ISO 9141 Communication Link
The Generic Electronic Module (GEM), Anti-lock Brake System (ABS) control module, Remote Anti-theft Personality (RAP) module, air bag diagnostic monitor and Semi-Active Ride Control (SARC) module are connected to the ISO 9141 communication link. The ISO 9141 communication link is not a true network in the fact that the modules can only communicate with a scan tool connected to Data Link Connector (DLC) and cannot communicate with the other modules.
The ISO 9141 communication link circuit consists of a single Light Blue/White wire routed throughout vehicle. See Fig 1 . Data is transferred only from each module to scan tool. If the Light Blue/White wire becomes open or shorted, or if a module fails, communication link will fail.
COMPONENT LOCATIONS
| Component | Location |
|---|---|
| ABS Module | Under Battery In Engine Compartment |
| Air Bag Diagnostic Monitor | In Center Of Instrument Panel |
| GEM | On Rear Of Fuse Panel |
| PATS Module | Behind integrated Control Panel |
| PCM | On Right Side Of Firewall In Engine Compartment |
| RAP Module | In Center Of Instrument Panel |
| RCC Module | On A/C Evaporator Case |
| SARC Module | Right Side Of Luggage Compartment |