Mustang Cobra V8-281 4.6L DOHC VIN V MFI (1997)
Multiplex Communication Network: Description and Operation
ISO 9141 Communication Link
ISO 9141 Communication Link
The ISO 9141 communication link:
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consists of a single wire, Circuit 70 (LB/W).
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provides a common link for communication to an off-board tester through the Data Link Connector (DLC) located under the instrument panel to
the right of the steering column.
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does not allow module-to-module communications. One micro-processor based subsystem is included on this network:
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supplemental air bag system
Fault Tolerance
The 1509141 communication link will fail if any of the following occur:
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Circuit 70 (LB/W) shorted to ground.
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Circuit 70 (LB/W) shorted to battery positive voltage (B+).
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the air bag diagnostic monitor loses power or ground supply.
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a module failure shorts the 1809141 communication link internally.
Purpose
The information within this section is designed to diagnose 1S0 9141 communication link concerns. These concerns may:
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affect normal functional operations of the vehicle.
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be directly related to customer concerns.
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be undetectable except during diagnostics. To properly diagnose a link concern, follow the diagnostic procedure described in this section in the
order presented.
Module Identification
Modules included on this 1809141 communication link include:
Air bag diagnostic monitor:
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located behind the instrument panel on the tunnel of the floorpan.
