Dodge RAM 2500 2022 Owner's Manual page 240

236 STARTING AND OPERATING
NOTE:
An aftermarket controller may be available for

use with trailers with air or EOH trailer brake
systems. To determine the type of brakes on
your trailer and the availability of controllers,
check with your trailer manufacturer or dealer.
Removal of the ITBM will cause errors and it

may cause damage to the electrical system and
electronic modules of the vehicle. See an autho-
rized dealer if an aftermarket module is to be
installed.
Towing Requirements — Trailer Lights And
Wiring
Whenever you pull a trailer, regardless of the trailer
size, stop lights and turn signals on the trailer are
required for motoring safety.
The Trailer Tow Package may include a four- and
seven-pin wiring harness. Use a factory approved
trailer harness and connector.
NOTE:
Do not cut or splice wiring into the vehicle's wiring
harness.
The electrical connections are all complete to the
vehicle but you must mate the harness to a trailer
connector. Refer to the following illustrations.
NOTE:
Disconnect trailer wiring connector from the

vehicle before launching a boat (or any other
device plugged into vehicle's electrical connect)
into water.
Be sure to reconnect once clear from water

area.
Four-Pin Connector
1 — Ground
2 — Park
3 — Left Stop/Turn
4 — Right Stop/Turn
Seven-Pin Connector
1 — Backup Lamps
2 — Running Lamps
3 — Left Stop/Turn
4 — Ground
5 — Battery
6 — Right Stop/Turn
7 — Electric Brakes
Trailer Light Check
This feature will run the trailer lights through a
sequence to check the trailer light function. It is
available in the instrument cluster under the
Trailer Tow menu Ú page 113.