The 1992 Ford Explorer's transmission shift modulator isn't a standalone, easily identifiable part like a sensor. Instead, it's
integrated into the valve body of the transmission itself. You won't find a separate unit labeled "shift modulator."
To access it, you would need to remove the transmission (a major job) and then disassemble the valve body to reach the modulator components within. It's not something easily replaced or even inspected without significant transmission work.
