Description & Operation
The module communications network provides the capability for 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 modules. The BUS consists of a (+) circuit No. 914 and a (-) circuit No. 915. The BUS is routed only to the Powertrain Control Module (PCM). 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 modules. DTC may be used for system diagnosis.
NOTE:
Terminal No. 7 (Orange wire) of the DLC goes directly to Remote Anti-Theft Personality (RAP) module and Anti-Lock Brake (ABS) module. 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 Remote Anti-Theft Personality (RAP) module and Anti-Lock Brake (ABS) module by using the DLC.
COMPONENT LOCATIONS
| Component |
Location |
| Anti-Lock Brake (ABS) Module |
Under Front Passenger's Seat |
| Data Link Connector (DLC) |
Below Driver's Side Of Instrument Panel, To Left Of Steering Column |
| Remote Anti-Theft Personality (RAP) Module |
|
| Powertrain Control Module (PCM) |
Under Center Console |