Module Communication Network

Vehicle has 2 module communications networks. The Powertrain Control Module (PCM) and Anti-Lock Brake System Traction Control (ABS/TC) module (if equipped with traction control) are connected to the multiplex communications network through a pair of twisted wires or BUS. The BUS consists of + circuit and - circuit (circuit No. 914 and 915 respectively). The air bag diagnostic monitor and all other optional modules, the Generic Electronic Module (GEM) and Anti-Lock Brake System (ABS) control module (on models not equipped withtraction control), are connected to the ISO 9141 diagnostic communications network through a single wire (circuit No. 70). Both networks are connected to the Data Link Connector (DLC).

For module locations, see COMPONENT LOCATIONS TABLE. In the event that a system failure exists, a Diagnostic Trouble Code (DTC) will be stored in the module. A New Generation Star (NGS) scan tester and Data Link Connector (DLC) may be used for retrieving and clearing DTCs from the module. DTC may be used for system diagnosis.

Fig 1: Identify Module Communication Network & Link Layouts

Courtesy of FORD MOTOR CO.

Fig 2: Identifying Module Component Locations

Courtesy of FORD MOTOR CO.