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 MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 540 (WIRING SYSTEMS - SPECIFICATIONS, COMPONENT VIEWS AND CONNECTOR END VIEWS)COMPONENT LOCATORELECTRICAL CENTER IDENTIFICATION VIEWSFUSE BLOCK - UNDERHOOD BOTTOM VIEWUNDERHOOD C2
2006 Chevrolet Suburban C2500, 6.0 U
Underhood C2
2006 Chevrolet Suburban C2500, 6.0 USECTION Underhood C2
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 C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1-A2 | - | - | Not Used |
| A3 | WHT | 121 | Engine Speed Signal |
| A4 | DK BLU | 84 | Cruise Control Set/Coast Switch Signal |
| A5 | DK BLU | 38 | Backup Lamp Relay Control |
| A6 | LT GRN | 24 | Backup Lamp Supply Voltage |
| A7 | ORN | 300 | Ignition 3 Voltage |
| A8-A9 | - | - | Not Used |
| A10 | PPL | 6 | Starter Solenoid Crank Voltage |
| A11 | PNK | 3 | Ignition Switch Voltage-Hot in On and Start |
| A12 | - | - | Not Used |
| B1 | GRY | 1901 | Left Front Modulator Hold Control |
| B2-B3 | - | - | Not Used |
| B4 | GRY/BLK | 87 | Cruise Control Resume/Accel Switch Signal |
| B5 | - | - | Not Used |
| B6 | PPL | 420 | TCC Brake Switch Signal |
| B7 | PNK | 339 | Ignition 1 Voltage |
| B8 | - | - | Not Used |
| B9 | ORN | 2740 | Battery Positive Voltage |
| B10-B12 | - | - | Not Used |
| C1-C3 | - | - | Not Used |
| C4 | GRY | 397 | Cruise Control On Switch Signal |
| C5 | BRN/WHT | 419 | MIL Control |
| C8 | BLK | 28 | Horn Relay Control |
| BLK | 28 | Horn Relay Control | |
| C9-C12 | - | - | Not Used |
| D1 | PPL | 34 | Front Fog Lamps Supply Voltage |
| D2 | - | - | Not Used |
| D3 | TAN | 12 | Headlamp Low Beam Supply Voltage |
| D4 | PPL | 333 | Brake Fluid Level Sensor Signal |
| D5 | - | - | Not Used |
| D8 | YEL | 143 | Accessory Voltage |
| D9 | - | - | Not Used |
| D10 | LT GRN | 11 | Headlamp High Beam Supply Voltage |
| D11 | BRN | 9 | Park Lamp Supply Voltage |
| D12 | - | - | Not Used |
| E1 | DK GRN /WHT |
1317 | Fog Lamp Relay Control |
| E2-E3 | - | - | Not Used |
| E4 | RED | 122 | Rear Fog Lamp Supply Voltage |
| E5 | LT BLU/WHT | 1314 | Left Front Turn Signal Lamp Supply Voltage |
| E6 | DK GRN | 306 | Headlamp Switch Headlamps Off Signal |
| DK GRN | 306 | Headlamp Switch Headlamps Off Signal | |
| E7 | BLK/WHT | 99 | Windshield Washer Fluid Level Signal |
| E8 | YEL | 143 | Accessory Voltage |
| E9-E12 | - | - | Not Used |
| F1 | LT BLU | 20 | Stop Lamp Supply Voltage |
| F2 | - | - | Not Used |
| F3 | ORN | 640 | Battery Positive Voltage |
| F4 | WHT | 103 | Headlamp Switch Headlamps On Signal |
| WHT | 103 | Headlamp Switch Headlamps On Signal | |
| F5 | DK BLU/WHT | 1315 | Right Front Turn Signal Lamp Supply Voltage |
| F6 | PNK | 94 | Windshield Washer Switch Signal |
| F7-F9 | - | - | Not Used |
| F10 | WHT | 375 | Skip Shift Indicator Control |
| F11 | BRN | 9 | Park Lamp Supply Voltage |
| 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.