Ford equipped the 1992 Bronco XLT with a 4.9-liter V-6 engine bolted to a five-speed manual transmission as standard equipment. A four-speed automatic transmission was an option, along with the choice of a 5.0-liter or a 5.8-liter V-8 engine. Use a hand-held scan tool such as Ford's Self-Test Automatic Readout tester or an equivalent on your Bronco XLT to access the on-board diagnostics.
OBD2 came about in 1996 because of the Environmental Protection Agency's Clean Air Act. Prior to that, the on-board diagnostic system was not standardized and each manufacturer had its own system of diagnostics accessed through a data link connector mounted somewhere on the vehicle. Access the OBD system on your 1992 Bronco through the DLC located in the engine compartment. The DLC is mounted on the driver-side wheelwell on the front side of the shock tower.
