The Matrix has about 180,000 km on it, and things occasionally act up, or maybe it's 'act out.' Is there a reader which will cover the tranny and engine well, at less than a king's ransom in price? Is there any need to be car-brand specific, or will a general one do. Also, a specific question is: can the code readers detect faulty warning lights & such? I have no smartphone.
Thanks very much for any advice.