Checking components on LIN bus
- Ignition on.
The climate control module (CCM) has registered that the number of control modules on LIN bus 1 or 2 does not correspond with the number of control modules occupied in the car configuration.
If a control module is missing according to the car configuration, check that the control module is installed and correctly connected.
Check also whether any control modules are connected that are not occupied in the car configuration.
If the diagnostic trouble code (DTC) is stored together with CCM-0072, the fault can be due to several damper motor modules (DMM) having the same identity. In such cases, remedy by identifying the damper motor.
Read out which control modules/sensors are on LIN bus 1 and 2 and compare this to the car configuration. Which control modules and sensors are to be found and which alternatives can be presented in the car configuration can be read in the tables below.
LIN-bus: 1Control module/sensor On LIN bus 1 Damper Motor Position Sensor recirculation Always Damper motor, temperature left Always Damper motor recirculation (REC/OSA). If the vehicle is right-hand drive Left seat heating If the vehicle is equipped with seat heating Air quality sensor (AQS) If the vehicle is right-hand drive and equipped with an air quality sensor (AQS) LIN-bus: 2Control module/sensor On LIN bus 2 Damper motor, temperature, right Always Defroster damper motor If the vehicle is equipped with ECC Damper motor recirculation (REC/OSA). If the vehicle is left-hand drive Seat heater, right. If the vehicle is equipped with seat heating Air quality sensor (AQS) If the vehicle is left-hand drive and equipped with an air quality sensor (AQS) Car configurationParameter Alternative Steering Left-hand drive
Right-hand driveClimate control system ECC
ECC/AQS
ECC, rear AC
MCCSeat heating calibration No
Low 28C/82F-High 35C/95F
Low 30C/86F-High 36C/97F
Low 31C/88F-High 37C/99F
Low 32C/90F-High 38C/100F
Low 33C/91F-High 39C/102F
Low 34C/93F-High 40C/104F
Low 35C/95F-High 41C/106F
Low 36C/97F-High 43C/109FCabin filter Pollen filter
Air Quality System, AQSClick the VCT2000 symbol to check which control module/sensor does not correspond to the car configuration.
Remedy as necessary.
Other information:
- See Climate control, location of components
- See Dashboard environment panel (including climate control module (CCM)), replacing
- See Damper motor temperature, replacing
- See Damper motor, defroster, replacing
- See Damper motor, recirculation, replacing
- See Damper motor module (DMM) air distribution, replacing
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