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HOMESERVICE MANUALSCHEVROLET2013SILVERADO 2500 HD LT, 2D CAB CHASSIS, 6.6L ENG VIN 8, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - FUEL PUMP/TRAILER BRAKE CONTROL MODULE TO RADIO X1 (UYS)COMPONENT CONNECTOR END VIEWSGLOW PLUG CONTROL MODULE (GPCM) X2 (DIESEL)
2013 Chevrolet Silverado 2500 HD LT, 2D Cab Chassis, 6.6L Eng VIN 8, RWD

Glow Plug Control Module (GPCM) X2 (Diesel)

2013 Chevrolet Silverado 2500 HD LT, 2D Cab Chassis, 6.6L Eng VIN 8, RWDSECTION Glow Plug Control Module (GPCM) X2 (Diesel)
GM2424957
Connector Part Information
  • Harness: Engine
  • OEM: 10001042
  • Service: 13576417
  • Description: 43-Way F 1.2/ 2.8 Series, Sealed (BK)
Terminal Part Information
  • Pins: 1-15
  • Terminated Lead: 13576372
  • Release Tool: J-38125-556
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: 2 21 24 49206 0/32
  • Core/Insulation Crimp: Pins: 1-6, 8, 10-15: C/5
  • Core/Insulation Crimp: Pins: 7, 9: E/1
  • Pins: 16-19, 23-26, 30, 31, 33, 37, 38, 40
  • Terminated Lead: 13580008
  • Release Tool: J-38125-21
  • Diagnostic Test Probe: J-35616-16 (L-GN)
  • Terminal/Tray: Not Available
  • Core/Insulation Crimp: Not Available
Glow Plug Control Module (GPCM) X2 (Diesel)

Pin Wire Circuit Function
1 2 GY/WH 3675 DEF Pump Heater Control
2 2 WH/YE 1584 Glow Plug 4 Control
3 2 YE 1583 Glow Plug 3 Control
4 2 PU/WH 1582 Glow Plug 2 Control
5 2 PU 1581 Glow Plug 1 Control
6 2 PU/WH 3199 DEF Pressure Line Heater Control
7 1 TN 3673 Nox Sensor 1 Ground
8 2 BK/WH 351 Ground
9 1 TN/BK 3671 Nox Sensor 2 Ground
10 2 BK 550 Ground
11 2 OG/WH 3677 DEF Reservoir Heater Control
12 2 D-GN 1585 Glow Plug 5 Control
13 2 D-GN/WH 1586 Glow Plug 6 Control
14 2 PK 1587 Glow Plug 7 Control
15 2 PK/WH 1588 Glow Plug 8 Control
16 0.5 D-GN 2924 Intake Air Heater Current Feedback Signal
17 0.5 PU 2922 Intake Air Heater Digital Response Signal
18 0.5 TN 2501 High Speed GMLAN Serial Data (-) (1)
19 0.5 TN 2501 High Speed GMLAN Serial Data (-) (1)
20-22 - - Not Available
23 0.5 TN 2925 Intake Air Heater Voltage Feedback Signal
24 0.5 BK 2923 Intake Air Heater Temperature Signal
25 0.5 TN/BK 2500 High Speed GMLAN Serial Data (+) (1)
26 0.5 TN/BK 2500 High Speed GMLAN Serial Data (+) (1)
27-29 - - Not Available
30 0.5 OG/BK 2921 Intake Air Heater Switch On/Off Signal
31 0.5 YE 2920 Intake Air Heater Heart Beat Signal
32 - - Not Available
33 0.5 PK 2139 Run/Crank Ignition 1 Voltage
34-36 - - Not Available
37 0.5 PU 3674 Nox Sensor 1 Supply Voltage
38 0.5 GY 3672 Nox Sensor 2 Supply Voltage
39 - - Not Available
40 0.5 D-BU 5985 Accessory Wakeup Serial Data
41-43 - - Not Available
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.