Signal Description, Climate Control Module (CCM), Connector B
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2014 Volvo XC90, 2013 Volvo XC90, 2012 Volvo XC90, 2011 Volvo XC90, and 2010 Volvo XC90. However, it is still accessible from the selected car via links, so may be relevant.
General
There may be several connections and connectors between the control module and components.
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 (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | % duty = | Duty cycle (pulse ratio) as a percentage (%) |
| t = | Time in milliseconds (ms) |
| Breakout box terminal | Terminal | Connecting the component | Signal type | Ignition on | Engine idling | Other |
| #1 | #B1 | terminal #2 evap | Signal, evaporator temperature sensor | 0.1-4.85 V | 0.1-4.85 V | ECC, MCC (Ulow STD) |
| #2 | #B2 | - | - | -V | - | - |
| #3 | #B3 | terminal #3 air quality sensor | Signal, air quality sensor | Pulse width modulation (PWM) signal, 80 Hz. 0.4-12 V. | Pulse width modulation (PWM) signal, 80 Hz. 0.4-12 V. | ECC, |
| #4 | #B4 | terminal #1 sun sensor | Signal, sun sensor | 0.78-4.62 V | 0.78-4.62 V | ECC, MCC (Ulow STD) |
| #5 | #B5 | terminal #5 sun sensor, terminal #5 air quality sensor | Signal ground, sun sensor, air quality sensor and alarm LED | Ulow | Ulow | Electronic climate control |
| #6 | #B6 | - | - | - | - | - |
| #7 | #B7 | - | - | - | - | - |
| #8 | #B8 | - | - | |||
| #9 | #B9 | - | - | |||
| #10 | #B10 | - | - | |||
| #11 | #B11 | terminal #3 damper motors | Signal ground, damper motor control MA1+ | ~Ulow | ~Ulow | |
| #12 | #B12 | terminal #4 damper motors | Signal ground, damper motor control MA1- | ~Ulow | ~Ulow | |
| #13 | #B13 | terminal #5 damper motors | Signal ground, damper motor control MA2+ | ~Ulow | ~Ulow | |
| #14 | #B14 | terminal #6 damper motors | Signal ground, damper motor control MA2- | ~Ulow | ~Ulow | |
| #15 | #B15 | terminal #3 evap | Signal ground, evaporator temperature sensor | ~Ulow | ~Ulow | Electronic climate control (ECC), Manual climate control (MCC) |
| #16 | #B16 | terminal #1, air quality sensor | Power supply, air quality sensor | 12 V | 12 V | Electronic climate control |
| #17 | #B17 | terminal #3 sun sensor | Signal, alarm LED (out). Internally directly connected to terminal #A7. | 1.9 V 1 Hz 10% duty | 1.9 V 1 Hz 10% duty | Electronic climate control |
| #18 | #B18 | terminal #1 damper motor temp left | Signal, damper motor temperature left | 0-Ubat | 0-Ubat | Quadratic signal when the motor is running |
| #19 | #B19 | terminal #1 damper motor temp right | Signal, damper motor temperature right | 0-Ubat | 0-Ubat | Quadratic signal when the motor is running |
| #20 | #B20 | #1 damper motor def | Signal, damper motor, defroster | 0-Ubat | 0-Ubat | Quadratic signal when the motor is operating (ECC, MCC) |
| #21 | #B21 | terminal #1 damper motor rec | Signal, damper motor recirculation | 0-Ubat | 0-Ubat | Quadratic signal when the motor is running |
| #22 | #B22 | terminal #1 damper motor floor/vent (ECC) terminal #1 damper motor air distribution (MCC, STD) |
Signal, damper motor floor/ventilation (ECC), air distribution (MCC, STD) | 0-Ubat | 0-Ubat | Quadratic signal when the motor is running |