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HOMESERVICE MANUALSCADILLAC2011CTS V, 2D COUPE, STANDARDREPAIR AND DIAGNOSISELECTRICALWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - HEATED OXYGEN SENSOR THROUGH INFLATABLE RESTRAINT I/P MODULECOMPONENT CONNECTOR END VIEWSHVAC CONTROL MODULE X1 CONNECTOR END VIEW
2011 Cadillac CTS V, 2D Coupe, Standard

HVAC Control Module X1 Connector End View

2011 Cadillac CTS V, 2D Coupe, StandardSECTION HVAC Control Module X1 Connector End View
Fig 1: HVAC Control Module X1 Connector End View
GM1664585Courtesy of GENERAL MOTORS CORP.
HVAC Control Module X1

Pin Wire Circuit Function
1 0.35 L-GN/BK 735 Ambient Air Temperature Sensor Signal
2 0.35 D-GN 734 Inside Air Temperature Sensor Signal
3 0.35 L-BU/BK 590 Solar Sensor Driver Signal (LHD)
0.35 GY 1548 Solar Sensor Passenger Signal (RHD)
4 0.35 GY 1548 Solar Sensor Passenger Signal (LHD)
0.35 L-BU/BK 590 Solar Sensor Driver Signal (RHD)
5 - - Not Used
6 0.35 WH 193 Rear Defogger Relay Control
7 - - Not Used
8 0.35 D-GN 5060 Low Speed GMLAN Serial Data
9 0.35 OG 300 Ignition 3 Voltage
10 0.35 BK/WH 651 Ground
11 0.35 YE 61 Low Reference
12 0.35 PU/WH 5203 Air Quality Sensor Signal (K14)
13-15 - - Not Used
16 0.35 GY/BK 754 Blower Motor Speed Request Signal
17 0.35 D-GN 5060 Low Speed GMLAN Serial Data
18 0.35 RD/WH 540 Battery Positive Voltage
Connector Part Information 
  • Harness Type: Instrument Panel
  • OEM Connector: 7283-4544-30
  • Service Connector: 89047360
  • Description: 18-Way F 0.64 Kaizen Series (BK)
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

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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.