Terminating resistor
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
A = Master node
B = Slave node
C = Transmitter/receiver
LIN is terminated to the battery voltage on each node via a pull-up resistance
The master node is terminated with 1 kΩ and the slave nodes with 30 kΩ.
The termination resistance forms a parallel circuit and the resistance to the battery voltage depends on the number of connected nodes. The resistance to ground should be infinite or at least extremely large if no communications are in progress.