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Home >> Cadillac >> 2009 >> STS V >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Wiring Systems And Power Management - Hazard Warning Switch Through Rear Parking Assist (RPA) >> HVAC Control Module X1

HVAC Control Module X1

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 GY 705 5-Volt Reference
2-3 - - Not Used
4 0.35 D-GN 5060 Low Speed GMLAN Serial Data
5 - - Not Used
6 0.35 BN 247 Medium Blower Motor Control
7-8 - - Not Used
9 0.35 RD/WH 340 Battery Positive Voltage
10 0.35 YE 61 Low Reference
11 0.35 BK/WH 451 Ground
12-15 - - Not Used
16 0.5 GY/BK 754 Blower Motor Speed Control
17 - - Not Used
18 0.35 PK 1539 Run/Crank Ignition 1 Voltage
Connector Part Information 
  • OEM: 7283-4544-30
  • Service: 89047360
  • Description: 18-Way F (BK)
Terminal Part Information 
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
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