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.
2006 Chevrolet Cobalt SS, 4D Sedan, StandardFACTORY OEM SERVICE PROCEDURE
Body Control Module (BCM) C3
Body Control Module (BCM) C3
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1 | TN | 294 | Door Lock Actuator Unlock Control (AU3) |
| A2 | TN | 294 | Door Lock Actuator Unlock Control (AU3) |
| TN | 294 | Door Lock Actuator Unlock Control (AU3) (Sedan) | |
| A3 | D-BU/WH | 149 | Courtesy Lamp Supply Voltage |
| A4 | GY | 295 | Door Lock Actuator Lock Control (AU3) (Driver) |
| GY | 295 | Door Lock Actuator Lock Control (AU3) (Passenger) | |
| A5 | GY | 295 | Door Lock Actuator Lock Control (AU3) |
| GY | 295 | Door Lock Actuator Lock Control (AU3) (Sedan) | |
| A6 | - | - | Not Used |
| A7 | BN | 9 | Park Lamp Supply Voltage |
| A8 | PK | 339 | Run/Crank Ignition 1 Voltage (UQ3) |
| A9 | YE | 18 | Left Rear Stop/Turn Lamp Supply Voltage |
| A10 | GY | 157 | Interior Lamp Control |
| A11 | - | - | Not Used |
| A12 | D-GN | 19 | Right Rear Stop/Turn Lamp Supply Voltage |
| B1 | TN | 694 | Driver Door Lock Actuator Unlock Control |
| B2 | - | - | Not Used |
| B3 | RD/WH | 1240 | Battery Positive Voltage |
| RD/WH | 1240 | Battery Positive Voltage | |
| B4 | - | - | Not Used |
| B5 | BN | 4 | Accessory Voltage (LSJ) |
| B5 | BN | 4 | Accessory Voltage (L61) |
| BN | 4 | Accessory Voltage (L61) | |
| B6-B7 | - | - | Not Available |
| B8-B11 | - | - | Not Used |
| B12 | GY | 8 | Instrument Panel Lamp Supply Voltage (1) (LSJ) and (J41) |
| B12 | GY | 8 | Instrument Panel Lamp Supply Voltage (1) (L61) |
| GY | 8 | Instrument Panel Lamp Supply Voltage (1) (L61) | |
| C1-C2 | - | - | Not Available |
| C3 | D-GN | 1301 | Retained Accessory Power Fuse Supply Voltage |
| C4 | - | - | Not Used |
| C5 | D-GN | 801 | Retained Accessory Power Fuse Supply Voltage |
| C6-C7 | - | - | Not Available |
| C8-C11 | - | - | Not Used |
| C12 | OG | 228 | Windshield Washer Pump Control |
| D1 | RD/BK | 142 | Battery Positive Voltage |
| D2 | - | - | Not Available |
| D3 | - | - | Not Used |
| D4 | RD/WH | 840 | Battery Positive Voltage |
| D5 | D-GN | 801 | Retained Accessory Power Fuse Supply Voltage |
| D6 | PK | 739 | Run/Crank Ignition 1 Voltage |
| D7 | PK | 1339 | Run/Crank Ignition 1 Voltage |
| D8-D9 | - | - | Not Used |
| D10 | RD/BK | 442 | Battery Positive Voltage |
| D11 | - | - | Not Used |
| D12 | RD/WH | 242 | Battery Positive Voltage |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.