• Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Here's a puzzling (fairly advanced) electrical question re a 2011 630

D

dougn

Husqvarna
AA Class
My brake lites, horn, headlight, and turn indicators stopped working. i figured out they are all on one relay and that relay is not working. the activation coil of that relay is getting power when the key is switched on (there's +12 on the input side of the solenoid). However, the path to ground on the other side of the input coil goes into a pin of the ECU. I can't imagine why it goes in to the ECU instead of just tying to ground. Anyway, that is showing an open circuit so the input side of the relay cannot get energized. Why would that ground path go into the ECU?
 
The ground is controlled by the ECU. Many ECU's switch grounds instead of power, leaving the relay isolated when it's not connected. I don't have the logic diagram of that ECU, so I can't tell why it wouldn't be switching, my guess is it's not receiving an expected input signal.

Do you have the wiring diagram for it?
 
I don't have a diagram for the ECU specifically. The fuel pump is not plugged in. Maybe that has something to do with it but it seems unlikely
 
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