Diagnostic System Check

Install scan tool. If scan tool powers up, go to next step. If scan tool does not power up, perform appropriate diagnostic procedure. See SELF-DIAGNOSTIC SYSTEM in appropriate BODY CONTROL MODULES article.
Turn ignition on, engine off. Following scan tool manufacturer's instructions, attempt to establish communication with Driver Door Module (DDM), Passenger Front Door Module (PFDM), Left Middle Door Module (LMDM), Right Middle Door Module (RMDM), Left Rear Door Module (LRDM), Right Rear Door Module (RRDM), Driver Door Switch Assembly (DDSA), Instrument Panel Cluster (IPC), Powertrain Control Module (PCM), Rear Integration Module (RIM) and Remote Function Actuator (RFA) module. If communication with all modules is established, go to next step. If communication with any module is not established, diagnose communication problem with class 2 device. See SELF-DIAGNOSTIC SYSTEM in appropriate BODY CONTROL MODULES article.
Select display DTC function for DDM, PDFM, LMDM, RMDM, LRDM, RRDM, DDSA, IPC, PCM, RIM and RFA module. Record all displayed DTCs, status of displayed DTCs and module that set the DTC. If DTCs are displayed, perform appropriate test. See DIAGNOSTIC TROUBLE CODE INDEX table. If no DTCs are displayed, perform system operation check. See SYSTEM OPERATION CHECK under TROUBLE SHOOTING.

DIAGNOSTIC TROUBLE CODE INDEX

DTC

Description

B1004, B1007, B1009, B1327 Or B1328

⁽¹⁾

Horizontal Position Sensor Out Of Range/Open

Vertical Position Sensor Out Of Range/Open

Switch Input Shorted to Ground

Switch Input Shorted to Ground

Switch Input Shorted to Ground

Switch Input Shorted to Ground

UXXXX

⁽²⁾

⁽¹⁾	See appropriate BODY CONTROL MODULES article.

⁽²⁾	For any DTC beginning with the letter "U", diagnose communication problem with class 2 device. See SELF-DIAGNOSTIC SYSTEM in appropriate BODY CONTROL MODULES article.