Question about Dodge Ram 3500

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The lighting on the overhead computer and the radio are to dim to see in full sunlight. They do adjust dimmer with the head lights on. How do I adjust the illumination level?

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Well I am very sorry to inform you that , THATS ALL YOU GET..... I know , sucks , just on of those design flaws...

Posted on Jul 28, 2009

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Posted on Jan 02, 2017

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How do i bim and brighten dash light 2002 buick lesabre


bim or DIM ? the dimmer switch ! Interior Lamps
The interior lamps consists of two groups, lamps that can not be dimmed and lamps that can be dimmed. This first group consists of lamps that may not be dimmed. This includes those lamps that may be manually turned on by placing the interior lamp switch to the DOME position, or by opening a door or a compartment:
• Door courtesy lamps
• Footwell courtesy lamps
• Instrument panel (I/P) compartment lamp
• Overhead console courtesy lamps
• Reading courtesy lamps
• Rear compartment courtesy lamp
• Roof rail courtesy lamps
• Sunshade vanity mirror lamps

Interior Lamps Dimming
This group of interior lighting includes lamps which may be dimmed. This group uses a combination of class 2 controlled illumination and incandescent lamps:
• Air temperature switch
• Cigar lighter lamp
• Door switches
• Driver information center (DIC) switch
• Headlamp switch
• Head-up display (HUD) switch
• Heated seat switches
• HVAC control assembly
• Instrument panel cluster (IPC)
• Memory function switch
• Radio
• Steering wheel controls
• Window switches
For the interior lighting to be dimmed the following conditions must be met:
• A low light level has been detected by the dash integration module (DIM)
• Headlamp switch is placed in to the PARK or HEAD position
• Ignition switch is placed in the ON position
Then all class 2 displays and all incandescent back lighting will be illuminated to the level set by the instrument panel (I/P) dimmer switch. When the I/P dimmer switch is moved from MIN to MAX, all class 2 displays and all incandescent back lighting respond from minimum intensity to maximum brightness.
The DIM supplies battery positive voltage to the coil side of the PRK LP relay in the rear fuse block.
When the I/P dimmer switch is moved from MIN to MAX, then the instrument panel module (IPM), W/CJ2, or climate control panel (CCP), W/C67, applies a message to the class 2 communication circuit to the DIM. The DIM then applies a ground to the park lamp relay control circuit. This energizes the PRK LAMP relay and allows battery positive voltage to be applied through the DIMR fuse to the DIM. The DIM then illuminates the following incandescent lamps through the incandescent dimming output circuit:
• Cigar lighter lamp
• DIC Switch
• Headlamp switch
• HUD switch
• HVAC control assembly
• IPC
• Radio
• Steering wheel controls
The DIM also applies a message to the following class 2 controlled illumination components:
• Drivers door module (DDM)
• HVAC control assembly
• IPC
• Radio
The DDM will then send a message through the simple bus interface (SBI) to the RH front door module (RFDM). The door modules will then illuminate the following components through the incandescent dimming output circuit:
• Air temperature switch
• Heated seat switches (W/KA1)
• Memory function switch (W/A45)
• Power door lock switches
• Power window switches
The ground for these components are provided from the DDM and RFDM.
The following components are grounded at G200:
• Headlamp switch
• HVAC control assembly
• IPC
• Radio
• Steering wheel controls
The following components are grounded at G201:
• Cigar lighter lamp
• DIC Switch
• HUD switch

Mar 13, 2017 | 2002 Buick LeSabre

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

1 Answer

Buick Rendezvous Head Up Display


not sure about that one but there is a dimmer wheel by the light switch. move it up and down to dim and brighten the dask lights/cluster. wheel may need replacing. also work the lights on and off switch manually to see if there every thing works smooth or hopes from dim to brite.

Feb 16, 2014 | Cars & Trucks

1 Answer

Instrument Panel Lights


Daytime headlight issue ? No , no sensor behind the front bumper . No Daytime time head lamp issue , doesn't turn on the instrument panel light's . This is more then likely a remote dimmer module problem .
Interior Lights Dimming Circuit Description (Pontiac)
When the park lights are on, battery positive voltage (B+) is applied via CKT 32 (YEL) to the remote dimmer module. The interior dimming switch in the lamp dimmer switch is a variable resistor which applies the dimming input via CKT 44 (DK GRN) to the remote dimmer module. The potentiometer in the lamp dimmer switch cannot provide enough current in order to operate the incandescent lights. The remote dimmer module amplifies the current, applying a variable voltage to the incandescent lights. As the amount of current increases, the lamps become brighter. As the amount of current decreases, the lamps become dimmer.
The radio, heater and A/C control assembly, instrument cluster, and passenger climate control each has a vacuum fluorescent (VF) display. When each module receives an input that the ignition switch is turned to the RUN position, each module activates the VF display at the full intensity. When the park lights are on, the radio receives the dimming level from an input on CKT 8 (GRY). The radio then relays this information to any other modules with VF displays. All modules with VF displays then adjust the dimming level of their VF display in order to match the level of the incandescent lamps.

