Reese 74642 Brake Controller Troubleshooting

Question

Question:

My indicator light does not work when pressing brake pedal or manual switch. Does that mean brake controller doesn’t work? How can I check without hooking up my fifth wheel? Lights all work correctly but don’t k ow if brakes engage. Reese 74642 Brake controller

asked by: Chris J

0

Expert Reply:

Per the owners manual when there is no indicator light through the pedal or manual operation it is often because 1) no power to the unit through the black battery wire or 2) output is adjusted too low.

To troubleshoot the first potential cause, check the connections at the battery, circuit breaker, and brake control. To troubleshoot the second potential cause, see attached readjustment steps.

I've also included a help article for how to troubleshoot brake controllers with additional considerations there.

expert reply by: Patrick R

0

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Answer 1

On a 1999 Chevy C3500 there will NOT be a brake controller port to plug in a brake controller. The brake controller has to be hardwired into the truck. Chevy did not start putting in a port until they switched the trucks from C or K to Silverado.…

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Answer 2

Have you tried towing the dump trailer with a different vehicle? This would pretty quickly tell you if the problem exists with the tow vehicle or the trailer wiring. If the trailer does the same thing with a different tow vehicle, then you know the…

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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

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 5

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 6

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 7

For your 2024 Hyunda Santa Cruz we have the Curt 7-way kit part #C68JR that is a confirmed fit. This installs by plugging into a factory wiring connector on your vehicle which means a really easy install that doesn't require any splicing.

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Answer 8

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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Answer 9

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors which we…

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Answer 10

You do have the option to utilize the air brakes on your 2023 Freightliner Cascadia to control electric trailer brakes using the Hayes Air Actuated Trailer Brake Controller, part #HA100400C. However, we mostly recommend just using an electric brake…

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Answer 11

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 12

Sure thing, I will go ahead and list out what you need for your 2023 Kia Sportage to add a 7-way for a brake controller so you can tow with the Curt Trailer Hitch Receiver #C94WR: - T-Connector Vehicle Wiring Harness with 4-Way Flat Trailer Connector…

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Reese 74642 Brake Controller Troubleshooting

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