Question about 1996 Dodge Ram 1500 Club Cab

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2004 Ram 1500 Laramie 4x4 Quad - no running indicator lamps? Daytime head lamps, signal, brake, and dim & bright headlamps work but no running lamps. Any ideas?

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2005 cavalier dash lights not working. all fuses are goood. replaced cluster, dimmer switch, multifunction switch


Back lighting or warning lights ? check engine , ABS , air bags , seat belt , oil light etc... ?
Interior Lamps Dimming
The second group includes lamps which may be dimmed. This group may use a combination of vacuum fluorescent (VF) illumination and incandescent lamps.
• Power window switches
• HVAC control head assembly
• Radio
• The instrument panel cluster (IPC)
When the ignition switch is turned to the ON position, the vacuum fluorescent (VF) display (radio) turns on at maximum brightness. When the park lamps are ON 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. When the headlamp switch is placed in the PARK position, the park lamp supply voltage circuit provides an input to the body control module (BCM). The BCM then supplies voltage to the instrument panel dimmer switch through the instrument panel dimming lamps control circuit. The setting of the instrument panel dimmer switch determines the amount of voltage that the instrument panel dimmer switch supplies to the BCM through the instrument panel dimming lamps low reference circuit. The BCM then sends a pulse width modulated (PWM) voltage to all the interior lamps. All the vacuum florescent (VF) and incandescent back lighting lamps are provided a specific voltage and are then grounded. When the headlight switch is turned to the PARK or HEADLAMP position, all incandescent back lighting turn on at the dimming level indicated by the IP dimmer switch. 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.

I would have it checked for DTC'S - diagnostic trouble codes stored in the BCM !
DTC B2624 Display Dimming Input Range/Performance
The body control module (BCM) supplies voltage to the instrument panel dimmer switch through the instrument panel dimmer switch signal circuit. The dimmer switch varies the voltage and returns the new voltage to the BCM through the dimmer switch signal return circuit. The BCM uses this voltage to determine the illumination level of the instrument panel lamps.

DTC B2625 Display Dimming Pulse Width Modulation (PWM) Output Circuit Range/Performance
The body control module (BCM) receives a variable voltage from the instrument panel (I/P) lamp dimmer switch. The BCM uses this signal in order to vary the illumination level of the I/P lamps. The I/P dimming lamps output from the BCM is a pulse width modulated voltage supply used to light the I/P lamps. If a malfunction occurs in the I/P dimming lamps output circuit, this DTC is set.

DTC B2662 Park Lamp Switch Circuit Malfunction
The park lamps are controlled by the turn/headlamp switch. Positive battery voltage is supplied to the switch through the EXT LP fuse. When the turn/headlamp switch is placed in the park or head position, battery voltage is supplied to the park lamps. The body control module (BCM) is also connected to the park lamp circuit to sense whether or not the park lamps turn ON when the low beam or high beam headlamps are turned ON. The BCM also uses the parklamp battery positive voltage to power the instrument panel (I/P) dimmer output circuit. If the BCM senses that the low beam or high beam headlamps are ON and the park lamp input is not active, DTC B2662 sets.
Do the park lamps work ?

Jun 11, 2017 | Cars & Trucks

2 Answers

How to turn off the daytime running lights on my 2005 chevy equinox


you have to change daytime running lights module.For now remove cable from battery +

Mar 19, 2016 | Cars & Trucks

1 Answer

Where is the fuse located for the daytime running lights on a 2005 Chev Siveraado?


It is located in the underhood fuse/relay box , marked DRL 10 amp fuse ! Also if that is good check the DRL relay in the same fuse/relay box .Your light sensor could also be bad .
The daytime running lamps (DRL) will operate when the ignition switch is in the RUN position, for automatic transmissions (A/T), the gear selector is not in the PARK position, the headlamp switch is in the AUTO position, and for manual transmissions (M/T), the park brake is released. When these conditions have been met and the ambient light sensor indicates daytime conditions, the DRL will illuminate. The ambient light sensor is a light sensitive transistor that varies its voltage signal to the body control module (BCM) in response to changes to the outside (ambient) light level. When the BCM receives this signal it will either turn on the DRL or the headlamps for auto headlamp operation. Any function or condition that turns on the headlights will cancel the daytime running lamps operation. The DRL can be manually turned OFF by depressing the AHL/DRL switch in the headlamp switch
Do you know that on inside of fuse box lid it shows what fuse is what .

