GM Service Manual Online
For 1990-2009 cars only
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