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Old 03-16-2012, 10:35 PM   #1
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Electric brake controler

Have a 2009 crew cab silverado z71 1/2 ton with the 5.3L v8 and the heavy duty towing package. I need to install a brake controller. Is this an easy task. I just upgraded from a little lightweight hybrid trailer to a wildwood 29qbbs. Does anyone have any tips or suggestions? I've never used a brake controller and have no experience with them.
Help please.
Thanks
Brad
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Old 03-16-2012, 10:51 PM   #2
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It is easy to install if your truck has the brake controller connection port included with the tow package. Its a bit more work if you don't have the wiring. Tekonsha includes directions for each method, but first check if your truck is set up with the port.

I recommend the P2 or P3. Either will work fine for your setup.
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Old 03-16-2012, 10:55 PM   #3
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Thanks man... The book says its wired. I just wasn't sure if I had to get a vehicle specific adapter or if they were somewhat universal...
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Old 03-16-2012, 10:56 PM   #4
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I know on my F-250 they just plug into the adapter under the dash just under the steering column. I have a prodigy brake controller by Tekonsha.Tekonsha. It is a proportional controller instead of a time delay sensor. Which basically means it is able to detect when the TV is slowing down it applies the electric brake on the trailer proportionally. So the harder you brake the harder the elecrtric brake brakes. I love mine. It also has a sensor that you can increase or decrease the sensitivity of it. I pull a SALEM 32BHDS and it slows it down nicely. It doesn't allow the trailer to push you when you come to a stop.
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Old 03-16-2012, 10:58 PM   #5
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Another vote for the Prodigy P2 or P3. You'll need to order the specifc wiring harness for your truck. As your truck has the tow package, there be a factory plug for this harness under the dash.

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Old 03-16-2012, 11:04 PM   #6
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You might look at etrailer for their videos and what they recommend for specific trucks. As Dave said, you will want the harness for your truck. I got my latest BC - the P3 - from AdventureRV. Who had the best price at the time.
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Old 03-16-2012, 11:09 PM   #7
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Great thanks!
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Old 03-17-2012, 01:48 AM   #8
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another vote for the Prodigy.

have to ask, how did you tow your hybrid trailer without a brake controller?
it's required by law, since the hybrid has electric brakes.
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Old 03-17-2012, 07:21 AM   #9
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GM does their wiring two ways... one is a plug in harness and the other is the wires are taped in a bundle and behind the quarter panel cover. I have had both GM configurations. If it came from the factory with a towing package the accommodation are there for the brake controller. The owners manual should give you good details on the the location and type of wiring. I believe in the newer trucks to save money they quit putting the harness in the glove box and you have to go to the dealer to purchase. Definitely get a Prodigy P2 or P3, then watch the little DVD that comes in the box, it will make you a happy camper.
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Old 03-17-2012, 07:42 AM   #10
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the wiring is already there under the dash and the wires are blunt cut and taped. just make sure you hook up the right colour. i will post the insructions right from gm. you dont need to buy anything but a brake controller. i suggest the p2 or p3 as well..

Procedure for Installation of an Aftermarket Trailer Brake Controller



Models: 2007-2012 Cadillac Escalade, Escalade ESV, Escalade EXT

2007-2012 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2007-2012 GMC Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL

2008-2010 HUMMER H2

with Integrated Trailer Brake Controller



--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
This bulletin is being revised to add the 2012 model year. Please discard Corporate Bulletin Numbers 07-08-45-001F (Section 08 – Body and Accessories).
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Important: Installation of an electric brake controller and the wiring connections outlined in this bulletin are the responsibility of the dealership or customer. These repairs should never be charged to warranty. If you have any questions, please consult with your District Service Manager.

Some customers may request to have an aftermarket trailer brake controller added to their vehicle, OR in lieu of the factory integrated trailer brake controller (ITBC) (RPO JL1).

Installation Instructions

Starting with the new 2007 full-size utilities and pickups and 2008 HUMMER H2, there is no longer an electric trailer brake controller pigtail harness.

To install an aftermarket trailer brake controller, use the four blunt cut wires located near the data link connector.

The following steps should be used to complete the installation.



