Description & Operation: Notes
WARNING: This page is about a different car, the 1997 Lincoln Mark VIII. However, it is still accessible from the selected car via links, so may be relevant.
The module communications network provides the ability for a module-to-module communication by sharing inputs and outputs instead of each component having an input and output wired directly to each module. A BUS which consists of a pair of twisted wires is used to transfer information between each module. The BUS consists of a (+) circuit No. 914 and a (-) circuit No. 915. The BUS is routed throughout the vehicle to each module except the Passenger's Seat Module (PSM). See Fig 1
. The PSM does not use the BUS to communicate with other modules. 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.
NOTE:
Terminal No. 7 (Light Blue/White wire) on DLC goes directly to Passenger's Seat Module (PSM). This wire is referred to as the ISO 9141 communication link circuit No. 70 and provides a means for the scan tester to communicate with the PSM by using the DLC.
COMPONENT LOCATIONS
| Component |
Location |
| Anti-Lock Brake System (ABS) Control Module |
Below Battery Tray At Driver's Side Front Corner Of Engine Compartment |
| Cellular Phone Module (CPM) |
In Trunk, On Panel Below Rear Window |
| Data Link Connector (DLC) |
Below Driver's Side Of Instrument Panel, To Right Of Steering Column |
| Driver's Door Module (DDM) |
Inside Driver's Door |
| Driver's Seat Module (DSM) |
Below Driver's Side Front Seat |
| Electronic Automatic Temperature Control (EATC) Module |
On A/C Evaporator Core Housing At Passenger's Side Of Vehicle |
| Hybrid Electronic Instrument Cluster (HEIC) |
Center Of Driver's Side Instrument Panel |
| Message Center (MC) Indicator Module |
Center Of Instrument Panel |
| Passenger's Seat Module (PSM) |
Below Passenger's Side Front Seat |
| Powertrain Control Module (PCM) |
Below Driver's Side Of Instrument Panel, To Left Of Steering Column |
| Steering Column/Ignition/Lighting Control (SCIL) Module |
Behind Passenger's Side Of Instrument Panel, To Right Of Glove Box |
| Variable Load Control Module (VLCM) |
Behind Passenger's Side Front Fender, In Front Of Wheel Opening |
Courtesy of FORD MOTOR CO.