For 1990-2009 cars

Step | Action | Normal Results | Abnormal Results*
--- | --- | --- | ---
1 | Connect the scan tool to the vehicle. | The scan tool can interface with the ABS and operate correctly. | Scan Tool Does Not Communicate with EBCM
2 | Connect the scan tool to the vehicle. | The scan tool can interface with the non- ABS systems and operate correctly. |

• | Scan Tool Does Not Communicate with Components

• | Scan Tool Does Not Communicate with UART Data Line

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