Problems installing a brake controller... Weird...

[harper223]

TV : 2013 Armada SL with tow package.


I took the Hensley True Control Gold brake controller from the old Tundra and using the Nissan's harness, hooked everything up, double checked with Hensley and Nissan to make sure the right wires were matched.

Problem : The controller only displays information when the brake pedal is applied. When I release the brake, screen goes black again. So I can't control gain or monitor any voltage, you know, basically use the controller. I checked all the fuses and they are good. Is this a relay problem? There is no constant power coming from the Nissan wiring harness RED wire.

Any ideas?

[enblethen]

Wrong fuse. The brake controller should be around a 10 amp. The 30 amp is for the charge line.

[harper223]

Tested the 30A fuse. It's good.

[harper223]

There's a 30A trailer tow fuse or relay, I'm having trouble getting to it so I'm not sure if it's a fuse or relay.

[enblethen]

Is there a fuse in the fuse block for the brake controller circuit?