Diagnostics & Serial Communications

DIAGNOSTICS
The PCM monitors the input and output signals to determine if the system is operating properly, or if a problem has occurred. Problem information will be stored for each individual failure for diagnostic and service procedures.

Data Link Connector (DLC):

SERIAL COMMUNICATIONS
Serial communications are used for communicating with diagnostic equipment, e.g. Scan Tool. The terminal used for external testing devices is the Data Link Connector (DLC).