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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 675 (WIRING SYSTEMS - COMPONENT VIEWS)ELECTRICAL CENTER IDENTIFICATION VIEWSJUNCTION BLOCK - REAR LAMPS
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Junction Block - Rear Lamps
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Junction Block - Rear Lamps
WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 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 | L-BU | 2114 | Left Turn Signal Lamps Supply Voltage |
| B | L-BU | 1320 | Stop Lamp Supply Voltage |
| C | L-GN | 24 | Backup Lamp Supply Voltage |
| D | BN/WH | 2609 | Right Rear Park Lamps Supply Voltage |
| E | BK | 1550 | Ground (30 Series Except Chassis Cab/20 Series w/HVY) |
| BK | 1650 | Ground (30 Series Chassis Cab) | |
| BK | 1750 | Ground (10/20 Series) | |
| F | - | - | Not Used |
| G | BN | 2509 | Left Rear Park Lamps Supply Voltage |
| H | D-BU | 2115 | Right Turn Signal Lamps Supply Voltage |
Junction Block - Rear Lamps - C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BK | 1750 | Ground (X88) |
| B | BK | 1750 | Ground (Z88) |
| C | BK | 1750 | Ground (Z88) |
| D | L-BU | 1320 | CHMSL Supply Voltage/Stop Lamp Supply Voltage |
| E | BN | 2509 | Left Rear Tail Lamps Supply Voltage |
| F | L-GN | 24 | Backup Lamp Supply Voltage (Z88) |
| D-GN | 24 | Backup Lamp Supply Voltage (X88) | |
| G | - | - | Unavailable |
| H | D-BU | 2114 | Left Turn Signal Lamps Supply Voltage (X88) |
| L-BU | 2114 | Left Turn Signal Lamps Supply Voltage (Z88) | |
Junction Block - Rear Lamps - C3
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BN/WH | 2609 | Right Rear Park Lamps Supply Voltage |
| B | - | - | Not Used |
| C | BK | 1750 | Ground (R05) |
| D | BK | 1750 | Ground (03/43/53/R05) |
| E | BK | 1750 | Ground (w/o R05) |
| F | - | - | Not Used |
| G | BN | 2509 | Left Rear Park Lamps Supply Voltage |
| H | BK | 1750 | Ground |
Junction Block - Rear Lamps - C4
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | L-BU | 1320 | Stop Lamp Supply Voltage |
| B | BN | 2609 | Right Rear Park Lamps Supply Voltage (X88) |
| BN/WH | 2609 | Right Rear Park Lamps Supply Voltage (Z88) | |
| C | BK | 1750 | Ground (X88) |
| D | BK | 1750 | Ground (Z88) |
| E | L-GN | 24 | Backup Lamp Supply Voltage (Z88) |
| D-GN | 24 | Backup Lamp Supply Voltage (X88) | |
| F | D-BU | 2115 | Right Turn Signal Lamps Supply Voltage |
| G | - | - | Unavailable |
| H | BK | 1750 | Ground (Z88) |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.