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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1794 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT VIEWS)ELECTRICAL CENTER IDENTIFICATION VIEWSFUSE BLOCK - RIGHT REAR - WIRE ENTRY
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Fuse Block - Right Rear - Wire Entry

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Fuse Block - Right Rear - Wire Entry
WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Fuse Block - Left Rear Bottom View
GM882688Courtesy of GENERAL MOTORS CORP.
Fuse Block - Right Rear - Wire Entry

Pin Wire Circuit Function
CB1 3 RD/WH 1040 Battery Positive Voltage
CB2 - - Battery Positive Voltage Bus 2
FD1 0.35 OG/BK 737 Rear Compartment Lamp Control
FD2 0.35 OG/BK 744 Rear Compartment Lid Ajar Switch Signal
0.35 OG/BK 744 Rear Compartment Lid Ajar Switch Signal
FL1 5 GY 911 Battery Positive Voltage
FL2 - - Battery Positive Voltage Bus 2
FL3 - - Battery Positive Voltage Bus 1
FL4 - - Not Used
FU1 0.8 RD/WH 1540 Battery Positive Voltage
FU2 - - Battery Positive Voltage Bus 2
FU3 0.35 RD/WH 540 Battery Positive Voltage
0.35 RD/WH 540 Battery Positive Voltage (UFT)
FU4 - - Battery Positive Voltage Bus 2
FU5 2 RD/WH 2640 Battery Positive Voltage (CF5)
FU6 - - Battery Positive Voltage Bus 2
FU7 0.35 L-BU 20 Battery Positive Voltage
FU8 - - Battery Positive Voltage Bus 2
FU9 0.5 YE 909 Battery Positive Voltage (TT7 or TT8)
FU10 - - Battery Positive Voltage Bus 2
FU11 0.8 RD/WH 2540 Battery Positive Voltage (KA1 or KB6)
0.8 RD/WH 2540 Battery Positive Voltage (U2K)
FU12 - - Battery Positive Voltage Bus 2
FU13 1 RD/WH 2240 Battery Positive Voltage
FU14 - - Battery Positive Voltage Bus 2
FU15 - - Ignition Voltage Bus
3 PU 2000 Ignition Voltage
FU16 0.35 PK 1139 Ignition Voltage
FU17 - - Ignition Voltage Bus
FU18 0.5 PK 1339 Ignition Voltage
0.5 PK 1339 Ignition Voltage
FU19 - - Ignition Voltage Bus
FU20 0.5 PK 1639 Ignition Voltage
FU21 - - Ignition Voltage Bus
FU22 0.8 PK 1239 Ignition Voltage
FU23 - - Battery Positive Voltage Bus 1
FU24 0.5 D-GN 910 Battery Positive Voltage
FU25 - - Battery Positive Voltage Bus 1
FU26 0.5 RD/WH 740 Battery Positive Voltage
FU27 - - Battery Positive Voltage Bus 1
FU28 0.35 RD/BK 442 Battery Positive Voltage
0.35 PK 442 Battery Positive Voltage (UFL)
FU29 - - Battery Positive Voltage Bus 1
FU30 3 L-GN 908 Battery Positive Voltage
FU31 - - Battery Positive Voltage Bus 1
FU32 0.5 L-GN 906 Battery Positive Voltage (LC3)
FU33 - - Battery Positive Voltage Bus 1
FU34 0.35 RD/BK 542 Battery Positive Voltage
R1-R5 - - Not Used
R6 0.35 OG 300 Ignition Voltage
R7 5 GY 911 Battery Positive Voltage
R8 0.5 PU 293 Rear Defog Element Supply Voltage
R9 - - Not Used
R10 0.35 WH 193 Rear Defog Relay Control
R11 0.35 BK 1050 Ground
R12 3 L-GN 908 Battery Positive Voltage
R13 3 GY 120 Fuel Pump Supply Voltage
R14 - - Not Used
