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 MANUALSCHEVROLET2001CAB & CHASSIS SILVERADO 2D PICKUP, 8.1 G, 4WD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSELECTRICAL COMPONENT LOCATIONSWIRING SYSTEMS - COMPONENT LOCATOR - ELECTRICAL CENTER IDENTIFICATION VIEWSELECTRICAL CENTER IDENTIFICATION VIEWSI/P JUNCTION BLOCK - CONNECTOR END VIEWSJUNCTION BLOCK - I/P C1
2001 Chevrolet Cab & Chassis Silverado 2D Pickup, 8.1 G, 4WD, Automatic
Junction Block - I/P C1
2001 Chevrolet Cab & Chassis Silverado 2D Pickup, 8.1 G, 4WD, AutomaticSECTION Junction Block - I/P C1
Junction Block - I/P C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1-A3 | - | - | Not Used |
| A4 | LT GRN | 262 | Driver Door Key Switch Signal |
| A5-A8 | - | - | Not Used |
| A9 | BLK | 2450 | Ground |
| A10 | BLK | 2450 | Ground |
| A11 | BLK | 2450 | Ground |
| A12 | TAN/BLK | 254 | Power Door Unlock Fuse Supply Voltage |
| B1-B2 | - | - | Not Used |
| B3 | ORN/BLK | 1732 | Courtesy Lamps Supply Voltage |
| B4 | DK GRN | 1001 | RAP 1 Fuse Supply Voltage |
| B5-B9 | - | - | Not Used |
| B10 | GRY | 8 | Instrument Panel Lamp Supply Voltage |
| B11 | BRN | 2409 | Interior Park Lamps Supply Voltage |
| B12 | DK BLU | 1307 | Power Window Master Switch Lockout Signal |
| C1 | ORN | 40 | Battery Positive Voltage |
| C2 | - | - | Not Used |
| C3 | BRN | 541 | Ignition 3 Voltage |
| C4 | WHT | 156 | Courtesy Lamp Low Control |
| C5-C7 | - | - | Not Used |
| C8 | BLK | 707 | RAP Relay Coil Supply Voltage |
| BLK | 707 | RAP Relay Coil Supply Voltage | |
| C9 | RED | 842 | Battery Positive Voltage |
| C10 | GRY | 8 | Instrument Panel Lamp Supply Voltage - 1 |
| C11 | GRY/BLK | 255 | Power Door Lock Fuse Supply Voltage |
| C12 | DK BLU/WHT | 727 | Secondary Door Latch Switch Signal |
| DK BLU/WHT | 727 | Secondary Door Latch Switch Signal | |
| D1 | BLK | 2450 | Ground |
| D2-D9 | - | - | Not Used |
| D10 | GRY | 8 | Instrument Panel Lamp Supply Voltage |
| D11-D12 | - | - | Not Used |
| E1 | - | - | Not Used |
| E2 | BLK | 2450 | Ground |
| E3 | RED | 708 | Mode Door Position Signal |
| E4 | LT BLU | 733 | Air Temperature Door Position Signal |
| E5-E6 | - | - | Not Used |
| E7 | BLK | 1850 | Ground |
| E8 | BRN | 718 | Low Reference |
| E9 | - | - | Not Used |
| E10 | GRY | 8 | Instrument Panel Lamp Supply Voltage - 1 |
| GRY | 8 | Instrument Panel Lamp Supply Voltage - 1 | |
| E11-E12 | - | - | Not Used |
| F1 | GRY | 598 | 5 Volt Reference |
| F2 | BRN | 341 | Ignition 3 Voltage |
| F3 | GRY/BLK | 1798 | Ground (HVAC Auto) |
| F3 | BLK | 2450 | Ground (HVAC Manual) |
| F4 | DK GRN | 1614 | Recirculation Door Control |
| F5 | BRN | 718 | Low Reference |
| BRN | 718 | Low Reference | |
| F6 | ORN | 1740 | Battery Positive Voltage |
| F7 | ORN/BLK | 1732 | Courtesy Lamps Supply Voltage |
| F8 | BRN | 718 | Low Reference |
| BRN | 718 | Low Reference | |
| F9-F12 | - | - | Not Used |
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.