Seat Heating System And Seat Cooling System

• Specifications
  • Fastener Tightening Specifications
• Schematic Wiring Diagrams
  • Heated/Cooled Seat Wiring Schematics
    • Heated Seat - Driver (AN3 without KB6)
    • Heated Seat - Passenger (AN3 without KB6)
    • Heated/Cooled Seat Module Power and Ground (AN3 with KB6)
    • Heated/Cooled Seat - Driver (Z75 with AN3 and KB6)
    • Heated/Cooled Seat - Passenger (Z75 with AN3 and KB6)
    • Heated/Cooled Seat - Driver (X88 or Z88, with AN3 and KB6)
    • Heated/Cooled Seat - Passenger (X88 or Z88, with AN3 and KB6)
    • Heated Seat - Rear (KA6)
    • Heated Seat - Rear (KA6 with HP2)
    • Heated Seat - Driver (KA1)
    • Heated Seat - Passenger (KA1)
• Diagnostic Information and Procedures
  • Diagnostic Code Index
  • DTC B1925 or B2170: Seat Heater Cushion Sensor (w/o HP2 with Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1925 or B2170: Seat Cushion Heater Sensor (Rear Seat)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1925 or B2170: Seat Heater Cushion Sensor (HP2 or Dealer Installed, w/o Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1935 or B2180: Seat Back Heater (w/o HP2 with Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1935 or B2180: Seat Back Heater (HP2 w/o Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1935 or B2180: Seat Back Heater (Dealer Installed)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2345: Seat Heater (w/o HP2 with Memory)
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2345: Seat Heater (HP2 w/o Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2345: Seat Heater (Rear Seat)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2345: Seat Heater (Dealer Installed)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2425 or B2430: Seat Heater Cushion (w/o HP2 with Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2425 or B2430: Seat Heater Cushion (HP2 w/o Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2425 or B2430: Seat Heater Cushion (Rear Seat)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2425 or B2430: Seat Heater Cushion (Dealer Installed)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2435 or B2440: Seat Back Heater Sensor (w/o HP2 with Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2435 or B2440: Seat Back Heater Sensor (HP2 or Dealer Installed w/o Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2508 or B2509: Seat Heater Relay (w/o HP2 with Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2508 or B2509: Seat Heater Relay (HP2 w/o Memory)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2508 or B2509: Seat Heater Relay (Rear Seat)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • DTC B2508 or B2509: Seat Heater Relay (Dealer Installed)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Testing
    • Repair Instructions
  • Symptoms - Seat Heating and Cooling
    • Notes
    • Visual/Physical Inspection
    • Intermittent
    • Symptom List
  • Heated Seat Inoperative (Chevrolet or GMC, KA1)
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Component Testing
    • Repair Instructions
  • Heated Seat Inoperative (Cadillac, KA1)
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • Heated Seat Inoperative - Rear
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • Heated/Cooled Seats Inoperative (Cadillac, KB6)
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • Heated/Cooled Seats Inoperative (Chevrolet or GMC, KB6)
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
• Repair Instructions
  • Front Seat Heater Switch Replacement
    • Removal Procedure
    • Installation Procedure
  • Front Seat Heater Control Module Replacement (with HP2)
  • Driver or Passenger Seat Back Cushion Heater Replacement (Tahoe with HP2)
  • Driver or Passenger Seat Back Cushion Heater Replacement (without HP2)
  • Driver or Passenger Seat Back Cushion Heater Replacement (Escalade with HP2)
  • Driver or Passenger Seat Cushion Heater Replacement (with HP2)
  • Driver or Passenger Seat Cushion Heater Replacement (without HP2)
  • Rear Seat Heater Control Module Replacement
  • Rear Seat Cushion Heater Replacement
  • Driver or Passenger Seat Back Ventilation Heating and Cooling Blower Replacement
  • Front Seat Cushion Ventilation Blower Replacement
  • Driver Seat Cushion Ventilation Heating and Cooling Module Replacement
  • Passenger Seat Cushion Ventilation Heating and Cooling Module Replacement
• Description and Operation
  • Heated Seats Description and Operation (KA1)
    • Description
    • Cadillac Switches
    • Chevrolet and GMC Switches
    • Heated Seat Operation
    • Heated Seat Operation with Remote Vehicle Start
    • Load Management
  • Heated Seats Description and Operation (KA6)
  • Heated/Cooled Seats Description and Operation
    • Notes
    • Seat Ventilation Heating and Cooling Module Power and Ground
    • Seat Ventilation Heating and Cooling Module
    • Air Circulation
    • Climate Control Seat System
    • Memory Seat Module
    • Modes of Operation
    • Heated/Cooled Seat Switches and HVAC Control Module (Escalade)
    • Heated/Cooled Seat Switch and Door Lock/Window Switch (Chevrolet and GMC)
    • Temperature Sensors
    • Heated Seat Operation
    • Cooled Seat Operation and Blower Motors