Steering: Description and Operation

The Two Flow Electronic (TFE) Steering system increases power steering assistance while the vehicle travels at slow speeds. This allows for easier steering effort at slow speeds, and provides a more direct steering "feel" at high speeds.

The Multi-Function Chime (MFC) Module receives a vehicle speed signal from the Powertrain Control Module (PCM). The Multi-Function Chime (MFC) Module grounds terminal B8, energizing the TFE Steering Solenoid, when the ignition input (terminal A3) to the MFC Module is on and one of the following conditions are met:

^ The vehicle is increasing in speed and the speed is between 0 and 20 mph.

^ The vehicle is decreasing speed and the speed is less than 17 mph.

^ The vehicle is not moving. The solenoid activation times out after 120 seconds if no speed pulse is received during this time.

Power steering assistance increases when the solenoid is energized to ease steering effort.