Signal Description, Steering Wheel Angle Sensor Module (SAS)
General
All the values given below apply between the respective connection (column 1) and ground (#A:2). If this is not the case, it is indicated in brackets.
NOTE:
It is important to connect the breakout box and check ground terminals before reading off.
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage | F = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds (s) |
| PWM = | Pulse-width modulation |
CONNECTOR A
| Terminal in the breakout box | Control module terminal | Signal type | Ignition on | Miscellaneous |
|---|---|---|---|---|
| #1 | #A:1 | - | - | - |
| #2 | #A:2 | Ground | U=Ulow | - |
| #3 | #A:3 | CAN L | During communication: U = 1.5 - 2.5 V |
- |
| #4 | #A:4 | CAN H | During communication: U = 2.0 - 3.5 V |
- |
| #5 | #A:5 | - | - | - |
| #6 | #A:6 | LIN | During communication: U=0 V- Ubat |
- |
| #7 | #A:7 | LIN | During communication: U=0 V- Ubat |
Central electronic module (CEM) |
| #8 | #A:8 | Power supply | U = Ubat | 15-supply from the ignition switch. |
| #9 | #A:9 | - | - | - |
| #10 | #A:10 | Horn | U = Ulow | Short circuit to ground when activated. |