Power Door Serial Data Circuit

The power door serial data circuit does not communicate with the scan tool via the DLC. The power door serial data information is interpreted by the Driver Door Module (DDM) and transmitted on the Class 2 data link by the DDM.

The door system serial data circuit is used for serial data communication between the four door modules as well as the Driver Door Switch Assembly (DDSA). Refer to Diagnostic System Check - Door Systems in Doors.

"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes