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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 - LEFT REAR - WIRE ENTRY

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Fuse Block - Left Rear - Wire Entry

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Fuse Block - Left 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

Courtesy of GENERAL MOTORS CORP.

Fuse Block - Left Rear - Wire Entry

Pin	Wire	Circuit	Function
CB1	3 RD/WH	3740	Battery Positive Voltage
CB2	-	-	Battery Positive Voltage Bus 1
FD1-FD2	-	-	Not Used
FL1	3 RD	1242	Battery Positive Voltage
FL2	-	-	Battery Positive Voltage Bus 1
FL3	-	-	Battery Positive Voltage
FL4	3 GY	926	Battery Positive Voltage
FU1	0.5 TN/WH	907	Battery Positive Voltage (LC3)
FU2	-	-	Battery Positive Voltage Bus 2
FU3	0.35 RD/WH	3940	Battery Positive Voltage (RHD with U42 or LHD)
FU3	0.35 RD/WH	3940	Battery Positive Voltage (UA2)
FU4	-	-	Battery Positive Voltage Bus 2
FU5	2 RD/WH	2340	Battery Positive Voltage
FU6	-	-	Battery Positive Voltage Bus 2
FU7	0.8 RD/WH	840	Battery Positive Voltage
FU8	-	-	Battery Positive Voltage Bus 2
FU9	0.35 RD/BK	1342	Battery Positive Voltage (F55)
FU10	-	-	Battery Positive Voltage Bus 2
FU11	0.5 RD/WH	640	Battery Positive Voltage
FU12	-	-	Battery Positive Voltage Bus 2
FU13	0.35 RD/WH	3340	Battery Positive Voltage (JL7)
	0.35 RD/WH	3240	Battery Positive Voltage (YQ6 or YQ7 or UQY)
	0.35 OG	3240	Battery Positive Voltage (YQ7)
FU14	-	-	Battery Positive Voltage Bus 2
FU15	-	-	Ignition Voltage Bus
FU16	1 BN	341	Ignition Voltage (KA6)
FU17	3 BN	900	Ignition Voltage
FU18	-	-	Not Used
FU19	-	-	Ignition Voltage Bus
FU20	-	-	Not Used
FU21	-	-	Ignition Voltage Bus
FU22	0.5 BN	41	Ignition Voltage
FU23	-	-	Battery Positive Voltage Bus 1
FU24	1 RD/WH	2440	Battery Positive Voltage (YQ4 or YQ6 or YQ7)
FU25	-	-	Battery Positive Voltage Bus 1
FU26	0.8 RD/WH	2840	Battery Positive Voltage
FU27	-	-	Battery Positive Voltage Bus 1
FU28	0.5 RD/WH	3640	Battery Positive Voltage
FU29	-	-	Battery Positive Voltage Bus 1
FU30	0.5 D-GN	901	Battery Positive Voltage
FU31	-	-	Battery Positive Voltage Bus 1
FU32	0.5 RD/WH	940	Battery Positive Voltage
FU33	-	-	Battery Positive Voltage Bus 1
FU34	0.5 D-GN/WH	905	Battery Positive Voltage (TT7 or TT8)
R1	0.5 TN/WH	907	Battery Positive Voltage (LC3)
R2	0.5 TN/WH	907	Battery Positive Voltage (LC3)
R2	0.5 TN/WH	907	Battery Positive Voltage (LC3)
R3	0.5 TN	2022	Coolant Pump Control (LC3)
R4	-	-	Not Used
R5	0.5 PK	2014	Coolant Pump Relay Control (LC3)
R6	0.35 GY	921	Ignition Voltage
R7	3 GY	926	Battery Positive Voltage
R8	3 D-GN	322	Automatic Level Control Compressor Motor Supply Voltage (F55)
R9	-	-	Not Used
R10	0.35 YE	321	Automatic Level Control Relay Control (F55)
R11	0.35 YE/BK	1418	Left Rear Turn Signal Switch Signal (TT7 or TT8)
R12	0.35 PU	1472	Left Park Lamp Supply Voltage (TT7 or TT8)
R12	0.35 PU	1472	Left Park Lamp Supply Voltage (TT7 or TT8)
