FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Diagnostic Connector - ABS: Description and Operation

Circuits D1 and D2 are connected from the Anti-Lock Brake System (ABS) control module to the CCD Bus. This allows access from the [1][2]data link connector to the control module diagnostics. Circuit D1 is used for CCD(+) and circuit D2 is used for CCD(-).