Is there a procedure to retrieve engine fault codes from 1992 Ford Ranger XLT without scan tool?

There's no standardized, universally applicable "jumper wire" method to retrieve OBD-I trouble codes from a 1992 Ford Ranger XLT like there is with some later OBD-II systems. The 1992 Ranger uses a very basic OBD-I system, and accessing codes usually requires a scan tool specifically designed for that year and model. There's no simple DIY equivalent.

While some vehicles from that era might have methods involving checking blink codes from a specific light (like the check engine light), this is *not* reliable for the 1992 Ford Ranger. Relying on such methods would be unreliable and potentially lead to misdiagnosis.

Therefore, the short answer is no. You'll need a scan tool compatible with the 1992 Ford Ranger's OBD-I system to retrieve the engine fault codes. You might find an older, used scan tool at a repair shop, auto parts store, or online auction sites. Otherwise, a mechanic will have the necessary equipment.