R15 0.35 D-GN/WH 465 Fuel Pump Relay Control
R16 0.5 D-BU 910 Battery Positive Voltage
R17 0.5 D-BU 910 Battery Positive Voltage
0.5 D-BU 910 Battery Positive Voltage
R18 1 D-BU/WH 149 Courtesy Lamp Supply Voltage
R19 - - Not Used
R20 0.35 D-BU 1393 Courtesy Lamps Supply Voltage
R21 0.35 PK 3 Ignition Voltage
R22 - - Battery Positive Voltage Bus 1
R23 3 PU 2000 Ignition Voltage
R24 - - Not Used
R25 0.35 BK 1050 Ground
R26 - - Battery Positive Voltage Bus 1
R27 0.5 L-GN 906 Battery Positive Voltage (LC3)
R28 0.8 PK 5126 Afterboil Coolant Pump Relay Control (LC3)
R29 - - Not Used
R30 0.5 GY 5127 Afterboil Coolant Pump Supply Voltage (LC3)
R31 0.5 PK 1639 Ignition Voltage (TT7 or TT8)
R32 0.5 YE 909 Battery Positive Voltage (TT7 or TT8)
R33 0.35 OG 122 Rear Fog Lamps Supply Voltage (TT7 or TT8)
R34 - - Not Used
R35 0.35 YE 1977 Rear Fog Lamp Relay Control (TT7 or TT8)
R36 0.35 BK 1050 Ground
R37 0.35 L-BU 20 Battery Positive Voltage
R38 0.35 L-BU 20 Stop Lamp Supply Voltage
R39 - - Not Used
R40 0.35 WH 17 Stop Lamp Supply Voltage
S1 0.5 PK 1639 Ignition Voltage
S2 0.35 PK 1639 Ignition Voltage
S3 0.5 PK 1639 Ignition Voltage
S4 0.35 BK 1050 Ground
S5 0.35 BK 1050 Ground
S6 0.35 BK 1050 Ground
S7 0.35 BK 1050 Ground
S8 0.5 PK 1339 Ignition Voltage
S9 0.35 PK 1339 Ignition Voltage
S10 0.35 PK 1339 Ignition Voltage (JL7)
0.35 PK 1339 Ignition Voltage (JL7)
S11 0.35 PK 1339 Ignition Voltage
S12 0.35 L-BU 20 Stop Lamp Supply Voltage
S13 0.35 L-BU 20 Stop Lamp Supply Voltage
0.35 L-BU 20 Stop Lamp Supply Voltage (TT7 or TT8 or V92)
S14 0.35 L-BU 20 Stop Lamp Supply Voltage
S15 1 RD/WH 2240 Battery Positive Voltage
S16 0.8 RD/WH 2240 Battery Positive Voltage (UE1)
S17 1 RD/WH 2240 Battery Positive Voltage
S18 0.35 PK 1139 Ignition Voltage
S19 0.5 PK 1139 Ignition Voltage
S20 0.5 PK 1139 Ignition Voltage
S21 0.5 PK 1139 Ignition Voltage
S22 0.5 PK 1339 Ignition Voltage
S23 0.35 PK 1339 Ignition Voltage (JL7)
0.35 PK 1339 Ignition Voltage (UA2)
S24 0.35 PK 1339 Ignition Voltage (JL7)
0.35 PK 1339 Ignition Voltage (UA2 or UA7)
0.35 PK 1339 Ignition Voltage (UFL with RHD)
S25 0.35 PK 1339 Ignition Voltage
S26-S28 - - Not Used
Connector Part Information 
  • OEM: 7254-5567-30
  • Service: See Catalog
  • Description: Rear PDB Base Assembly (BK)
Terminal Part Information 
  • Pins: CB1, CB2, FL1-FL4, FU2-FU19, FU23-FU27, FU29-FU34, R1-R3, R5-R8, R10-R13, R15-R17, R20-R23, R25-R28, R30-R33, R35-R38, R40, S12-S14
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: FU1, FU28, S9- S11, S20-S28
  • Terminal/Tray: 7116-4020/11
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
  • Pins: R18, S1-S6
  • Terminal/Tray: 7116-4021/11
  • Core/Insulation Crimp: 2/A
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
RENDER: 1.0x

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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.