Trailer Tow

WARNING: This page is about a different car, the 2002 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

The trailer lighting is controlled by the trailer tow module (TTM) (if equipped). The architecture of the vehicle lighting system requires the TTM to be used for correct trailer lighting operation. The TTM controls the park, turn, and stoplamps of the trailer lighting when connected. Trailer lighting is powered through the trailer tow relay and trailer tow auxiliary junction box (TTAJB). The TTM, which is hardwired to the rear electronics module (REM), senses the vehicle's rear exterior park, turn, and stoplamps. For turn lamp operation, when either turn lamp is activated, the TTM will apply power to the appropriate trailer turn lamp(s). For stoplamps operation, the TTM senses the vehicle right rear stoplamps only, and when activated, the TTM will apply power to both trailer stoplamps. For tail lamp operation, the TTM senses the vehicle right rear lamp only, and when activated, the TTM will apply power to the trailer tail lamps.