Corsica V6-3100 3.1L VIN M SFI (1996)
Serial Data: Component Tests and General Diagnostics
Circuit Operation
There are three modules which may be accessed with a Tech 1 Scan Tool through the Data Link Connector. The 800 CKT provides a path that allows the
Scan Tool to read data from the Powertrain Control Module
(PCM), Diagnostic Energy Reserve Module (DERM), and the Electronic Brake Control
Module
(EBCM). After communication is established, system operations can then be monitored for diagnostic purposes. The Serial Data Line (Class 2)
allows a scan tool to directly access the Powertrain Control Module (PCM) to read emissions related data.
System Diagnosis
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Perform the
System Check and refer to the Symptom Table for the appropriate diagnostic procedures.
Chart #1 Serial Data Line Diagnosis (Part 1 Of 2)