I bought my van and it shifts into 4x4 but it won’t engage. The light doesn’t come on like my other van. It’s a 5 speed with auto locking hubs I plan on replacing with warn manual hub but in the mean time I’m wondering if it’s something simple I’m missing. I checked the fuses and are all good. Thanks to all for all your help if it wasn’t for this forum these vans would be a nightmare