LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 651 (Wiring Systems And Power Management - Component Connector End Views - Electronic Compass Module To Memory Seat Module (X4)) >> Component Connector End Views >> HVAC Control Module X3 (CJ3)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

HVAC Control Module X3 (CJ3)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
GM1715228Courtesy of
Connector Part Information
  • Harness Type: Instrument Panel
  • OEM Connector: 15491304
  • Service Connector: 15126710
  • Description: 20-Way F USCAR 0.64 Series (GY)
Terminal Part Information
  • Terminated Lead: 13575264
  • Release Tool: J-38125-215
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: SAITS-A03T-M064/14
  • Core/Insulation Crimp: P/P
HVAC Control Module X3 (CJ3)

Pin Wire Circuit Function
1 - - Not Used
2 0.35 YE/BK 713 Defrost/Heater Mode Valve Position Sensor Signal
3 - - Not Used
4 0.35 GY/BK 754 Blower Motor Speed Control
5-9 - - Not Used
10 0.35 GY 598 5-Volt Reference
11 - - Not Used
12 0.35 L-BU 733 Air Temperature Door Position Signal
13 0.35 D-BU 1646 Auxiliary Air Temperature Door Position Signal
14 0.35 WH 2622 Evaporator Temperature Signal
15 0.35 TN 2273 Mode Door Control
16 0.35 D-BU 1199 Air Temperature Door Control
17 0.35 D-GN 1614 Recirculation Door Control
18 0.35 WH/BK 1236 Auxiliary Air Temperature Door Control
19 0.35 TN 552 Low Reference
20 0.35 YE 1791 Low Reference