High-Speed Controller Area Network (HS-CAN)

WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

This vehicle utilizes a communication system called a high-speed control area network (HS-CAN). The HS-CAN consists of a twisted pair of wires connected to some of the following:

Instrument cluster module
PCM
Restraints control module (RCM)
Occupant classification system module (OCSM)
Data link connector (DLC)

The HS-CAN circuits use a bias voltage of approximately 2.5 volts, one is a positive 2.5 volts while the other is a negative 2.5 volts. The HS-CAN also uses 2 terminating resistors, one contained within the PCM, the other in the instrument cluster module. The terminating resistors are not serviced separately. The terminating resistors have a value of 120 ohms each, for a normal operating system total of 60 ohms. The HS-CAN may operate with only one terminating resistor and may communicate with only one circuit functioning (depending on the circuit fault), at a reduced rate of performance. Refer to MODULE COMMUNICATIONS NETWORK article.