For 1990-2009 cars

Table 1: | Driver Door Module (DDM)
Table 2: | Driver Door Switch Assembly (DDSA)
Table 3: | Left Rear Door Module (LRDM)
Table 4: | Passenger Door Module (PDM)
Table 5: | Right Rear Door Module (RRDM)

#### Driver Door Module (DDM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Battery power is the only requirement for Module Information, Inputs and Lock Outputs. Key ON is required for window outputs.
8-Digit GM Part Number | ECU Identification Information | Number | Varies
Battery Voltage Signal | Data | 9-15 Volts | 12.8 Volts
Component Serial No. 13-16 | ECU Identification Information | Number | 13-16th digit
Deadbolt Actuator Command | Data | Idle/Unlock/Lock/Invalid | Idle
Door Ajar Switch | Data | Door Closed/Door Ajar | Door Closed
Door Cylinder Switch | Data | Idle/Unlock/Lock/Invalid | Idle
Door Open Switch | Data | Closed/Open | Closed
Driver Door Handle | Data | Inactive/Active | Inactive
Driver Mirror Heater | Data | Inactive/Active | Inactive
Driver Mirror Horizontal Position | Data | Volts | Varies
Driver Mirror Vertical Position | Data | Volts | Varies
Driver Mirror Motor Command | Data | Idle/Fold Out/ Fold In/Left/Right/Down/Up | Idle
Door Switch Backlight | Data | % | Varies
Exterior Courtesy Lamp | Data | % | Varies
Exterior Courtesy Lamp Status | Data | ON/OFF | OFF
Julian Date of Build | ECU Identification Information | Number | Varies
LF Latch Solenoid Command | Data | Inactive/Active | Inactive
Door Lock Indicator Command | Data | % | Varies
Door Lock Switch Indicator Command | Data | ON/OFF | OFF
VIN Learned | VIN Information | Yes/No | Yes
VIN Message Received | VIN Information | Yes/No | Yes
Window Motor Command | Data | Idle/Up/Down/Active | Idle
Window Normalization | Data | No/Yes | No
Year Model Built | ECU Identification Information | Number | Varies

#### Driver Door Switch Assembly (DDSA)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Battery power is the only requirement for Module Information, Inputs and Lock Outputs. Key ON is required for window outputs.
8-Digit GM Part Number | ECU Identification Information | Number | Varies
Battery Voltage Signal | Data | 9-15 Volts | 12.8 Volts
Component Serial No. 13-16 | ECU Identification Information | Number | 13-16th digit
Lock Switch | Data | Idle/Lock/Unlock/Invalid | Idle
Driver LF Window Switch | Data | Idle/Up/ Down/Express Up/Express Down/Invalid | Idle
Driver LR Window Switch | Data | Idle/Up/ Down/Express Up/Express Down | Idle
Driver RF Window Switch | Data | Idle/Up/ Down/Express Up/Express Down | Idle
Driver RR Window Switch | Data | Idle/Up/ Down/Express Up/Express Down | Idle
Julian Date of Build | ECU Identification Information | Number | Varies
Mirror Switches | Data | Idle/Up/Down/Left/Right | Idle
Mirror Fold Switch | Data | Inactive/Active | Inactive
Mirror Select Switch | Data | Driver/Off/Passenger | Off
Trunk Release Switch | Data | Inactive/Active | Inactive
Window Lockout Switch Indicator Command | Data | Inactive/Active | Inactive
Window Lockout Switch | Data | Off/On | Off
Year Module Built | ECU Identification Information | Number | Varies

