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 386 (WIRING SYSTEMS (COMPONENT LOCATOR))COMPONENT LOCATORELECTRICAL CENTER IDENTIFICATION VIEWSJUNCTION BLOCK - REAR
2006 Chevrolet Suburban C2500, 6.0 U
Junction Block - Rear
2006 Chevrolet Suburban C2500, 6.0 USECTION Junction Block - Rear
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Junction Block - Rear Lamps - C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | LT BLU | 2114 | Left Turn Signal Lamps Supply Voltage |
| B | LT BLU | 1320 | Stop Lamp Supply Voltage |
| C | LT GRN | 24 | Backup Lamp Supply Voltage |
| D | BRN/WHT | 2609 | Right Rear Park Lamps Supply Voltage |
| E | BLK | 1550 | Ground (30 Series Except Chassis Cab) |
| BLK | 1650 | Ground (30 Series Chassis Cab) | |
| BLK | 1750 | Ground (10/20 Series) | |
| F | - | - | Not Used |
| G | BRN | 2509 | Left Rear Park Lamps Supply Voltage |
| H | DK BLU | 2115 | Right Turn Signal Lamps Supply Voltage |
Junction Block - Rear Lamps - C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BLK | 1750 | Ground |
| B | BLK | 1750 | Ground (Z88) |
| C | BLK | 1750 | Ground (Z88) |
| D | LT BLU | 1320 | CHMSL Supply Voltage/Stop Lamp Supply Voltage |
| E | BRN | 2509 | Left Rear Tail Lamps Supply Voltage (NYS) |
| F | LT GRN | 24 | Backup Lamp Supply Voltage |
| G | - | - | Unavailable |
| H | DK BLU | 2114 | Left Turn Signal Lamps Supply Voltage |
Junction Block - Rear Lamps - C3
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BRN/WHT | 2609 | Right Rear Park Lamps Supply Voltage |
| B-C | - | - | Not Used |
| D | BLK | 1750 | Ground (03/43/53/NYS/R05/VF7) |
| E | BLK | 1750 | Ground - Domestic Only |
| F | - | - | Not Used |
| G | BRN | 2509 | Left Rear Park Lamps Supply Voltage |
| H | BLK | 1750 | Ground |
Junction Block - Rear Lamps - C4
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | LT BLU | 1320 | Stop Lamp Supply Voltage |
| B | BRN | 2609 | Right Rear Park Lamps Supply Voltage |
| C | BLK | 1750 | Ground |
| D | BLK | 1750 | Ground (Z88) |
| E | LT GRN | 1324 | Backup Lamp Supply Voltage |
| F | DK BLU | 2115 | Right Turn Signal Lamps Supply Voltage |
| G | - | - | Unavailable |
| H | BLK | 1750 | Ground (Z88) |
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.