Your problem may be with any or all of these three items: The fuse, brake switch or bulbs in the brake lights.
Disconnect the inlet and outlet hoses to the heater and couple them together Or, if the hoses are the same size, remove one completely, and disconnect the other from the heater core, then connect it to the other engine outlet (or inlet, as the case may be).
Check fluid levels, -with engine warm, running in park.
If neither signal light works, the flasher may very likely be the problem. The hazard lights and the signal lights work off different flashers.
First, disconnect the battery. Then, raise the front of the vehicle and locate the starter which is touching the flywheel that is between the engine and tranny. Remove the bolts and disconnect the cables. Some times it is easier to remove the wires first some times not.
NO , Not from the factory.
The daytime running lights are connected to the bright lights. It just reduces the power for the daytime runners.
DRL = daytime running lights
They are daytime running lights. They are always on so people can always see you. Its a safety thing. Newer trucks have specific daytime running lights.
yes , by removing DRL
Look in the fuse box for a fuse marked DT lights
When daytime running lights do not work, it means the bulbs may have burned out. It could also mean the fuses have failed or there is a short in the wiring.