Electronic Shift Control System

WARNING: This page is about a different car, the 2009 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

4WD mode is selected using a rotary switch located on the instrument panel. With the vehicle ignition on, the on-board controller verifies and matches the shift motor position to the switch.

To shift in and out of 4WD low, 2 conditions must be met:

The transmission must be placed in NEUTRAL for automatic transmissions or the clutch pedal must be fully depressed and the vehicle stopped for manual transmissions. The digital Transmission Range (TR) sensor completes the ground circuit in NEUTRAL (automatic transmissions). The Clutch Pedal Position (CPP) completes the sense signal to the speed control servo when the clutch pedal is fully depressed (manual transmissions).
The vehicle speed must be less than 5 km/h (3 mph).