R13	0.35 D-GN/WH	905	Battery Positive Voltage (TT7 or TT8)
R13	0.35 D-GN/WH	905	Battery Positive Voltage (TT7 or TT8)
R14	0.5 PU	709	Left Park Lamp Supply Voltage (TT7 or TT8)
R15	0.35 D-GN/WH	904	Battery Positive Voltage (TT7 or TT8)
R16	0.35 D-GN/WH	1419	Right Rear Turn Signal Switch Signal (TT7 or TT8)
R17	0.5 BN/WH	1473	Right Park Lamp Supply Voltage (TT7 or TT8)
R17	0.5 BN/WH	1473	Right Park Lamp Supply Voltage (TT7 or TT8)
R18	0.5 D-GN/WH	905	Battery Positive Voltage (TT7 or TT8)
R19	0.5 BN/WH	309	Right Park Lamp Supply Voltage (TT7 or TT8)
R20	0.35 D-GN/WH	904	Battery Positive Voltage (TT7 or TT8)
R20	0.35 D-GN/WH	903	Battery Positive Voltage (TT7 or TT8)
R21	0.35 BK	850	Ground
R22	-	-	Battery Positive Voltage Bus 1
R23	3 BN	900	Ignition Voltage
R24	-	-	Not Used
R25	0.35 OG	300	Ignition Voltage
R25	0.35 GY	921	Ignition Voltage
R26	-	-	Battery Positive Voltage Bus 1
R27	0.35 D-GN/WH	903	Battery Positive Voltage (TT7 or TT8)
R28	-	-	Not Used
R29	-	-	Battery Positive Voltage Bus
R30	0.35 BN/WH	1429	Standing Lamp Relay Control (TT7 or TT8)
R31	0.35 RD/WH	3640	Battery Positive Voltage
R32	0.5 RD/WH	3640	Battery Positive Voltage
R33	0.35 TN/WH	56	Trunk Release Motor Control
R34	-	-	Not Used
R35	0.35 L-BU	1344	Trunk Release Relay Control
R36	0.35 D-GN	901	Battery Positive Voltage
R37	0.35 D-GN	901	Battery Positive Voltage
R37	0.5 D-GN	901	Battery Positive Voltage
R38	0.5 L-GN	24	Backup Lamp Supply Voltage
R39	-	-	Not Used
R40	0.35 D-GN	646	Reverse Relay Control
S1	0.5 BN	41	Ignition Voltage
S2	-	-	Not Used
S3	0.35 BN	41	Ignition Voltage
S4	-	-	Not Used
S5	0.35 BN	41	Ignition Voltage (KA1 or KB6)
S6	0.5 BN	41	Ignition Voltage
S7	0.5 BN	41	Ignition Voltage
S8-S11	-	-	Not Used
S12	0.8 RD/WH	840	Battery Positive Voltage
S13	0.8 RD/WH	840	Battery Positive Voltage
S14	0.8 RD/WH	840	Battery Positive Voltage
S15-S19	-	-	Not Used
S20	0.5 RD/WH	3640	Battery Positive Voltage
S21	0.5 RD/WH	3640	Battery Positive Voltage
S22	0.5 RD/WH	3640	Battery Positive Voltage
S23	0.35 RD/WH	3640	Battery Positive Voltage
S24	0.5 L-GN	24	Backup Lamp Supply Voltage
S25	0.35 L-GN	24	Backup Lamp Supply Voltage
S26	0.5 L-GN	24	Backup Lamp Supply Voltage
S27	0.35 L-GN	24	Backup Lamp Supply Voltage
S28	0.35 L-GN	24	Backup Lamp Supply Voltage

Connector Part Information

OEM: 7254-5201
Service: See Catalog
Description: Rear PDB Base Assembly (BK)

Terminal Part Information

Pins: CB1, CB2, FL1-FL4, FU1, FU2, FU4-FU6, FU8-FU17, FU19-FU21, FU23-FU30, R1, R2, R5, R7, R8, R10-R23, R25-R27, R29-R31, R33, R35-R37, R40
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Pins: FU3, FU22, R3, R6, R38, S1-S8, S15-S28
Terminal/Tray: 7116-4020/11
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-18 (BK)

Pins: FU7, S12-S14
Terminal/Tray: 7116-4021/11
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-18 (BK)

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.