System Overview: Signals
The table below summarizes the input signals to and output signals from the trailer module (TRM). The signal types are divided into directly connected signals and CAN communication. Fig 1 displays the same information with the Volvo component designations.
| Input signals |
Output signals |
| Directly connected: |
Directly connected: |
- Stop lamp signal from Central electronic module (CEM) (4/56) via left tail lamp.
|
- To tow hitch cable harness:
- Right turn signal lamp
- Left turn signal lamp
- Stop lamp right
- Stop lamp left
- Parking lamps
- Back-up lamp
- Fog lamps
- Charging (+12 V voltage).
|
| Via Controller Area Network (CAN) communication: |
Via Controller Area Network (CAN) communication: |
- Central electronic module (CEM) (4/56)
|
- Central electronic module (CEM) (4/56)
- Driver information module (DIM) (5/1)
- Differential electronic module (DEM) (4/82) (option)
- Parking Assistance Module (PAM) (4/86) (option)
- Parking Assistance Camera (PAC) (4/120) (option)
|
Courtesy of VOLVO CARS CORPORATION