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Home >> Chevrolet >> 2007 >> Silverado Classic 1500 HD, 4WD >> Repair and Diagnosis >> Electrical >> Body Electrical >> OEM Connector End Views - Engine Control Module, Engine Controls, Engine Electrical >> Engine Controls Connector End Views (6.6L LBZ and LLY) >> Glow Plug Control Module (GPCM) Connector End View - C2
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Glow Plug Control Module (GPCM) Connector End View - C2

Fig 1: Glow Plug Control Module (GPCM) - C2 Connector End View
GM1576764Courtesy of GENERAL MOTORS CORP.
Glow Plug Control Module (GPCM) - C2 Connector & Terminal Parts Information

Connector Part Information 
  • OEM: DOC00056511
  • Service: See Catalog
  • Description: 53-Way F, Sealed (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
Glow Plug Control Module (GPCM) - C2 Terminal Identification

Pin Wire Color Circuit No. Function
1 RD/WH HB13 Glow Plug 3 Supply Voltage
2 WH/GN HB12 Glow Plug 2Supply Voltage
3 RD/GN HB11 Glow Plug 1 Supply Voltage
4 WH/YE HB14 Glow Plug 4 Supply Voltage
5 - - Not Used
6 WH/D-BU HB18 Glow Plug 8 Supply Voltage
7 RD/L-GN HB15 Glow Plug 5 Supply Voltage
8 WH/L-GN HB16 Glow Plug 6 Supply Voltage
9 RD/D-BU HB17 Glow Plug 7 Supply Voltage
10-25 - - Not Used
26 YE IC182 IAH Command 2
27 RD IC185 IAH Feedback Signal
28 BK IC180 IAH Temperature Signal
29 PK IC183 IAH Current Signal
30 TN IC184 IAH Voltage Signal
31 OG IC181 IAH Command 1
32-42 - - Not Used
43 TN 2501 High Speed GMLAN Serial Data Bus - (M/T)
L-BU 6106 High Speed GMLAN Serial Data Bus - (A/T)
44 TN/BK 2501 High Speed GMLAN Serial Data Bus + (M/T)
44 D-BU 6105 High Speed GMLAN Serial Data Bus + (A/T)
45-50 - - Not Used
51 RD HB03 Ground
52 PK 239 Ignition 1 Voltage
53 WH 1020 Ignition 0 Voltage
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