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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 764 (COMPONENT LOCATIONS - ELECTRICAL CENTER IDENTIFICATION VIEWS)ELECTRICAL CENTER IDENTIFICATION VIEWSFUSE BLOCK - UNDERHOOD X2
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Fuse Block - Underhood X2

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Fuse Block - Underhood X2
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Fig 1: Fuse Block - Underhood X2 Connector End View
GM1665660Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood X2

Pin Wire Circuit Function
A1 0.35 D-GN 335 Low Speed Cooling Fan Relay Control (except HP2)
A2-A5 - - Not Used
B1-B3 - - Not Used
B4 0.5 OG 300 Ignition Voltage (HP2)
B5 0.35 D-BU/WH 473 High Speed Cooling Fan Relay Control (except HP2)
C1-C2 - - Not Used
C3 0.8 D-GN/WH 459 A/C Compressor Clutch Relay Control (except HP2)
C4 - - Not Used
C5 0.5 YE/BK 625 Starter Enable Relay Control (except HP2)
D1-D2 - - Not Used
D3 0.5 RD/WH 440 Battery Positive Voltage
D4 0.8 D-GN 59 A/C Compressor Clutch Supply Voltage (except HP2)
D5 0.5 BN 241 Ignition Voltage (NQH, except HP2)
E1-E3 - - Not Used
F1 3 PU 6 Starter Solenoid Crank Voltage (except HP2)
G1 - - Not Used
H1 - - Not Used
J1 - - Not Used
K1-K3 - - Not Used
L1 0.5 PK 1839 Ignition Voltage (L94, LC9 or LMG)
0.5 PK 1839 Ignition Voltage (HP2)
L2 0.5 PK/BK 1539 Ignition Voltage
0.5 PK/BK 1539 Ignition Voltage
L3 0.8 PK/WH 1239 Ignition Voltage
0.8 PK/WH 1239 Ignition Voltage
L4 0.5 PK 539 Ignition Voltage
0.5 PK 539 Ignition Voltage
L5 0.8 PK 1039 Ignition Voltage
M1 0.5 PK 1839 Ignition Voltage
0.5 PK 1839 Ignition Voltage
M2 0.8 PK 1239 Ignition Voltage (HP2)
1 PK/WH 1239 Ignition Voltage (except HP2)
M3 0.8 PK 1239 Ignition Voltage
0.8 PK 1239 Ignition Voltage
M4 0.8 PK/BK 1039 Ignition Voltage
0.8 PK/BK 1039 Ignition Voltage
M5 0.8 PK 1039 Ignition Voltage
0.8 PK 1039 Ignition Voltage
N1 0.5 PK 1339 Ignition Voltage (HP2)
0.5 PK/BK 1339 Ignition Voltage (except HP2)
N2 - - Not Used
N3 0.5 RD/WH 1840 Battery Positive Voltage
N4 0.5 PK/WH 2139 Ignition Voltage
0.5 PK/WH 2139 Ignition Voltage (NP0 or NQH)
N5 2 BK 550 Ground
P1 0.5 PK/BK 1339 Ignition Voltage (HP2)
P2 0.35 YE 5991 Powertrain Relay Coil Control
P3 0.5 L-BU/WH 6311 Brake Switch Signal
P4 0.35 D-GN/WH 465 Fuel Pump Relay Control - Primary (MYD)
P5 0.5 PK 439 Ignition Voltage
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 13513347
  • Service Connector: 19115659
  • Description: 50-Way F GT 280 Metri-Pack 800 Series (BK)

Terminal Part Information
  • Pins: A1, B5, C5, D3, D4, L1, L2, L4, M1, N1, N3, N4, P2-P5
  • Terminated Lead: Service by Terminal - 13525970
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: 13525970/4
  • Core/Insulation Crimp: Pins A1, B5, C5, D3, L1 (without LZ1), M1, N1, N3, N4 (without NP0 or NQH), P2-P5 - E/A
  • Core/Insulation Crimp: Pins D4, L1 (LZ1), L2, L4, M1, N4 (NP0 or NQH) - 2/A
  • Pins: C3, L3, L5, M2-M5, N5
  • Terminated Lead: Pins C3, L5, M2: Service by Terminal - 13525970
  • Terminated Lead: Pins L3, M3-M5, N5: Service by Terminal - 13525969
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: Pins C3, L5, M2 - 13525970/4
  • Terminal/Tray: Pins L3, M3-M5, N5 - 13525969/4
  • Core/Insulation Crimp: Pins C3, L5, M2 - 2/A
  • Core/Insulation Crimp: Pins L3, M3-M5, N5 - 4/4
  • Pins: F1
  • Terminated Lead: 13575718
  • Release Tool: J-38125-558
  • Diagnostic Test Probe: J-35616-44 (YE)
  • Terminal/Tray: 12110127/19
  • Core/Insulation Crimp: F/G
RENDER: 1.0x

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

  • • You smell fuel, burning insulation, or see smoke.
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  • • 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.