Signal Specification, Forward Sensing Module (FSM)
General
All the values given below are between the respective terminal in column 1 and terminal #C1:4 in column 2 (power ground) unless otherwise stated in parenthesis after the table entry.
NOTE:
It is important to connect the breakout box and check the ground connections before starting to measure.
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage in volts (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds |
| PWM = | Pulse width modulated signal in % |
SIGNAL TABLE
| Connector C1 |
|||||
|---|---|---|---|---|---|
| Breakout box terminal | Control module terminal | Signal type | Ignition off Active/Inactive | Ignition on Active/Inactive | Miscellaneous |
| #1 | #C1:1 | CAN L average speed | During communication the voltage is 1.5 - 2.5 V | - | |
| #2 | #C1:2 | CAN H average speed | During communication the voltage is 2.0 - 3.5 V | - | |
| #3 | #C1:3 | - | - | - | - |
| #4 | #C1:4 | Power ground | U low /Ulow | U low /Ulow | - |
| #5 | #C1:5 | - | - | - | - |
| #6 | #C1:6 | LED 2 left | U low /Ulow | Ulow / Ubat | Pulse width modulation (PWM) signal |
| #7 | #C1:7 | LED 1 right | U low /Ulow | Ulow / Ubat | Pulse width modulation (PWM) signal |
| #8 | #C1:8 | Power supply | Ulow / Ubat | Ulow / Ubat | Via relay, interior lighting CEM. |
| #9 | #C1:9 | Local CAN bus FLR, low signal | - | - | |
| #10 | #C1:10 | Local CAN bus FLR, high signal | - | - | |
| #11 | #C1:11 | CAN_H, sensor-CAN | During communication the voltage is 2.0 - 3.5 V | - | |
| #12 | #C1:12 | CAN_L, sensor-CAN | During communication the voltage is 1.5 - 2.5 V | - | |
| #13 | #C1:13 | Indicator visual collision warning, ground | U low /Ulow | U low /Ulow | - |
| #14 | #C1:14 | Forward Sensing Module (FSM) heating element, ground | U low /Ulow | U low /Ulow | - |
| #15 | #C1:15 | Forward Sensing Module (FSM) heating element | U low /Ulow | Ulow / Ubat | - |
| #16 | #C1:16 | 15-feed | U low /Ulow | Ulow / Ubat | Trigger signal |