Tow hitch (optional extra)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
The trailer module (TRM) manages the electrical connection between the vehicle and the trailer. The trailer module (TRM) is directly connected to the rear electronic module (REM).
The primary task of the trailer module (TRM) is to manage output signals to the tow hitch cable harness for:
- Turn signal lamps
- Brake light
- Parking lamps
- Fog lamps.
The rear electronic module (REM) transmits the following voltages to the electrical socket for the tow hitch:
- Back-up lamp
- +12V voltage
- +12V supply.