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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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
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 .
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
Yes its located on the lever on your left on steering column just turn forward twice for regular lihgts front ,tail,& marke will light up. other wise your car is equipped with daytime running lights and twilight sentinel witch will automaticly turn your lights on.
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.
There is an adjustable delay for the twilight sentinel to turn the headlights off after the ignition key is removed and it is night time.
I had the 'daytime running lamps' installed on a 1990 Cadillac Deville that turns the headlamps only on when the ignition key is switched to on with an aftermarket module. The headlamps are about 70% or so as bright as the regular twiilight sentinel headlamps and parking lights and are designed to go on during the day.
The twilight sentinel overrides this feature when it gets dark outside.
I had the daytime running lamps installed by an auto electric shop that specializes in electrical systems, alarms, stereos, etc.
Check the following to see if your cars electrical system is causing a power drain.
*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.
*If all of the above test good, you likely have defective battery. Replace battery. Feel free to contact me if problems persist.
Your Alero has Twilight Sentinel, a feature that automatically turns your lights (exterior and interior) on and off based on the ambient lighting conditions. It's likely that this is what you are seeing. The lights should go off in 2 to 5 minutes. Have you tried waiting to see if they go out? Also, this car is equipped with a "battery buddy" that will shut down a power leak and prevent draining your battery and stranding you.