Question about 2001 Dodge Ram 3500 Truck

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Lights go out

When switching from bright lights to dim, my lights will totally turn off, sometimes if I switch back to bright then to dim again, they will work. Sometimes if I wait a second or two they will come on by themselves.

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Dimmer switch is going bad. If you rapid fire the switch they will switch from bright to dim or dim to bright. replace the colum switch.

Posted on Feb 08, 2009

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Posted on Jan 02, 2017

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My headlights only turn on when they want. They are brand new as of late last year. PLEASE HELP!


These cars were designed to have daytime running lights, that can turn off with the ebrake being pulled, so perhaps whatever wiring mechanism that enable that, is failing.

Mar 21, 2017 | 1999 Oldsmobile Aurora

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I have a 2002 Buick Rendezvous and the radio and heater control backlights have shut off simultaneously and now only the vent control and trunk release lights work.


I would take a look see at the ground circuits for the none working lights . The incandescent back lighting lamps are then grounded at G200, G301 and G302. You would need factory service info for the location of the grounds .Like this from buick
G200
Right side of the I/P, secured on the underside of the cross car beam, behind the I/P compartment . The I/P compartment is the glove box ,don't know why they just don't say that . You could also check out the power and ground from the componet that's not working ! You can find factory like service info. from alldata
http://www.alldata.com/ . Check out some videos on youtube

https://www.youtube.com/watch?v=efKoWifdcag&t=224s

Interior Lamps Dimming
The second group includes lamps which may be dimmed. This group may use a combination of vacuum fluorescent (VF) illumination and of incandescent lamps.
• The door switches and the window switches
• The HVAC control head assembly
• The radio
• The instrument panel cluster (IPC)
• The steering wheel controls
• The heated seat switch
• The HUD switch
• The lift glass window release switch and traction control switch
When the ignition switch is turned to the ON position, the vacuum fluorescent (VF) displays (radio and HVAC control assembly), incandescent lamps, turn on at maximum brightness. When the park lamps are on and the ambient light sensor indicates low light conditions, all incandescent back lighting turn on at the dimming level indicated by the IP dimmer switch. At the same time all vacuum fluorescent (VF) displays dim to match the indicated dimming level. The BCM L fuse in the console fuse block, supplies battery positive voltage to the BCM. The I/P courtesy lamps supply voltage circuit of the BCM, supplies battery positive voltage to all the dimmable lamps. When the headlamp switch is placed in the PARK position, the BCM will then dim the interior lamps to the dimming level indicated by the IP dimmer switch. When the driver selects a dimming setting by moving, the IP dimming switch potentiometer, all incandescent back lighting lamps are provided with a specific voltage. The incandescent back lighting lamps are then grounded at G200, G301 and G302. When the IP dimmer switch is moved from MIN to MAX, all vacuum fluorescent (VF) displays, as well as all incandescent back lighting respond from Minimum intensity to maximum brightness in response to the IP dimmer switch.
The driver may select parade mode by manually turning on the park lamps during daylight conditions. The front park lamp circuit supplies voltage to the instrument panel cluster, radio and HVAC assembly for a park lamp on input, and the displays will become full bright.

Dec 03, 2016 | 2002 Buick Rendezvous

1 Answer

The dashboard illumination is dim and won't go bright also the Foglights will not turn on and also the stereo is dim. Changed the light switch but still the same


is it adjusted by the light switch left on bright right dim all when lights are on all dash lights will dim thats normal

Apr 19, 2016 | 2008 Volvo XC90

1 Answer

Which fuse is for the instrument panel back lighting?


Does the radio play ? Are any other back lighting components not lighting ? Does the HVAC control panel light up ? You probably need new radio !
The second interior lighting group includes lamps which may be dimmed. This group may use a combination of vacuum fluorescent (VF) illumination, LED illumination and incandescent lamps.
When the ignition switch is turned to the RUN position, the radio VF display turns ON at maximum brightness. When the park lamps are ON, all incandescent and LED back lighting turn ON at the dimming level indicated by the instrument panel (I/P) dimmer switch. At the same time all VF displays dim to match the indicated dimming level. The panel dimmer switch potentiometer is an input to the body control module (BCM). When the driver selects a dimming setting by moving the I/P dimming switch potentiometer, all incandescent back lighting lamps are provided with a specific voltage. When the I/P dimmer switch is moved from MIN to MAX, all VF displays, as well as all incandescent back lighting respond from minimum intensity to maximum brightness in response to the I/P dimmer switch.

Dose

Jul 14, 2015 | 2008 GMC Sierra 1500

2 Answers

Headlight wiring help.


check for a loose dirty earth point for the lights. wire not earthed to a pint that is connected back to the battery.

Dec 06, 2014 | Nissan Cars & Trucks

1 Answer

2002 Ford Focus SE. Low beams won't go on sometimes. Hi beams work no problem. Turn back to low, they stay on for a few seconds then turn off. Should I be looking at the headlight switch on the da


I would start at the headlight switch check your ground wires and connections at the light themselves also check the bright dim switch

Aug 27, 2012 | 2002 Ford Focus

2 Answers

When going from dim to bright or vise versa the headlights will sometimes go completely out. when you click the dimmer again the lights come back on


hey... im having this same problem... better get it fixed cuz just on New Years Eve, i no have NO dims, and only BRIGHTS now...

cant get it fixed yet, so its a pain in the a** to drive at night with just brights... BE CAREFUL!!

Dec 26, 2009 | 2004 Buick Century

1 Answer

Electrical problem???


Yup... electrical problem,,,, I'd start by checking body ground (only thing common to problems you listed) then, check sub-system power supplies for loose or corroded connections. Sometimes just unplugging and plugging back in is enough to get better contact, so pay attention to what you do and if something specific helps, take it apart again & clean it up better!

Dec 22, 2008 | 2004 Chevrolet Impala

1 Answer

Location of headlights brights and dims


the inner lights are the brights but some vehicles also use the bright lamps with low voltage as the daytime running lights

Dec 04, 2008 | 1996 Chevrolet Beretta

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