May 16, 2017 | 1998 Pontiac Bonneville

1 Answer

2001 Civic dimmer not working


It's not high and low beam, it's the dash lights that are dim. I've hooked up many aftermarket radios but never knew it was a no no to hook up the dimmer/illumination orange wires in a '01 civic. I googled it and seen many others with similar issues like mine but nothing exactly like the issue I have.

All the dash lights work, they are dim though. The radio lights work but they are even more dim than the rest of the dash lights. I have check every single fuse under the dash and in the engine bay. The dim controller does not work at all now. I'm guessing that's the issue and from what I read, the dimmers circuit board is in the instrument cluster. Some can fix it, others can't.


I will probably end up buying a used instrument cluster off of ebay, they are not expensive. Hopefully that fixes it since everything else works.


Oh, yes, the brake lights work.


Ted, I think you answered the wrong question...I mentioned nothing about the battery or the low/hi beams

Aug 13, 2012 | 2001 Honda Civic

1 Answer

Dash lights and radio lights dim at night


Strange behavior. I don't see a relay, but the components have logic circuitry. Not sure why--bad design. What I would do is test the dimmer. Unplug the connector and put an ohmmeter across the yellow and gray wires (terminals S and J). Ohms should go from infinity to zero as you rotate the dimmer knob.

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Jul 30, 2017 | 2005 Chevrolet Monte Carlo

1 Answer

When i turn headlights on...radio lights go out..they come on when i turn dimmer switch..but then dome lights wont go off...tried it on all different positions...2008 patriot


It sounds to me like you may have a defective dimming switch. Are the instrument cluster lights working as they should? Do they dim/brighten with the dimmer? If the instrument cluster is working OK, then it could be an internal problem in the radio unit itself. Your panel lights are computer controlled. The processor in the instrument panel controls them. It uses a digital signal to "tell" the radio to either dim or brighten its lights. If the radio is failing to do so, the radio is the most likely cause since the lights work on "full power" which is also commanded through the same data lines. (this eliminates the signal from the cluster and the connection through the data lines.)

May 23, 2011 | 2008 Jeep Patriot

1 Answer

95 olds aurora, every time i turn on my lights the radio, climate control, and info. center lights goes off and they comes back on when i turn the lights off. whats going?


might sound a little simple, but is the dimmer switch turned all the way down? by design, those lights are all supposed to dim when the lights are turned on and the brightness is adjustable with the dimmer switch. if they are all going off and cannot be adjusted with the dimmer, i would suspect the dimmer switch is defected.

Mar 05, 2010 | Oldsmobile Aurora Cars & Trucks

1 Answer

Instrument panel lights do not come on.


Soldering the new bulbs in may have done something to the LH DIMMER MODULE ! The 10amp INT LPS fuse located in the I/P fuse box is good ? Is the dimmer switch at full bright ?
When the park lamps are on, battery positive voltage (B+) is supplied through the instrument panel (IP) fuse block INT LPS fuse via CKT 32 (YEL) to the dimming switch. The dimming switch supplies a variably controlled voltage to the dimmer module(s). The potentiometer in the panel dimming control cannot provide enough current in order to operate the panel lamps. The dimmer module(s) amplifies the current, supplying the variable voltage to the panel lights. As the amount of the current increases, the lamps become brighter. As the amount of the current decreases, the lamps become dimmer.
Buick
There is only 1 dimmer module that supplies current to the panel lights. The left dimmer module supplies current via CKT 8 (GRY) to the following components:
• The headlamp switch
• The door switch flood lamps
• The heater and A/C control
• The door handle flood lamps
• The passenger temperature control
• The ashtray lamp
• The shift select switch lamp
• The instrument cluster
• The steering wheel controls
• The reset switch
• The trip odometer
• The radio
Parade Dimming
The parade dimming feature prevents the dimming of the VF displays when daylight is sensed by the lamp control module (LCM) and the park lamps are turned on manually. If the LCM senses night time conditions and the park lamps are on, the LCM allows the VF displays to be dimmed.
All of the modules with the VF displays receive the dimming level from an input on CKT 8 (GRY) or CKT 1244 (BRN). When the LCM determines that the above conditions are met, the LCM sends a signal to the instrument cluster and the radio via CKT 390 (YEL). For Buick, the radio then relays this information to the heater and A/C programmer and passenger temperature control via CKT 724 (PPL/WHT). The modules with the VF displays then adjust the dimming level of their VF displays to match the level of the incandescent lights.
LH Dimmer Module
Under the left side of the IP, on the left side of the steering column brace

May 25, 2017 | 1998 Buick Riviera

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