Ford Explorer 1991-1994 Repair Manual

This document provides information about the A4LD electronic control transmission used in various Ford vehicles from 1988-1992. It describes the application of the transmission in different models and engines. It then provides details on the electronic control assembly (ECA) that controls the transmission, including sensors that provide input and solenoids that are controlled as output. The document outlines the self-diagnostic system for retrieving transmission fault codes through the quick test and circuit test procedures.