Question about 1997 Buick LeSabre

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1995 Buick Lesabre

Car is equipped with a twilight sentinel or daytime running lights. The headlights will not shut off automatically even after the car is turned off. It says 3 min delay but it would run until the battery is dead. We have been undoing the positive battery terminal each time we use the car. ( getting to be a pain) Is there a way to disable this feature. Any help you could give would be greatly appreciated! We have the same problem on a 1997 LeSabre. The relay used to work, but now the lights will not turn off, at all. Also having to disconnect the battery after driving. Anyone have a solution?

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Sound light the day time running relay or timer has gone bad...

Posted on Jan 19, 2009

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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

1 Answer

The instrument panel switch is making a ticking noise in !y 1992 Buick lesabre causing the headlights to stay on...killing the battery


Is the noise actually coming from the switch area or coming from under the dash area? Possible daytime running light /twilight sentinal modual shorted out causing your issue. Unplug this module and if the headlights go out,this will be your problem

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1 Answer

How disable Twilight on 99 Cadillac Deville


  • Examine the left dash panel to find the headlight switch. This is the control you use to turn the headlights on or off, with the exception of the daytime-running lights.
  • Look directly beneath the headlight switch. You'll see a small lever. This is called the "Twilight Sentinel." Move the lever all the way to the left to the "Off" position.
  • Turn the headlight switch to the "Parking Lights" mode. This icon has a symbol of two small bulbs. The daytime-running lights are now turned off.
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    Headlights won't turn off


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    Is there a headlight switch in the Olds Aurora. What if I need the headlights during the day when there is a snow storm or it is raining. I see a fog light switch and of coure the high beams but no


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    Can I program the automatic headlights to always shut off when the ignition is shut off - day or night?


    I have a 1997 cadillac deville that has both 'daytime running lamps' when put into gear and 'twilight sentinel' which turns the headlamps and parking lamps on at night, and goes off during the day or when it is bright enough.

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    ---
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    *Make sure all headlights and interior lights, and accessories are off when vehicle is not in use.

    *Have your alternator professionally tested to make sure the built in power regulator is not going bad. Also check that the alternator is putting out a proper charge during vehicle operation. (Use a digital multimeter, touch the test leads to the battery terminals while the car is running RED to positive+ and BLACK to negative-, being careful you don't cross the two and never let positive and negative touch. Multimeter should read 14 volts DC with the car running. If it reads under 14 volts, replace the alternator.

    *Check for a bad grounding wire (usually the negative battery cable), if it's cracked, frayed, or bare wire is exposed replace it right away. It can drain the battery if the bare wire touches the metal of the vehicle.

    * If your car is equipped with the twilight sentinel (automatic headlight feature) shut it off manually when your done using your car for the day. If the twilight sentinel is going bad, it can draw battery power even if the headlights are off.

    *Have a test performed to make sure you don't have a faulty ignition switch. This can draw power even with the ignition key off.

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    Can not find


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