Signal Specification
All values given below are between the connection stated in column 1 and connection #22 in column 1 (power ground). This applies unless otherwise indicated in brackets.
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 (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds |
| PWM = | Pulse width modulated signal as a % |
Connector C1
SIGNAL TABLE
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Ignition off | Miscellaneous |
|---|---|---|---|---|---|
| #1 | #C1-1 | 30 supply, power supply | U = Ubat | U = Ubat | - |
| #2 | #C1-2 | MS CAN L | Digital signal | Digital signal | - |
| #3 | #C1-3 | MS CAN H | Digital signal | Digital signal | - |
| #4 | #C1-4 | LIN bus 1 | Digital signal | Digital signal | Communication with components, LIN bus 1 |
| #5 | #C1-5 | LIN bus 2 | Digital signal | Digital signal | Communication with components, LIN bus 2 |
| #6 | #C1-6 | Reserve | - | - | - |
| #7 | #C1-7 | Reserve | - | - | - |
| #8 | #C1-8 | Reserve | - | - | - |
| #9 | #C1-9 | Reserve | - | - | - |
| #10 | #C1-10 | Reserve | - | - | - |
| #11 | #C1-11 | Reserve | - | - | - |
| #12 | #C1-12 | Blower fan | U=0 V- Ubat | U=Ulow | PWM with offset |
| #13 | #C1-13 | Reserve | - | - | - |
| #14 | #C1-14 | Signal, Air quality sensor | - | - | - |
| #15 | #C1-15 | Reserve | - | - | - |
| #16 | #C1-16 | Ground, evaporator temperature sensor | U=Ulow | U=Ulow | - |
| #17 | #C1-17 | Signal (+), evaporator temperature sensor | U=0.2-4.8 V | U=0.2-4.8 V | Temperature dependent |
| #18 | #C1-18 | Reserve | - | - | - |
| #19 | #C1-19 | Reserve | - | - | - |
| #20 | #C1-20 | Reserve | - | - | - |
| #21 | #C1-21 | Reserve | - | - | - |
| #22 | #C1-22 | Power ground | U=Ulow | U=Ulow | - |