SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSBUICK2010LUCERNE CXL, 3.9 1REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 320 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - ENGINE CONTROL MODULE X2 THROUGH PRESSURE CONTROL SOLENOID)COMPONENT CONNECTOR END VIEWSHVAC CONTROL MODULE X3
2010 Buick Lucerne CXL, 3.9 1

HVAC Control Module X3

2010 Buick Lucerne CXL, 3.9 1SECTION HVAC Control Module X3
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: HVAC Control Module X3 Connector End View
GM1664588Courtesy of GENERAL MOTORS COMPANY
HVAC Control Module X3

Pin Wire Circuit Function
1 0.35 PU/WH 1382 LED Dimming Signal
2 0.35 YE 1491 Backlight Lamp Control
3 0.35 GY 2614 Rear Air Temperature Door Control A (CJ4)
4 0.35 WH/BK 1236 Passenger Air Temperature Door Control B
5 0.35 L-BU/YE 1199 Driver Air Temperature Door Control B
6 0.35 D-GN 1614 Recirculation Door Control B
7 0.35 YE/WH 1318 Lower Mode Door Control B
8 0.35 L-GN/WH 5729 Rear Mode Door Control A (CJ4)
9-11 - - Not Used
12 0.35 BK/YE 2214 Rear Air Temperature Door Control B (CJ4)
13 0.35 L-BU/PU 1641 Passenger Air Temperature Door Control A
14 0.35 YE/GY 1791 Driver Air Temperature Door Control A
15 0.35 TN/BK 2274 Recirculation Door Control A
16 0.35 TN 2273 Mode Door Control A
17 0.35 L-GN/BK 5730 Rear Mode Door Control B (CJ4)
18 - - Not Used
Connector Part Information
  • Harness Type: Instrument Panel
  • OEM Connector: 7283-4548-60
  • Service Connector: 89047361
  • Description: 18-Way F 0.64 Kaizen Series (GN)
Terminal Part Information
  • Terminated Lead: 13575845
  • Release Tool: J-38125-215A
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: SAIT-A03T-M064/14
  • Core/Insulation Crimp: P/P
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.