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's 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 Front Vertical Sensor: The scan tool displays 0-255 Counts. The sensor potentiometer provides an analog count value which varies directly with the seat front vertical position. High scan tool count values indicate that the front of the seat cushion is in the upward position, while low count 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 Horizontal Sensor: The scan tool displays 0-255 Counts. The sensor potentiometer provides an analog count value which varies directly with the seat horizontal position. High scan tool count values indicate that the seat is in the forward position, while low count 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.

Driver Seat Rear Vertical Sensor: The scan tool displays 0-255 Counts. The sensor potentiometer provides an analog count value which varies directly with the seat rear vertical position. High scan tool count values indicate that the rear of the seat cushion is in the upward position, while low count values indicate that the rear of the seat cushion is in the downward position.

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

Driver Seat Recline Sensor: The scan tool displays 0-255 Counts. The sensor potentiometer provides an analog count value which varies directly with the seat recline position. High scan tool count values indicate that the seat recline is forward, while low count values indicate that the seat recline is rearward.

Drvr. Seat Front Vertical Motor Command - Outputs: The scan tool displays Inactive/Upward/Downward. When the seat front vertical switch is pressed, the scan tool displays the seat front vertical motor control output from the driver position module as selected, Upward or Downward.

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

Drvr. Seat Horizontal Motor Command - Outputs: The scan tool displays Inactive/Forward/Rearward. When the seat horizontal switch is pressed, the scan tool displays the seat horizontal motor control output from the driver position module as selected, Forward or Rearward.

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

Drvr. Seat Rear Vertical Motor Command - Outputs: The scan tool displays Inactive/Upward/Downward. When the seat rear vertical switch is pressed, the scan tool displays the seat rear vertical motor control output from the driver position module as selected, Upward or Downward.

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

Drvr. Seat Recline Motor Command - Outputs: The scan tool displays Inactive/Forward/Rearward. When the seat recline switch is pressed, the scan tool displays the seat recline motor control output from the driver position module as selected, Forward or Rearward.

Drvr. Seat Recline Switch - Inputs: The scan tool displays Inactive/Forward/Rearward. When the seat recline switch is pressed, the scan tool will display the switch input to the driver position module as selected, Forward or Rearward.

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 1: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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.

Horizontal Value - Memory Data 2: The scan tool displays 0-255 Counts. This parameter displays the position sensor count value that is stored in memory for driver 2.

Memory Switch - Inputs: The scan tool displays Inactive/Memory 1/Memory 2/Exit. When the memory function switch is pressed, the scan tool will momentarily display the switch input to the driver position module as selected.

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 Default: The scan tool displays 255 Counts. This parameter value is the default count 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 1: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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 Exit Position - Memory Data 2: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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 1: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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 Front Vertical Position - Memory Data 2: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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 Default: The scan tool displays 255 Counts. This parameter value is the default count 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 1: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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 Horizontal Exit Position - Memory Data 2: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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 Default: The scan tool displays 255 Counts. This parameter value is the default count 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 1: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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 Exit Position - Memory Data 2: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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 1: The scan tool displays 0-255 Counts. This parameter displays the position sensor count 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.

Seat Rear Vertical Position - Memory Data 2: The scan tool displays 0-255 Counts. This parameter displays the position sensor count value that is stored in memory for driver 2.

Seat Recline 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 Recline Exit Position - Memory Data Default: The scan tool displays 255 Counts. This parameter value is the default count value that is displayed for manufacturing purposes.

Seat Recline 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 Recline Exit Position - Memory Data 1: The scan tool displays 0-255 Counts. This parameter displays the position sensor count value that is stored in memory for driver 1.

Seat Recline 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 Recline Exit Position - Memory Data 2: The scan tool displays 0-255 Counts. This parameter displays the position sensor count value that is stored in memory for driver 2.

Seat Recline 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 Recline Position - Memory Data 1: The scan tool displays 0-255 Counts. This parameter displays the position sensor count value that is stored in memory for driver 1.

Seat Recline 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 Recline Position - Memory Data 2: The scan tool displays 0-255 Counts. This parameter displays the position sensor count value that is stored in memory for driver 2.

Seat Temp. Status - HVAC: The scan tool displays Off/High Heat/Low Heat/High Cool/Low Cool. When the heated/cool seat switch is pressed once, the scan tool will display High Heat, pressed a second time it displays Low Heat, pressed a third time it displays High Cool. pressed a fourth time it displays Low Cool, and after the switch is pressed a fifth time, the scan tool displays Off.