The data link connector (DLC) contains the following components:
| • | The UART serial data line (CKT 800) |
| - | The UART serial data line (CKT 800) allows the following
components to communicate data with each other: |
| • | The powertrain control module (PCM) |
| • | The inflatable restraint diagnostic energy reserve module with
sensor |
| • | The electronic brake control module (EBCM) |
| - | The UART serial data line allows a scan tool to communicate with
these modules for diagnosis and testing. |
| • | The class 2 serial data line (CKT 1807) |
| | The class 2 serial data line allows a scan tool to communicate
with the PCM for diagnosis and testing. |
| • | Unswitched voltage (B+) (CKT 640) |
| • | The theft deterrent module test light output (CKT 728)
(SEO equipped vehicles only) |
| | The theft deterrent module test light output allows a test lamp or a
scan tool to monitor the theft deterrent module. |
