Installing Brake Controller on 1988 Chevy C70 Truck

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Question:

I have a 1988 C70 truck I want use a Tekonsha 9030 Voyager controller I already have. what wiring harness do I need for this truck?

asked by: Dean J

0

Expert Reply:

Your 1988 Chevy C70 isn't prewired for a brake controller, so you'll need to hard wire the controller.

In order to do this, you'll need our brake controller installation kit, part # ETBC7 and a brake controller like the Tekonsha Voyager # 39510 Brake Controller. The kit includes a 7-way trailer connector, wire, hardware and circuit breakers you'll need to complete the installation. Due to the large size of the C70, I'd recommend getting an extra 20 feet of wire, which is sold by the foot as # 10-2-1.

The 7-way adapter will have a 4-pole plug on it, so you'll need to install a 4 pole trailer connector, part # 18252. The green wire would tap into the right turn signal circuit, the yellow wire into the left turn, the brown wire into the running lamps and the white wire would ground to the truck frame. This leaves 3 wires remaining. The black and blue wires would be connected to the two leads in the duplex cable included with the kit. The cable would be ran under the vehicle to the engine compartment and into the cab. The purple wire is usually tapped into the reverse lamp circuit if the trailer has reverse lamps. If it doesn't, just bundle the wire up out of the way.

The remainder of the installation will proceed exactly as shown in the instructions I've linked for you.

expert reply by: Mike L

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Answer 1

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Answer 2

The procedure for installing a brake controller in your van will depend on what (if any) trailer connector is on the vehicle. If the van has the factory installed 7-way or 4-way connector, there will be a port under the dash for installing a brake…

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Answer 3

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 4

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Answer 5

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Answer 6

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 7

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 8

Hey Antoine, so the two kits you mentioned are actually really similar and honestly I would go with the part #ETBC7 if I were you. The #ETBC7L is basically the same thing minus a couple wires and breakers so you may as well get the kit that has…

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Answer 9

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

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Answer 10

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Answer 11

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Answer 12

The first thing you will need for your 1999 D250 is a 4-way. The Curt T-Connector Vehicle Wiring Harness #C55317 plugs into the connection points behind your rear bumper and will allow you to power your trailer's signal lights. Once the 4-way is…

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Installing Brake Controller on 1988 Chevy C70 Truck

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