GM Service Manual Online
For 1990-2009 cars only
Battery Voltage Signal - Inputs: The scan tool displays 0-16 Volts. The voltage measured between the module battery positive voltage and ground circuits.

Current: The scan tool displays 0-127.5 Amps. The amount of amps used by the selected seat motors during operation.

Driver Seat Front Vertical Sensor: The scan tool displays 0-5.0 Volts. The sensor potentiometer provides an analog voltage which varies directly with the seat front vertical position. High scan tool voltage values indicate that the front of the seat cushion is in the upward position while low voltage values indicate that the front of the seat cushion is in the downward position.

Driver Seat Horizontal Sensor: The scan tool displays 0-5.0 Volts. The sensor potentiometer provides an analog voltage which varies directly with the seat horizontal position. High scan tool voltage values indicate that the seat is in the forward position, while low voltage values indicate that the seat is in the rearward position.

Driver Seat Rear Vertical Sensor: The scan tool displays 0-5.0 Volts. The sensor potentiometer provides an analog voltage which varies directly with the seat rear vertical position. High scan tool voltage values indicate that the rear of the seat cushion is in the upward position while low voltage values indicate that the rear of the seat cushion is in the downward position.

Front Vertical Downward Switch - Inputs: The scan tool displays Active/Inactive. When the seat front vertical down switch is pressed, the scan tool will display the switch input to the driver position module as Active.

Front Vertical Motor Downward - Outputs: The scan tool displays Active/Inactive. When the seat front vertical down switch is pressed, the scan tool displays the seat front vertical motor control output from the driver position module as Active.

Front Vertical Motor Upward - Outputs: The scan tool displays Active/Inactive. When the seat front vertical up switch is pressed, the scan tool displays the seat front vertical motor control output from the driver position module as Active.

Front Vertical Upward Switch - Inputs: The scan tool displays Active/Inactive. When the seat front vertical up switch is pressed, the scan tool will display the switch input to the driver position module as Active.

Horizontal Forward Switch - Inputs: The scan tool displays Active/Inactive. When the seat horizontal forward switch is pressed, the scan tool will display the switch input to the driver position module as Active.

Horizontal Motor Forward - Outputs: The scan tool displays Active/Inactive. When the seat horizontal forward switch is pressed, the scan tool displays the seat horizontal motor control output from the driver position module as Active.

Horizontal Motor Rearward - Outputs: The scan tool displays Active/Inactive. When the seat horizontal rearward switch is pressed, the scan tool displays the seat horizontal motor control output from the driver position module as Active.

Horizontal Rearward Switch - Inputs: The scan tool displays Active/Inactive. When the seat horizontal rearward switch is pressed, the scan tool will display the switch input to the driver position module as Active.

Horizontal Value - Memory Data 1: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 1.

Horizontal Value - Memory Data 2: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 2.

Memory Recall Switches - Driver Door Switch Inputs: The scan tool displays Idle/Memory 1/Memory 2/Exit. When the memory function switch is pressed, the scan tool will momentarily display the switch input to the driver door switch assembly as selected.

Memory 1 Select Switch - Driver Position Module Inputs: The scan tool displays Active/Inactive. When the memory function switch is pressed, the scan tool will momentarily display the class 2 communication message from the driver door module to the memory module as Active.

Memory 2 Select Switch - Driver Position Module Inputs: The scan tool displays Active/Inactive. When the memory function switch is pressed, the scan tool will momentarily display the class 2 communication message from the driver door module to the memory module as Active.

Rear Vertical Downward Switch - Inputs: The scan tool displays Active/Inactive. When the seat rear vertical down switch is pressed, the scan tool will display the switch input to the driver position module as Active.

Rear Vertical Motor Downward - Outputs: The scan tool displays Active/Inactive. When the seat rear vertical down switch is pressed, the scan tool displays the seat rear vertical motor control output from the driver position module as Active.

Rear Vertical Motor Upward - Outputs: The scan tool displays Active/Inactive. When the seat rear vertical up switch is pressed, the scan tool displays the seat rear vertical motor control output from the driver position module as Active.

Rear Vertical Upward Switch - Inputs: The scan tool displays Active/Inactive. When the seat rear vertical up switch is pressed, the scan tool will display the switch input to the driver position module as Active.

Seat Front Vertical Exit Position - Memory Data Default: The scan tool displays 5.0 Volts. This parameter value is the default voltage value that is displayed for manufacturing purposes.

Seat Front Vertical Exit Position - Memory Data 1: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 1.

Seat Front Vertical Exit Position - Memory Data 2: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 2.

Seat Front Vertical Position - Memory Data 1: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 1.

Seat Front Vertical Position - Memory Data 2: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 2.

Seat Horizontal Exit Position - Memory Data Default: The scan tool displays 5.0 Volts. This parameter value is the default voltage value that is displayed for manufacturing purposes.

Seat Horizontal Exit Position - Memory Data 1: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 1.

Seat Horizontal Exit Position - Memory Data 2: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 2.

Seat Rear Vertical Exit Position - Memory Data Default: The scan tool displays 5.0 Volts. This parameter value is the default voltage value that is displayed for manufacturing purposes.

Seat Rear Vertical Exit Position - Memory Data 1: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 1.

Seat Rear Vertical Exit Position - Memory Data 2: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 2.

Seat Rear Vertical Position - Memory Data 1: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 1.

Seat Rear Vertical Position - Memory Data 2: The scan tool displays 0-5.0 Volts. This parameter displays the position sensor voltage value that is stored in memory for driver 2.