Signal Specification, Climate Control Module (CCM) [2016-2017]
SIGNAL SPECIFICATION, CLIMATE CONTROL MODULE (CCM)
General
All the values given below apply between the respective terminal (column 1) and power ground (#22). If this is not the case, it is indicated within brackets.
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
| 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 (s) |
| PWM = | Pulse-width modulation |
CONNECTOR C1
| 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 | - | - | - | - |
| #7 | #C1:7 | - | - | - | - |
| #8 | #C1:8 | - | - | - | - |
| #9 | #C1:9 | - | - | - | - |
| #10 | #C1:10 | - | - | - | - |
| #11 | #C1:11 | - | - | - | - |
| #12 | #C1:12 | Blower fan | U=0 V- Ubat | U = Ulow | PWM with offset |
| #13 | #C1:13 | - | - | - | - |
| #14 | #C1:14 | Signal, Air quality sensor | - | - | - |
| #15 | #C1:15 | LIN bus 3 | Digital signal | Digital signal | Communication with components, LIN bus 3 (*) |
| #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 | - | - | - | - |
| #19 | #C1:19 | - | - | - | - |
| #20 | #C1:20 | - | - | - | - |
| #21 | #C1:21 | - | - | - | - |
| #22 | #C1:22 | Power ground | U = Ulow | U = Ulow | - |
* Only applies to vehicles with structure week 201546-