Retained Accessory Power (RAP) Power Mode. Retained accessory power (RAP) is a power mode that permits the operation of some accessories for up to 10 minutes after the ignition switch is turned OFF.
What is stud #2 fuse?
Stud #2 is 30 amps and used for a trailer brake controller. Stud #1 is 40 amps for the 12v feed to the trailer. So yes, you can use either of them.
What does rap relay do?
RAP stands for Retained Accessory Power. The RAP relay keeps voltage applied to the sunroof, power windows, door locks, radio(s), and OnStar with the ignition off and all doors closed. With the aid of the proper scan tool, data such as door switch operation, battery voltage, and ignition input can be quickly viewed.
What is stud #1 fuse?
The manual states that STUD #1 is “Aux. Power (Single Battery and Diesels Only)/ DUal Battery (TP2). Do not install Fuse. The fuse is a 40A. It does not blow if just the headlights are hooked up.
What is retained accessory power?
The retained accessory power module takes control of any accessory driven by its relay. When the key is turned on, the relay is closed providing power to the accessories. The relay remains on for up to 20 minutes after the key is off, allowing the radio to keep playing or the power windows to be rolled up.
What does DRL fuse mean?
Locate the “DRL” or “Daytime Running Lamp” fuse. If you are unsure of the fuse location, consult your vehicle’s owner’s manual. Remove the “DRL” fuse from the fuse box and replace it with a new fuse.
What does HDLP mean in fuse box?
HDLP. Histone Deacetylase-Like Protein.
What does trec fuse mean?
TREC fuse, in the under hood fuse block. Take the cover off, lean over the fender, first row of fuses closest to the fender, second from the right (rear) side. It’s a regular 30 AMP fuse that powers the transfer case encoder motor and the shift control module.
What is LBEC fuse?
Acronym. Definition. LBEC. Left Bussed Electrical Center (automotive repair)
What does EAP stand for in a fuse box?
Extensible Authentication Protocol (EAP)
What does the run crank relay do?
It is usually located in the fuse and relay panel beneath the hood, and is responsible for providing power to the vehicle’s ignition system, and some of the fuel system’s components. When the relay fails or has an issue it can cause major problems with the operation of the vehicle.
What does the air fuse do?
When a hose breaks or connection fails, the piston inside the air fuse automatically stops the airflow. After a shut-off situation is resolved, the air fuse is automatically reset.
Can a fuse cause transmission problems?
The TCM will detect failures within the systems that it monitors and any failure, from a bad solenoid to a blown fuse, will trigger a limp-in mode designed to prevent further damage to the transmission while allowing some limited capacity to travel.
Is there a fuse for trailer brakes?
If the trailer brakes will operate with the manual switch, but not when the truck brakes are applied, check the CHMSL fuse in the fuse box under the hood. The lid to the fuse box will have a legend that will help you locate the fuse. Your trailer brakes might simply need adjusting.
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