get the new factory wire harness kit from AB,
it contains a relay and computer interface controller that is needed to make the system work,
this is added to the rear fuse panel , as is the new relay and fuse
Also included is the socket for the trailer wire plug.
also get a 7 pin to 4 pin wire converter plug so you can plug in the Uhaul trailer plug.
NOTE if you dont follow these instructions the chances are big that the BCU will be damaged,
and then you will need a new BCU as the tail lamps may be shorted out.
NOTE dont let the Uhaul place try to tap into the rear lamps as this can short out the BCU
NOTE you can also get the long tow hitch and ball from Curt,
its a plug and play deal IIRC the hitch is 12 or 14 inches long. about 35.00
Ball is about 12.00.
get the correct sized ball made by Curt,
thats good for 7500 lbs
NOTE dont use the Uhaul ball as its usually only good for 5000 lbs look at the specs before you buy.
NOTE with the factory harness installed you can also run extra wires to tap into the brake signal lines up at the RF passenger footwell,
and then send a brake force signal to a trailer with elex brakes.
then you would buy a brake controller for about 120.00
NOTE the Uhaul trailer has hydraulic brakes that are activated by the ball hitch pressure so no brake controller is used.
link to wire installation guide.
https://www.google.com/url?sa=t&rct...harness.html&usg=AOvVaw010ZLU55AM6T9qLKQAtKTq
it contains a relay and computer interface controller that is needed to make the system work,
this is added to the rear fuse panel , as is the new relay and fuse
Also included is the socket for the trailer wire plug.
also get a 7 pin to 4 pin wire converter plug so you can plug in the Uhaul trailer plug.
NOTE if you dont follow these instructions the chances are big that the BCU will be damaged,
and then you will need a new BCU as the tail lamps may be shorted out.
NOTE dont let the Uhaul place try to tap into the rear lamps as this can short out the BCU
NOTE you can also get the long tow hitch and ball from Curt,
its a plug and play deal IIRC the hitch is 12 or 14 inches long. about 35.00
Ball is about 12.00.
get the correct sized ball made by Curt,
thats good for 7500 lbs
NOTE dont use the Uhaul ball as its usually only good for 5000 lbs look at the specs before you buy.
NOTE with the factory harness installed you can also run extra wires to tap into the brake signal lines up at the RF passenger footwell,
and then send a brake force signal to a trailer with elex brakes.
then you would buy a brake controller for about 120.00
NOTE the Uhaul trailer has hydraulic brakes that are activated by the ball hitch pressure so no brake controller is used.
link to wire installation guide.
https://www.google.com/url?sa=t&rct...harness.html&usg=AOvVaw010ZLU55AM6T9qLKQAtKTq
