GM Service Manual Online
For 1990-2009 cars only

Driver Seat Module

Battery Voltage: The scan tool displays the voltage level of the battery voltage supply circuit to the memory seat module.

Driver Heated Seat Status: The scan tool displays Off, High, Med, or Low depending on the current heat level operating mode.

Passenger Heated Seat Status: The scan tool displays Off, High, Med, or Low depending on the current heat level operating mode.

Driver Seat Heat Zone: The scan tool displays Off, Back Only, or Back and Cushion depending on the current heat zone operating mode.

Psgr. Seat Heat Zone: The scan tool displays Off, Back Only, or Back and Cushion depending on the current heat zone operating mode.

Drvr. Seat Heat Sensor: The scan tool displays 0.0 to 5.0 volts. The voltage displayed is an input to the memory seat module from the driver seat heat sensor.

Psgr. Seat Heat Sensor: The scan tool displays 0.0 to 5.0 volts. The voltage displayed is an input to the memory seat module from the passenger seat heat sensor.

Software Part Number: The scan tool displays the software identification number in the memory seat module.

Software Design Suffix: The scan tool displays the version of the software part number in the memory seat module.

Driver Door Module

Heated Seat Switch: The scan tool displays Active or Inactive. When the heated seat cushion switch is pressed the scan tool displays Active.

Heat Indicator Low: The scan tool displays On or Off. The scan tool displays the current status of the low heat operating mode determined by the heated seat switch signal circuit inputs to the driver door module.

Heat Indicator Medium: The scan tool displays On or Off. The scan tool displays the current status of the medium heat operating mode determined by the heated seat switch signal circuit inputs to the driver door module.

Heat Indicator High: The scan tool displays On or Off. The scan tool displays the current status of the high heat operating mode determined by the heated seat switch signal circuit inputs to the driver door module.

Back Only Heat Indicator: The scan tool displays On or Off. The scan tool displays the current status of the heated seat back only operating mode determined by the heated seat switch signal circuit inputs to the driver door module.

Back Only Heat Switch: The scan tool displays Active or Inactive. When the heated seat back switch is pressed the scan tool displays Active.

Heat Indicator Low: The scan tool displays On or Off. Whenever the low heat indicator is commanded on by the driver door module the scan tool displays On.

Heat Indicator Medium: The scan tool displays On or Off. Whenever the medium heat indicator is commanded on by the driver door module the scan tool displays On.

Heat Indicator High: The scan tool displays On or Off. Whenever the high heat indicator is commanded on by the driver door module the scan tool displays On.

Back Only Heat Indicator: The scan tool displays On or Off. Whenever the heated seat back only indicator is commanded on by the driver door module the scan tool displays On.

Passenger Door Module

Heated Seat Switch: The scan tool displays Active or Inactive. When the heated seat cushion switch is pressed the scan tool displays Active.

Heat Indicator Low: The scan tool displays On or Off. The scan tool displays the current status of the low heat operating mode determined by the heated seat switch signal circuit inputs to the passenger door module.

Heat Indicator Medium: The scan tool displays On or Off. The scan tool displays the current status of the medium heat operating mode determined by the heated seat switch signal circuit inputs to the passenger door module.

Heat Indicator High: The scan tool displays On or Off. The scan tool displays the current status of the high heat operating mode determined by the heated seat switch signal circuit inputs to the passenger door module.

Back Only Heat Indicator: The scan tool displays On or Off. The scan tool displays the current status of the heated seat back only operating mode determined by the heated seat switch signal circuit inputs to the passenger door module.

Back Only Heat Switch: The scan tool displays Active or Inactive. When the heated seat back switch is pressed the scan tool displays Active.

Heat Indicator Low: The scan tool displays On or Off. Whenever the low heat indicator is commanded on by the passenger door module the scan tool displays On.

Heat Indicator Medium: The scan tool displays On or Off. Whenever the medium heat indicator is commanded on by the passenger door module the scan tool displays On.

Heat Indicator High: The scan tool displays On or Off. Whenever the high heat indicator is commanded on by the passenger door module the scan tool displays On.

Back Only Heat Indicator: The scan tool displays On or Off. Whenever the heated seat back only indicator is commanded on by the passenger door module the scan tool displays On.