#### Left Rear Door Module (LRDM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Battery power is the only requirement for Module Information, Inputs and Lock Outputs. Key ON is required for window outputs.
8-Digit GM Part Number | ECU Identification Information | Number | Varies
Battery Voltage Signal | Data | 9-15 Volts | 12.8 Volts
Component Serial No. 13-16 | ECU Identification Information | Number | 13-16th digit
Deadbolt Actuator Command | Data | Idle/Unlock/Lock/Invalid | Idle
Door Ajar Switch | Data | Door Closed/Door Ajar | Door Closed
Door Lock Actuator Command | Data | Idle/Lock/Unlock/Invalid | Idle
Door Open Switch | Data | Closed/Open | Closed
Door Switch Backlight | Data | % | Varies
Julian Date of Build | ECU Identification Information | Number | Varies
VIN Learned | VIN Information | Yes/No | Yes
VIN Message Received | VIN Information | Yes/No | Yes
Window Motor Command | Data | Idle/Down/Up/Active | Idle
Window Normalization | Data | No/Yes | No
Window Switch | Data | Idle/Up/Down/Express Up/Express Down/Invalid | Idle
Year Module Built | ECU Identification Information | Number | Varies

#### Passenger Door Module (PDM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Battery power is the only requirement for Module Information, Inputs and Lock Outputs. Key ON is required for window outputs.
8-Digit GM Part Number | ECU Identification Information | Number | Varies
Battery Voltage Signal | Data | 9-15 Volts | 12.8 Volts
Component Serial No. 13-16 | ECU Identification Information | Number | 13-16th digit
Deadbolt Actuator Command | Data | Idle/Unlock/Lock/Invalid | Idle
Door Ajar Switch | Data | Door Closed/Door Ajar | Door Closed
Lock Switch | Data | Idle/Lock/Unlock/Invalid | Idle
Door Open Switch | Data | Closed/Open | Closed
Door Switch Backlight | Data | % | Varies
Exterior Courtesy Lamp | Data | % | Varies
Exterior Courtesy Lamp Status | Data | Off/On | OFF
Door Lock Indicator Command | Data | % | Varies
Door Lock Switch Indicator Command | Data | Off/On | Off
Passenger Door Handle | Data | Inactive/Active | Inactive
Psgr. Mirror Heater | Data | Inactive/Active | Inactive
Psgr. Mirror Horizontal Position | Data | Volts | Varies
Psgr. Mirror Motor Command | Data | Idle/Fold Out/Fold In/Left/Right/Down/up | Idle
Psgr. Mirror Vertical Position | Data | Volts | Varies
Julian Date of Build | ECU Identification Information | Number | Varies
RF Latch Solenoid Command | Data | Inactive/Active | Inactive
VIN Learned | VIN Information | Yes/No | Yes
VIN Message Received | VIN Information | Yes/No | Yes
Window Motor Command | Data | Idle/Down/Up/Active | Idle
Window Switch | Data | Idle/Up/Down/Express Up/Express Down/Invalid | Idle
Window Normalization | Data | No/Yes | No
Year Module Built | ECU Identification Information | Number | Varies

#### Right Rear Door Module (RRDM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Battery power is the only requirement for Module Information, Inputs and Lock Outputs. Key ON is required for window outputs.
8-Digit GM Part Number | ECU Identification Information | Number | Varies
Battery Voltage Signal | Data | 9-15 Volts | 12.8 Volts
Component Serial No. 13-16 | ECU Identification Information | Number | 13-16th digit
Deadbolt Actuator Command | Data | Idle/Lock/Unlock/Invalid | Idle
Door Ajar Switch | Data | Door Closed/Door Ajar | Door Closed
Door Lock Actuator Command | Data | Idle/Lock/Unlock/Invalid | Idle
Door Open Switch | Data | Closed/Open | Closed
Door Switch Backlight | Data | % | Varies
Julian Date of Build | ECU Identification Information | Number | Varies
VIN Learned | VIN Information | Yes/No | Yes
VIN Message Received | VIN Information | Yes/No | Yes
Window Motor Command | Data | Idle/Down/UP/Active | Idle
Window Normalization | Data | No/Yes | No
Window Switch | Data | Idle/Up/Down/Express Up/Express Down/Invalid | Idle
Year Module Built | ECU Identification Information | Number | Varies