Data Link Communications System Check. Isuzu S/T Isuzu

For 1990-2009 cars only

Makes 🢒 Isuzu 🢒 1999 🢒 S/T Isuzu - 4WD 🢒 Body and Accessories 🢒 Data Link Communications 🢒 Data Link Communications System Check

Step	Action	Normal Result(s)	Abnormal Result(s)*
1	Connect the Scan Tool to the Data Link Connector (DLC). Using the scan tool, read UART Data Signals. Refer to the Scan Tool Users Manual	The scan tool reads the UART data signals. Refer to the Scan Tool Users Manual	Scan Tool Does Not Communicate with UART Data Line
2	Connect the Scan Tool to the DLC. Using the scan tool, read the class 2 data lines. Refer to the Scan Tool Users Manual	The scan tool reads the class 2 data lines. Refer to the Scan Tool Users Manual	Scan Tool Does Not Communicate with Class 2 Data Line
3	Connect the Scan Tool to the Data Link Connector (DLC). Using the scan tool, communicate with any of the components connected to the DLC. Refer to the Scan Tool Users Manual	The scan tool communicates with all of the components that are connected to the DLC. Refer to the Scan Tool Users Manual	Scan Tool Does Not Communicate with Components
* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.