1

1. Connect a scan tool to the data link connector (DLC).
2. Turn the ignition switch to the RUN position.
3. Turn on the scan tool.

Scan Tool turns on

Scan Tool Inoperative

2

Use a scan tool in order to communicate with the inflatable restraint sensing and diagnostic module (SDM), the EBCM (if equipped) and the PCM.

Communication is established between the scan tool and the modules.

Scan Tool Does Not Communicate with UART Data Line

3

Use a scan tool in order to communicate with the Powertrain Control Module (PCM) Class II serial data line.

Communication is established between the scan tool and the PCM.

Scan Tool Does Not Communicate with Class 2 Data Line

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.