2010 prostar suspension dump fault

[DVT873]

(01-10-2020 )Downthehaul Wrote:  Can’t believe this, after doing that for a year it suddenly works perfect. And it was a slow flash. I’ve tested it a bunch and the solenoids work consistently both ways evey time. However the switch still flashes sometimes.

Gotta love electrical. Slow flash once per sec. Fast flash 2 per sec. Should be a 4 pak board . Board 2505594C1, solenoids 2506712C91, NO both of them. Ring where the air line goes in should be white. Black gizmo is the shuttle valve 3584247C1. The solenoids are battery voltage operated. Thar voltage comes from the body computer. The body computer reacts to the switch position in the dash. Taking a look at the troubleshooting you need to be under 5 mph. If the body computer doesn't like the status a.k.a. condition of the solenoids it won't let anything happen. I don't see a lot of these. What is odd is that the solenoid condition can either be a condition not met which would be this slow flash or a fault which would be the fast flash. Rawze is right the board is suspect. Also check the plug from the truck into the board for corrosion there. Once everything happens here it sends an error signal back to the ride control valve which controls the raise and lower of the suspension dump. Hope that helps some.