Usually a pulsing lights means that some component in the charging system is not working right. Probably the alternator, but it could also be a bad battery that is not holding enough charge. Always check the battery and alternator connections first to eliminate corroded or loose connections. The alternator should run everything with out being connected to the battery while running. Start the truck and then disconnect the negative cable if the truck dies then the alternator is going bad or has bad connections. I aways replace the battery and the alternator together. That leaves me no guess work later. Good luck.
By pulsate do you mean flicker. A momentary dimming of your lights can be caused by motor loads on your lighting circuits. If your lights dim, this can be caused by a refrigerator, sump pump, garage door opener or other motors sharing the circuit with your lighting.
Running the air conditioner for an hour typically consumes more electricity than leaving the lights on all day.
To disable the daytime running lights on a 1997 Mercedes S430, you may need to consult the vehicle's owner's manual for specific instructions. In some cases, it may require disconnecting or removing a fuse related to the daytime running lights system. Keep in mind that disabling or modifying safety features like daytime running lights may not be legal in all areas.
daytime running lights always go off when you shut off the car.early ones had time delay. check your twilight sentinel you'll feel a click when you turn it all the way when you feel the click turn it the other way
Pulsating strobe lights flash rapidly in a repeating pattern to create a flickering effect that grabs attention and creates a sense of excitement or urgency. The flashing lights may vary in speed and intensity to enhance the visual impact.
If your lights pulsate while the car is running in your E320, you probably have a problem with the alternator or distributor. This type of issue is most likely electrical.
Heartbeats, jellyfish, and some types of stars, known as pulsars, are examples of things that pulsate. Additionally, some electronic devices like LED lights and pulse oximeters also pulsate in their operation.
The lights are computer controlled. The under hood computer can set codes and keep the lights from working.
bad or failing alternator
that is usually same fuse as tail lights
we are having back brakes problems
Some vehicles have pulse generating devices such as injectors that draw load on an on/off basis. It is done very quickly and the electrical system (regulator and alternator) can compensate for this. The voltage drops very quickly for a fraction of a second and then shoots back up. This causes most lights to pulsate. This usually goes away or is less noticeable at driving speeds or if a fairly high load is placed on the alternator i.e. if you turn your headlamps on. My Dodge diesel truck does this too and Dodge is known to be one of the worse when it comes to pulse generating devices.
A DLR module is commonly used in cars. Its function is to control the daylight running lights and or switches the lights when starting the engine and dims when the normal beam is switched on.
Day time running lights?
How many running lights does a 2001 Nissan Maxima have ?
The running lights have a bad ground.
Loose alternator belt, poor ground connection, or loose or corroded electrical connections. A loose ground is the most likely culprit.