failure Go To Pinpoint Test D . Do you know B-codes -body control .
Your best bet is to take to a ASE certified repair facility or a Ford dealer .

Jan 01, 2016 | 2005 Ford Mustang V6

1 Answer

Can't get dome lights on when door is opener even with override switch off?


The following lamps may be manually turned ON by placing the interior lamp switch in the ON position, or by opening a door while the switch is in the AUTO position.
?€¢
The dome lamp


?€¢
The liftgate lamps


?€¢
Courtesy/map lights

The courtesy lamp supply voltage circuit of the body control module (BCM) supplies battery positive voltage to the dome lamp, the liftgate lamps, and the map lamps. When any door is opened, the door jamb switch contacts close providing a door open input to the BCM. The BCM then provides a ground to the interior lamps with the switch in the AUTO position. The interior lamps receive a ground at G401 with the switch in the ON position.
Important: If the liftgate is opened after all the modules go to sleep, the dome light will not come on. The liftgate ajar switch input to the BCM will not wake up the BCM once it has gone to sleep, so the dome light will not come on. Once the BCM gets an input to wake it up, from remote keyless entry (RKE) or a door handle, the dome light will turn on when the liftgate is opened.
If the driver inadvertently leaves any interior lamp ON, the BCM will turn it OFF after a 20 minute time-out.
The courtesy lamps will turn OFF immediately if the ignition switch is turned to the ON position or approximately 20 seconds after all doors are closed.
The courtesy lamps are controlled by the body control module (BCM). Inputs from the dome lamp switch and the door ajar switches are monitored by the BCM. When a door ajar switch is closed, or the dome lamp switch is turned to the ON position, the BCM supplies the B+ for the courtesy lamps.
With out a factory Tech2 scan tool or equivalent an knowing how these systems work ,you best bet is to take your vehicle to the dealer or some other ASE certified repair shop !

Sep 04, 2015 | 2009 Buick Enclave

2 Answers

My sister has a 2000 chevy cavalier b4 the door chime and the interior dome light worked now they both dont, we replaced the bulb and fuse to no avail and I have no clue what's wrong with the chime.


the chime actually is done with the radio. the front drivers door speaker. so if the radio works and the front left speaker works. then more then likely you have a defective door switch. located in the door jam that controls the dome light

Apr 20, 2015 | 2000 Chevrolet Cavalier

1 Answer

How to change taillight on 2007 ford mustang gt convertible


Open trunk, pull back any trim & if you don't see
the lamp socket, you will see nuts to remove the
tail light housing from the body

Jul 08, 2012 | 2007 Ford Mustang GT California Special...

1 Answer

I need to know were the fuse is for the interior lights on mustang gt 2001


Interior lamps are powered through fuse # 7 and is a 15 amp fuse. It is located in the interior fuse panel. The lamps are gounded though ground # G400 which is located in the left rear cargo area.

Apr 08, 2011 | 2001 Ford Mustang

1 Answer

I HAVE A 2001 FORD MUSTANG GT THAT WON'T START, I ALREADY REPLACED THE FUEL PUMP AND FUEL PUMP DRIVER MODULE, IT HAVE SPARK AND CURRENT GOING TO THE FUEL PUMP BUT NOT GROUND OR PULSE TO THE INJECTORS


Before you go any further open the trunk and check the fuel pump roll over valve switch, mounted on the left side inside the trunk, push the switch down and try the vehicle.

Jun 05, 2010 | 2001 Ford Mustang

1 Answer

My problem is. when i turn my headlights on i get this constant ringing for at least three or four minutes... my car is a 2001 volkswagen jetta tdi.


The drivers door switch turns on/off the interior lamp BUT it is also used to signal the door open and closed position. So it is not getting a door closed signal either from the door proximity switch or I believe on VW a switch on the locks interior ! Therefore it thinks you have left your H/lights on and exited the vehicle ! Hope this get's you back on the road

Apr 11, 2010 | 2001 Volkswagen Jetta TDI

2 Answers

My 2001 mustang gt convertibles interior lights stay on all the time, even with the switch in the off position and doors closed other than pulling the fuse or light bulbs what should i look for first to...


only tow thing can cause the problem , roof lamp or any doors switch or lock, check first replace light, then disconnect all door lock wire one by one and try light is going off or not, if not then problem with electric control module.

Jan 26, 2010 | 2001 Ford Mustang

1 Answer

I have a 2001 ford taurus ses, and the interior light stays on for a long time, sometimes it won't even shut off, also on my dash board the light for the doors and trunk stays on all the time what can I do...


buy a can of PB BLASTER lubrecant at your local parts store and spray all your door latches and trunk latch really good with it, then open and close each door 10 to 15 times this should free up the door ajar switchs that are stuck

Feb 19, 2009 | 2001 Ford Taurus

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