^^ Is the original headlamp switch fried
I remember rebuilding the entire rear suspension in a J10, its got a dozen control links in the back with bushings everywhere, if you applied diesel to them after every wash they would wear out and cause the car to drive like a bowl of chit, They need to be installed dry and then tightened with the wheel hub sitting at normal height. The alignment of these cars also require that the alignment done from contacting the hubs and not the wheels. Most shops in Pakistan lack that equipment.
Even aligning the timing belt is a bit of an anomaly, the engine is not at TDC when the marks line up. All of this and the A/C compressor being in a weird place - which calls for the mechanic to first remove the brake master cylinder, our local mechanics usually run from complicated stuff, for them - they want the simplest of jobs that can be done with the simplest of basic tools in the simplest way - and they want to do it over and over again - A correct repaired Subaru J10 is against that - it will be years before the owner comes in for some job.