No Power at Knob on Curt Spectrum Brake Controller

Question

Question:

Have power at the controller, no lights at the knob.

asked by: Robert S

0

Expert Reply:

I would start by using a hook probe tester like the # PTW2993 to check and see if you're getting a power feed on the wire coming out of the box on the Curt Spectrum # C51170 when the knob is plugged in. This will give you an idea if the knob might be faulty or not.

If you can let me know whether or not the box of the Spectrum is providing power out we can troubleshoot from there.

expert reply by: Erik B

0

Answer 1

I called Curt to confirm if this is expected. They assured me that this is normal. It lights up when the vehicle is started to indicate the Spectrum Trailer Brake Controller, part #C51170, is on and looking for a connection. Once it's found that…

view full answer...

Answer 2

Sine the LED does not light up on your Curt Echo #C51180, that means there's no power getting through to it. Given the fact that the Echo was receiving power and working properly at one point, chances are you're dealing with a poor ground…

view full answer...

Answer 3

I reached out to Curt who informed me the single red light on your Curt Spectrum Brake Controller #C51170 indicates there is an issue in the wiring for your vehicle going to the trailer. This could still mean the controller itself is faulty. A bench…

view full answer...

Answer 4

Hi Adam, Since you used the Curt Custom Wiring Adapter for Trailer Brake Controllers #C51525 to install the Curt Spectrum Trailer Brake Controller #C51170 you likely have either a blown trailer brake fuse or they just never installed one to begin…

view full answer...

Answer 5

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.

view full answer...

Answer 6

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…

view full answer...

Answer 7

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

view full answer...

Answer 8

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…

view full answer...

Answer 9

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

view full answer...

Answer 10

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…

view full answer...

Answer 11

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

view full answer...

Answer 12

Hi Jeff, welcome back and sorry to hear that gave you so much trouble. The Redarc Tow-Pro Link Bluetooth Brake Controller #RED57AR will work on your Silverado. This plugs in-line at the back of your 7-way at the rear of the truck. You can either…

view full answer...

No Power at Knob on Curt Spectrum Brake Controller

Products Featured in This Question

Product Page this Question was Asked From

Featured Help Information

Instructions

Continue Researching