Feb 01, 2016 | 2005 Chevrolet Silverado

1 Answer

Dim head lamps and day light running lamps won't come on my 2000 Buick lasabre


Daytime Running Lamps
With the daytime running lamps (DRL) programmed to be on, the DRL will operate when the ignition switch is in the ON position, the gear selector lever is out of the PARK position, the headlamp switch is in the OFF or PARK position, and the ambient light sensor indicates daytime conditions. Battery positive voltage (B+) is supplied to the DRL relay coil through the underhood fuse block. Battery positive voltage is supplied through the underhood fuse block FOG/DRL Fuse to the DRL relay normally open contact. The DRL relay normally closed contact receives ground for normal high headlamp operation. When the dash integration module (DIM) determines that conditions are right for the DRL, the DIM grounds the DRL relay coil. This energizes the DRL relay coil and closes the switch to the normally open contact. Battery positive voltage (B+) is supplied to the LH and RH high beam headlamps in series. The high beam headlamps split the voltage and each lights at half intensity. Current will follow the path from the DRL relay to the LH high beam headlamp, HDHIBML Fuse, HDHIBMR Fuse, the RH high beam headlamp, then to ground.
Does your vehicle have
Twilight Sentinel
The twilight delay switch in the headlamp switch is supplied a reference voltage from the instrument panel integration module (IPM). It is supplied a reference ground from the IPM. The switch is a potentiometer that resistance varies as the switch is moved. The IPM receives an input voltage proportional to the resistance of the potentiometer. The IPM sends a class 2 message to the dash integration module (DIM) indicating the on/off status and delay length for the twilight sentinel. With the twilight sentinel in an ON position, the DIM will automatically control the headlamps on/off status depending on the nighttime/daytime status of the ambient light sensor. The DIM will use the twilight sentinel delay length to know how long to keep the headlamps and park lamps on after the ignition switch transitions from ON to OFF during nighttime conditions.
If you don't know about these things you best bet is to take it to an ASE certified repair shop or the dealer .
If you
Your best

Nov 30, 2015 | Buick Cars & Trucks

2 Answers

Are the head lights on all the time 1999 chevy silverado 1500 4x4


On a 99 chevy silverado if equipped with auto headlamps there is a sensor on the dash near the front center of dash a small black bubble. If it is covered it will cause the lights to stay on. The day time running lights are typically seperate from the head lamps

Jul 13, 2014 | 1999 Chevrolet Silverado 1500

1 Answer

Oldsmobile intrigue problems


The switch is bad >
Each headlamp is individually fused so that battery voltage is applied to the individual lamps at all times through circuit 1640 for the LH headlamps and through circuit 1740 for the RH headlamps. When the headlamp switch is in HEAD, the ground is applied directly to headlamp switch through circuit 1750. When the headlamp switch is placed in LOW, ground is applied to the low beam headlamps through circuit 1201. When the headlamp switch is placed in HIGH, ground is applied to the high beam lamps and to the high beam indicator through circuit 1200. The high beam indicator is fused so that battery voltage is applied at all times through circuit 640.

The box you hear the click in is the daytime running lights control module .
Do you know how to do electrical testing using a DVOM- digital volt ohm meter or a test light ?

Low and High Beams Headlamps Inoperative
Step
Action
Value(s)
Yes
No
1
Was the headlight system check performed?
--
YES - Go to Step 2
NO - Go to Headlight System Check
2
Does flash to pass function normally in the headlight system check?
--
YES - Go to Step 3
NO - Go to Step 7
3
Does the autolamps low and high beam operate normally?
--
YES - Go to Step 4
NO - Go to Step 6
4
Turn the headlamp switch to the Head position and the headlamp dimmer switch to Low position.
Using a test lamp, backprobe between connector C201 terminal W and ground.
Is the test lamp on?
--
YES - Go to Step 5
NO - Go to Step 6
5
Repair poor connection or open in circuit 1750 between connector C201 terminal W and S283.
Is the repair complete?
--
Go to Headlight System Check
--
6
Replace the headlamp switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle for service procedure.
Is the repair complete?
--
Go to Headlight System Check
7
Repair poor connection or open in circuit 1750 between S283 and ground.
Is the repair complete?
--
Go to Headlight System Check

May 13, 2017 | Cars & Trucks

1 Answer

I have a 2001 dodge ram 1500. does anyone know anything about the headlight wiring?I would like to know how it works. Currently , i know the violet wire is 12v constant and the vt/wht wire is ground when...


Well, where to start...
First there are 4 different headlamp systems available for 2001 Dodge Ram 1500.

> WITH Daytime Running Lights and WITH Quad Headlamps

> WITH Daytime Running Lights and WITHOUT Quad Headlamps

> WITHOUT Daytime Running Lights and WITH Quad Headlamps

> WITHOUT Daytime Running Lights and WITHOUT Quad Headlamps

So providing you with an EXACT flow chart of what happens depends on which system your truck is equipped with.

However, the general jist of it goes like this:

The Violet wire you mention is your power feed to the bulbs (high beam and low beam elements) from the headlamp fuse (HOT AT ALL TIMES). The dimmer switch basically determines which of the two headlamp elements is going to get grounded to complete the circuit. When the Violet/White wire gets grounded, that is low beam. When the Red/Orange wire gets grounded, that is high beam.

Just a little "Automotive Electrical Systems 101":

Your Headlamps work just like ALL automotive electrical circuits. The power goes from battery POSITIVE to battery NEGATIVE in order to complete the circuit. PERIOD! Every circuit on your vehicle is as simple as that. If you take a closer look at the wiring diagrams, you will see this.

Apr 10, 2012 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

Daytime running light do not come on , brights and


check to see if the parking brake is not partially engaged

Oct 20, 2009 | 2003 GMC Sierra 1500

1 Answer

Brake lights dont work, Turn Signals all goofy


First thing i would do is chg. the break light switch, and make sure to chk. all grounds around tailights, sometimes if there is a ground problem it will travel back thru the hot wire to get a ground, witch in turn makes everything go wackey.

Mar 10, 2009 | 2004 Chevrolet Tahoe

1 Answer

Tail lamps and front corner lamps inop


If the fuse was melted, I doubt that all 4 bulbs went bad at once. It sounds like you have a short circuit there. The power goes from the fuse, up to the head lamp switch and then to the 4 lamps. Check to see if the headlamp switch is working properly.
Charlie

Nov 16, 2008 | 2002 Dodge Ram Maxi

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