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HVAC Control Module X1

Fig 1: HVAC Control Module X1 Connector End View
GM1664585Courtesy of GENERAL MOTORS COMPANY
HVAC Control Module X1

Pin Wire Circuit Function
1 0.35 GY 598 5-Volt Reference
2 0.35 BN 64 High Blower Motor Relay Control (CJ4)
3 0.35 WH 193 Rear Defog Relay Control
4 0.35 D-GN 5060 Low Speed GMLAN Serial Data
5 0.35 D-GN 5060 Low Speed GMLAN Serial Data
6 - - Not Used
7 0.35 GY/PK 754 Blower Motor Speed Control
8 - - Not Used
9 0.35 OG/PK 1840 Battery Positive Voltage
10 0.35 GY/BK 1798 Low Reference
11 0.35 BK 350 Ground
12-14 - - Not Used
15 0.35 WH/BK 5515 Air Temperature Motor Control
16-17 - - Not Used
18 0.35 PK 339 Ignition 1 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
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