cadillac Workshop Repair Guides

Cadillac Workshop Service and Repair Manuals

Assembly Line Diagnostic Link (ALDL) Connector|Page 2685 > < Assembly Line Diagnostic Link (ALDL) Connector <--> [Data Link Connector]|Diagrams
Page 1
background image

Assembly Line Diagnostic Link (ALDL) Connector: Description and Operation
Assembly Line Diagnostic Link (ALDL) Connector

ALDL Connector

PURPOSE

Serial Data is a single wire line that the Powertrain Control Module (PCM) uses to communicate and share information with other systems.

OPERATION

A Serial Data line is part of the ALDL connector and is used for hookup of test equipment. 

Assembly Line Diagnostic Link (ALDL) Connector|Page 2685 > < Assembly Line Diagnostic Link (ALDL) Connector <--> [Data Link Connector]|Diagrams