Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 701 (WIRING SYSTEMS - SPECIFICATIONS, COMPONENT VIEWS AND CONNECTOR END VIEWS)COMPONENT LOCATORELECTRICAL CENTER IDENTIFICATION VIEWSFUSE BLOCK - UNDERHOOD BOTTOM VIEWUNDERHOOD C1
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F
Underhood C1
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Underhood C1
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Fuse Block Terminal Identification - Underhood C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1 | PNK | 839 | Ignition 1 Voltage |
| A2 | - | - | Not Used |
| A3 | BLK/WHT | 451 | Ground |
| A4-A5 | - | - | Not Used |
| A6 | PNK | 639 | Ignition 1 Voltage |
| A7-A12 | - | - | Not Used |
| B1 | PNK | 839 | Ignition 1 Voltage |
| B2 | PNK | 339 | Ignition 1 Voltage |
| B3 | - | - | Not Used |
| B4 | BRN/WHT | 419 | MIL Control |
| B5 | PNK | 639 | Ignition 1 Voltage |
| B6 | ORN | 340 | Battery Positive Voltage |
| B7 | ORN | 340 | Battery Positive Voltage |
| B8 | BRN | 241 | Ignition 3 Voltage |
| B9-B12 | - | - | Not Used |
| C1 | PNK | 839 | Ignition 1 Voltage |
| C2-C3 | - | - | Not Used |
| C4 | GRY/BLK | 87 | Cruise Control Resume/Accel Switch Signal |
| C5 | PNK | 639 | Ignition 1 Voltage |
| C8 | DK GRN | 59 | A/C Compressor Clutch Supply Voltage |
| C9 | DK GRN /WHT |
459 | A/C Clutch Relay Control |
| C10 | WHT | 375 | Skip Shift Indicator Control |
| C11-C12 | - | - | Not Used |
| D1 | PNK | 539 | Ignition 1 Voltage |
| D2-D3 | - | - | Not Used |
| D4 | WHT | 121 | Engine Speed Signal |
| D5 | PNK | 639 | Ignition 1 Voltage |
| D8 | PPL | 420 | TCC Brake Switch Signal |
| D9 | - | - | Not Used |
| D10 | PPL | 421 | AIR Solenoid Control |
| D11-E1 | - | - | Not Used |
| E2 | PNK | 839 | Ignition 1 Voltage |
| E3 | PNK | 339 | Ignition 1 Voltage |
| E4 | GRY | 397 | Cruise Control On Switch Signal |
| E5 | PNK | 639 | Ignition 1 Voltage |
| E6 | BRN | 241 | Ignition 3 Voltage |
| E7 | BRN | 241 | Ignition 3 Voltage |
| E8-E9 | - | - | Not Used |
| E10 | DK BLU | 473 | High Speed Cooling Fan Relay Control |
| E11 | - | - | Not Used |
| E12 | DK GRN/WHT | 465 | Fuel Pump Relay Control |
| F1 | DK GRN | 335 | Low Speed Cooling Fan Relay Control |
| F2 | PNK | 839 | Ignition 1 Voltage |
| F3 | LT BLU | 20 | Stop Lamp Supply Voltage |
| F4 | DK BLU | 84 | Cruise Control Set/Coast Switch Signal |
| F5-F6 | - | - | Not Used |
| F7 | BRN | 241 | Ignition 3 Voltage |
| F8 | - | - | Not Used |
| F9 | BRN | 436 | AIR Pump Relay Control |
| F10 | PPL | 6 | Starter Solenoid Crank Voltage |
| F11 | PNK | 239 | Driver 36 Volt Reference |
| F12 | BLK | 150 | Ground |
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.