04-05-2022, 07:01 PM
Use a wire tracer, which costs about $20 on Amazon, you should be able to find whatever device this board controls.
Joe Zhao @ Greenville TX 75402
2004 Newell Coach 701, 45-8, 4 Slides, Front Entry
Detroit Diesel 60 w/DDEC, Allison 6-Speed AT, ZF Suspension w/Steerable Tag, ZF Auto Traction Control