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Home >> Saturn >> 2004 >> Ion Red Line >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Data Communication System) >> Visual Identification >> Data Communication Connector End Views >> Data Link Connector (DLC)
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Data Link Connector (DLC)

WARNING: This page is about a different car, the 2007 Saturn Ion Red Line, 2007 Saturn Ion 3, and 2007 Saturn Ion 2. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Data Link Connector (DLC) Connector End View
GM68793Courtesy of GENERAL MOTORS CORP.
Data Link Connector (DLC) Connector & Terminal Parts Information

Connector Part Information 
  • OEM: 179631-1
  • Service: See Catalog
  • Description: 16-Way F (WH)
Terminal Part Information 
  • Pins: 1, 2, 4, 5, 16
  • Terminal/Tray: 776001-1/16
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)
  • Pins: 6, 14
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Data Link Connector (DLC) Terminal Identification

Pin Wire Color Circuit No. Function
1 D-GN 5060 Low Speed GMLAN Serial Data
2 PU 1807 Class 2 Serial Data
3 - - Not Used
4 BK 550 Ground
5 BK/WH 151 Ground
6 TN/WH 2500 High Speed GM LAN Serial Data Bus+ (2.2L, 2.4L)
7-13 - - Not Used
14 TN 2501 High Speed GM LAN Serial Data Bus- (2.2L, 2.4L)
15 - - Not Used
16 OG 40 Battery Positive Voltage