Signal Specification

Signal Specification

General
All the values given below are between the terminals stated in column 1 and terminal #A16 in column 2 (signal ground). This applies unless otherwise indicated in brackets.

NOTE: It is important to connect the breakout box and check the ground terminals before taking readings.

For further information about:

- connection of breakout box, see " Connecting breakout box, Climate Control Module (CCM)"
- checking the ground point, "Checking the voltage/ground connection, climate control module (CCM)".

There may be several connections and connectors between the control module and components. For further information about these, see the wiring diagram.







U = DC voltage in volts (V)
U(bat) = Battery voltage (V)
U(low) = Voltage approximately 0 V
PWM = Pulse width modulated signal in %
U(AC) = AC voltage in volts (V)
f = Frequency in Hertz (Hz)
t = Time in seconds