Part 1 -1992-1994 2 Ford Ranger Alternator Wiring Diagram Jun 25, 2019Here's a simplified wiring diagram of the alternator circuit for the 1992 2 Ford Ranger. The 1993-1994 alternator circuit wiring diagram is in the next page. Testing the alternator, to see if it's charging or not is a pretty simple test, especially of you have a wiring diagram! Hope it helps. 1994 Ford F-150 Alternator | AutoPartsWarehouse Looking for a 1994 Ford F-150 Alternator? Get yours at Wholesale Prices and Free Shipping over $50 only here at AutoPartsWarehouse!