Looks to have plenty of wire to it, and those bigger amp relays don't go out very often, so thats good. Changing the module if already have one is a bet, keep the other as spare just to get off the road if need be. If you relocate the module, make sure its on a heat-sink of some kind and protect the wires good. Probe type wire is very flexible and can take more vibrations easier. These guys are good to deal with and can help you out,
https://ceautoelectricsupply.com/products/These kind of problems are really hard to fix, sometimes you need it to stay dead long enough find out why.