Four Blunt Cut Wires



Dark Blue


Circuit 47


Brake Signal to Trailer Connector



Red/Black


Circuit 242


Battery Power



Light Blue/White


Circuit 6311


Brake Switch Input



White


Circuit 22


Ground








Important: Ensure that the ringlets are not interfering with the UBEC cover.

1. Place the terminal on the larger of the two studs at the front of the electrical center and secure with an M8 nut. This is circuit #242 to stud #2, to power the aftermarket trailer brake controller.

Important: The fuse is already present in the vehicle to power the electrical trailer brake controller system.

2. ONLY For Vehicles Equipped with JL1 – Locate connector X126 or X115 (varies with vehicle build; refer to SI) near the underhood fuse block. Refer to SI Document ID# 1849049 – I/P Harness-Engine Compartment. Circuit 47 from the blunt cut wires near the data link connector will end at connector X126 terminal “G” or X115 terminal “B5.” Obtain enough Dark Blue 12 gauge wire to run from X126/X115 to the 7-way trailer connector at the bumper. On one end of the Dark Blue wire attach terminal part number 15304732, located in Delphi Tray 8 and insert into X126 “G” or terminal part number 15304720 located in Delphi Tray 19 and insert into X115 “B5.” Run the Dark Blue wire in its own conduit along the frame to the 7-way trailer connector at the bumper. Remove circuit 47 from the 7-way trailer connector terminal “C” and tape the bare terminal and attach to the harness. Attach terminal part number 12110853, located in Delphi Tray 4, to the other end of the Dark Blue wire and insert it into the 7-way trailer connector terminal “C.”

3. ONLY For Vehicles Equipped with JL1 – The Red/Black wire, circuit 242, must be connected to stud #2 of the 30 Amp fuse of the underhood fuse block. This wire is located between the left fender and the underhood fuse block.





Important: This procedure will not result in any trailer brake related display messages to be set. However, ITBC diagnostics will continue to function. If an ITBC fault is detected, a “Service Trailer Brake System” message will be displayed on the driver information center (DIC) and an appropriate DTC will be stored in the ITBC module. The operator will still be able to adjust gain and access the “Trailer Gain / Output” display page in the DIC. However, the factory installed ITBC system will not sense a trailer connection and will not provide output to the trailer.

4. Locate the trailer brake control circuits that are looped and taped to the main harness under the instrument panel.





5. Pull the trailering wire harness down.





6. Match the vehicle harness label circuit functions to the trailer brake controller jumper harness functions.

Important: The color or wires to be joined together may not match.

• Dark Blue Wire: switched power from controller to trailer brakes

• Red with Black Stripe: fused vehicle power to electrical brake controller

• Light Blue with White Stripe: Brake switch input to power electric brake controller

• White: ground

• Orange: CHMSL (Center High Mounted Stop Lamp) — not required with most systems





7. After completing the under dash connections to the electric brake controller, open the hood and locate the red wire that is taped to the harness between the underhood electrical center and the driver side front fender.

8. Break the tape on the red/black wire and pull it toward the front of vehicle.

9. Remove the lid from the electrical center.

Auxiliary Power (Applies to All LD and 2007-2009 HD's Only) Without JL1




Circuit #742 for Auxiliary Power at the 7-way trailer connector is no longer connected by the GM Assembly Plant. If the customer desires auxiliary power at the trailer connector location (i.e. refrigeration, battery charger or interior light in the trailer), complete the following steps to connect circuit #742:

1. Locate the red/black wire, looped and taped to the chassis harness, below the brake master cylinder.

2. Break the tape and route the wire to the front of the underhood electrical center.





Important: Ensure that the ringlets are not interfering with the UBEC cover.

3. Place the terminal on the smaller of the two studs on the electrical center and secure with an M6 fastener. This is circuit #742 to stud #1 for auxiliary power to the 7-way trailer connector.

4. ONLY for vehicles without RPO TP2 - Auxiliary Battery, install a 40♦amp fuse to power the circuit.

Important: For vehicles equipped with RPO TP2 — Devices powered by this fuse will drain the vehicle battery if left connected with the vehicle not running.

Warranty Information

This installation procedure is to be performed at the customer's request and at their expense. It is not a warranty repair and a claim should not be submitted for reimbursement.
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