Is there a time delay relay for the dome light on 99 ram 1500 if so where is it located exactly

Time delay relay is the relay that allows the interior dome light to remain on for a brief time when you enter or leave the car.Usually the lights will remain on for a few minutes and then dim down and finally off.

It sounds like the daytime running lights were put on that circuit and the relay removed to keep them on constantly.
This sounds like a time and material repair that a shop will have to do. Tracing the wiring installed by the previous owner may be required to find out what was done.

The dome lamp receives power from the 10 amp micro fuse located in the Power Distribution Center (PDC) on the M1 circuit. This circuit is HOT at all times. The ground path for the lamp is provided in two different ways.

One way is through the door ajar switches. Circuit M2 connects to all the door ajar switches from the dome lamp. The switches are case-grounded to the body. When a door is opened, the plunger in the switch closes, completing a path to ground.

The second ground path is through the headlamp switch. Circuit M2 is spliced in with the door ajar switches. When the operator turns the headlamp switch to the dome lamp ON position, a ground path is provided through the switch on the Z1 circuit. This ground terminates at the instrument panel left center support.

The time delay relay is used to allow a time-ON function for the ignition switch lamp. Power for the relay is received on the M1 circuit from the 10 amp fuse located in the Power Distribution Center (PDC ).

When a door is opened, or the headlamp switch is moved to the dome lamp position, a ground path is provided for the relay on the M2 circuit. This energizes the relay, closing the contacts. When the relay contacts are closed, power is provided through the relay to the M50 circuit.

The M50 circuit supplies current to the ignition switch lamp in the steering column. Ground for the lamp is provided on the Z3 circuit. This circuit splices with the glove box lamp, the ash receiver lamp, and the PRNDL lamp. The Z3 circuit terminates at the instrument panel left center support.

So, I would check the time delay relay since it supplies power to the circuit. Also, check for a good ground at the instrument panel left center support.

This is actually a timed circuit but I don't have the exact location of the relay that controls it. Normally it would be a relay located on or near the interior fuse panel or one in the power distribution box under the hood. It should actually only keep the power on for about 5 min and is meant to save fuel and keep you from running your battery down at the same time. Now as far as what could be the problem, I would look at the relay and the door dome light activators. If one of those is shorted then it will short that as well. They control the power to the dome light also if the light switch is locked in the always on position or always off, controlling the dimming of the dash lights, it will effect the working of that circuit.

The location of the flasher relay on a 1998 Dodge Truck is in the fuse panel which is located on the left side of the dash. It is accessable when the door is open. All you need to do is pull off the panel cover to expose the fuses, and the diagram on the fuse cover will show you which one is the falsh relay. The one on my truck is blue, and is about one inch square.

Hope that helps.

check the bulbs in the lights then check the dome light delay relay

Yes this is in the body control moguel located under the dash by the brake pedel agenst the firewall its a black box
here is a pic of the location
https://w05.dealerconnect.chrysler.com/service/mds2002/serviceInfo/en_US/80a20e84.gif

check in the fuse panel for a blown fuse or a time delay relay to be blown out. if this checks out to be good, then you have a short in the wiring to dome light. also you may look inside the dome light socket for a blown light bulb or a short in the socket.

check switch

it's not required to have the key in the ignition for either the dome lights or headlights to be on unless of course you mean the daytime running lights. be that as it may, locate the head light relay in the engine compartment fuse panel near the battery and replace it. this should resolve the issue. the dome light could be an issue with another relay this time located in the interior fuse panel

they may possibly be on the same circuit so replacing the relay in the engine compartment may fix the dome light issue

robert

It's the IOD fuse. Trust me, I just fixed the exact problem on my '98 not ten minutes ago. The fuse is located in the fuse box inside the driver's side door. It will be the fuse on the bottom and toward the front of the panel with a black cover over it. Just pull the fuse holder straight out and snap the hinged cover forward to expose the fuse. Just a standard 10 amp automotive fuse and you're back in business!

Wes