SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 686 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - F THROUGH H)COMPONENT CONNECTOR END VIEWS - F THROUGH HHVAC CONTROL MODULE - AUXILIARY (KA6)
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

HVAC Control Module - Auxiliary (KA6)

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION HVAC Control Module - Auxiliary (KA6)
WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: HVAC Control Module - Auxiliary (KA6)
GM744295Courtesy of GENERAL MOTORS CORP.
HVAC Control Module - Auxiliary (KA6)

Pin Wire Circuit Function
A1 0.35 YE 1491 Backlight Lamp Control
A2 0.35 PK 1636 Right Rear Heated Seat Low Indicator Control
A3 0.35 D-BU/WH 6586 Right Rear Heated Seat Medium Indicator Control
A4 0.35 TN/WH 1635 Right Rear Heated Seat High Indicator Control
A5 0.35 YE 182 Heated Seat Control Module Enable Signal
A6 0.35 BN 1637 Left Rear Heated Seat Switch Signal
A7 0.35 L-BU 72 Rear Temperature Switch Signal
A8 0.35 YE 61 Low Reference
B1 0.35 BK 450 Ground
B2 0.35 TN/WH 1638 Left Rear Heated Seat High Indicator Control
B3 0.35 BN/WH 6585 Left Rear Heated Seat Medium Indicator Control
B4 0.35 PK 1631 Left Rear Heated Seat Low Indicator Control
B5 0.35 BN 1634 Right Rear Heated Seat Switch Signal
B6 0.35 PU 73 Rear Mode Switch Signal
B7 0.35 GY 705 5-Volt Reference
B8 - - Not Used
Connector Part Information 
  • Harness: Console
  • OEM: 12084944
  • Service: 12084944
  • Description: 16-Way F Micro-Pack 100 Series (BK)
Terminal Part Information 
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.