Data Link Communications System Check. Buick Park Avenue 1998

For 1990-2009 cars only

Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 Body and Accessories 🢒 Theft Deterrent 🢒 Data Link Communications System Check

Step	Action	Normal Result(s)	Abnormal Result(s)*
1	Connect a scan tool to the data link connector (DLC). Set the ignition switch to RUN. Attempt to establish communications with the class 2 serial data line.	The scan tool communicates with the class 2 serial data line.	Scan Tool Does Not Communicate with Class 2 Data Line
2	Attempt to establish communications with the E&C serial data line.	The scan tool communicates with the E&C serial data line.	Scan Tool Does Not Communicate with E and C Data Line
* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.