Description & Operation
Vehicle has 2 module communications networks. The Powertrain Control Module (PCM) is connected to the multiplex communications network through a pair of twisted wires or BUS. The BUS network is also referred to as Standard Corporate Protocol (SCP). The BUS consists of a (+) circuit and a (-) circuit (circuit No. 914 and 915 respectively).
The air bag diagnostic monitor and all other optional modules, the Generic Electronic Module (GEM), Remote Anti-Theft Personality (RAP) module and 4-Wheel Anti-Lock Brake System (4WABS) module, are connected to the International Standards Organization (ISO) 9141 diagnostic communications network through a single wire (circuit No. 70). Both networks are connected to the Data Link Connector (DLC). This article is used to diagnose BUS and ISO communications network circuit faults. For module locations, see COMPONENT LOCATIONS table.
| Component | Location | ||
|---|---|---|---|
| Air Bag Diagnostic Monitor (1) | Behind Right Kick Panel | ||
| Data Link Connector (DLC) | Below Driver's Side Of Instrument Panel, To Right Of Steering Column | ||
| Generic Electronic Module (GEM) | Behind Center Of Instrument Panel | ||
| Remote Anti-Theft Personality (RAP) Module | Left Rear Corner Of Cab | ||
| Powertrain Control Module (PCM) | Mounted Through Firewall, On Passenger's Side | ||
| 4-Wheel Anti-Lock Brake System (4WABS) Module | Left Side Of Engine Compartment | ||
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