GM Service Manual Online
For 1990-2009 cars only
Module Information 1 -- PROM: This displays the four digit number of the PROM incorporated into the Driver Door Module (DDM).

Module Information 1 -- Calibration ID: This displays the calibration or program revision level used in the PROM.

Module Information 1 -- Julian Date Of Build: This displays the day of the year the module was built

Module Information 1 -- Year Module Built: This displays the four digit year of build.

Module Information 2 -- 8 Digit GM Part Number: This displays the part number for the DDM.

Module Information 2 -- Component Serial #: This is the first partition of the serial number.

Module Information 2 -- Component Serial #: This is the second partition of the serial number.

Module Information 2 -- Component Serial #: This is the third partition of the serial number.

Module Information 2 -- Component Serial #: This is the last partition of the serial number.

Data Display -- Inputs -- Lt. Vertical Mirror Pos.: Displays feedback voltage (0.25 - 4.75 V).

Data Display -- Inputs -- Lt. Horiz. Mirror Pos.: Displays feedback voltage (0.25 - 4.75 V).

Data Display -- Inputs --Rt. Vertical Mirror Pos.: Displays feedback voltage (0.25 - 4.75 V).

Data Display -- Inputs -- Rt. Horiz. Mirror Pos.: Displays feedback voltage (0.25 - 4.75 V).

Data Display -- Inputs -- Driver Door Lock Sw.: Displays switch position.

Data Display -- Inputs -- Driver LF Window Sw.: Displays switch position.

Data Display -- Inputs -- Driver RF Window Sw.: Displays switch position.

Data Display -- Inputs -- Driver RR Window Sw.: Displays switch position.

Data Display -- Inputs -- Driver LR Window Sw.: Displays switch position.

Data Display -- Inputs -- Window Lockout Sw.: Displays switch position.

Data Display -- Inputs -- Driver Mirror Switches: Displays switch position.

Data Display -- Inputs -- Driver Mirror Selectors: Displays switch position.

Data Display -- Inputs -- Driver Door Cylinder Sw.: Displays switch position.

Data Display -- Inputs -- Driver Door Ajar Sw.: Displays switch position.

Data Display -- Inputs -- Driver Dome/Buzzer Sw.: Displays switch position.

Data Display -- Inputs -- Pass. Door Lock Sw.: Displays switch position.

Data Display -- Inputs -- Pass. Door Window Sw.: Displays switch position.

Data Display -- Inputs -- Pass. Door Ajar Sw.: Displays switch position.

Data Display -- Inputs -- Pass. Door Cylinder Sw.: Displays switch position.

Data Display -- Inputs -- Pass. Dome/Buzzer Sw.: Displays switch position.

Data Display -- Inputs -- Lt, Rear Door Window Sw.: Displays switch position.

Data Display -- Inputs -- Lt. Rear Door Ajar Sw.: Displays switch position.

Data Display -- Inputs -- Lt. Rear Door Dome/Buzzer Sw.: Displays switch position.

Data Display -- Inputs -- Rt. Rear Door Window Sw.: Displays switch position.

Data Display -- Inputs -- Rt. Rear Door Ajar Sw.: Displays switch position.

Data Display -- Inputs -- Rt. Rear Dome/Buzzer Sw.: Displays switch position.

Data Display -- Outputs, Key Off -- Driver Door Lock Output: Displays output state.

Data Display -- Outputs, Key Off -- Pass. Door Lock Output: Displays output state.

Data Display -- Outputs, Key Off -- LR Door Lock Output: Displays output state.

Data Display -- Outputs, Key Off -- RR Door Lock Output: Displays output state.

Data Display -- Outputs, Key On -- Driver Door Window Output: Displays output state.

Data Display -- Outputs, Key On -- Driver Door Window Output: Displays output state.

Data Display -- Outputs, Key On -- LR Door Window Output: Displays output state.

Data Display -- Outputs, Key On -- RR Door Window Output: Displays output state.

Special Function -- Mirror Test -- Driver: Commands output state and intended mirror direction. All four directions and heater commandable.

Special Function -- Mirror Test -- Passenger: Commands output state and intended mirror direction. All four directions and heater commandable.

Special Function -- Lock Test -- (Door Specific): Commands output states of Lock and Unlock to each individual door lock actuator.

Special Function -- Window Test -- (Door Specific): Commands output states of Up and Down to each individual widow actuator motor.