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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1356 (COMPONENT LOCATIONS & COMPONENT CONNECTOR END VIEWS)COMPONENT CONNECTOR END VIEWSHVAC CONTROL MODULE X1
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

HVAC Control Module X1

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION HVAC Control Module X1
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
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 WH 193 Rear Defog Relay Control
4 - - Not Used
5 0.35 GY/BK 754 Blower Motor Speed Control
6-7 - - 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 351 Ground
11 0.35 YE 61 Low Reference
12 0.35 L-BU/BK 590 Driver Sunload Sensor Signal
13 0.35 GY 1548 Passenger Sunload Sensor Signal
14-16 - - Not Used
17 0.35 D-GN 5060 Low Speed GMLAN Serial Data
18 0.35 OG 540 Battery Positive Voltage
Connector Part Information 
  • OEM: 7283-4544-30
  • Service: 89047360
  • Description: 18-Way F (BK)
Terminal Part Information 
  • Pins: 1-3, 5, 8-13, 17, 18
  • Terminal/Tray: 7116-4618-02
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: See Terminal Repair Kit
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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