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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) CONNECTOR END VIEWS (2.4L)ENGINE CONTROL MODULE (ECM) CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) C1
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Engine Control Module (ECM) C1
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Engine Control Module (ECM) C1
Engine Control Module (ECM) C1 Connector & Terminal Parts Information
Connector Part InformationÂ
|
Terminal Part InformationÂ
|
Engine Control Module (ECM) C1 Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | - | - | Not Used |
| 2 | PU | 420 | TCC Brake Switch/Cruise Control Release Signal |
| 3-5 | - | - | Not Used |
| 6 | BN/WH | 379 | CPP Switch Signal |
| 7 | L-BU | 20 | Stop Lamp Switch Signal |
| 8 | - | - | Not Used |
| 9 | TN | 2759 | Low Reference |
| 10-11 | - | - | Not Used |
| 12 | BN/WH | 419 | MIL Control |
| 13 | D-GN/WH | 465 | Fuel Pump Relay Control |
| 14-15 | - | - | Not Used |
| 16 | PU | 16 | VSS Low Signal |
| 17 | - | - | Not Used |
| 18 | BN | 4 | Accessory Voltage |
| 19 | PK/BK | 1039 | Ignition 1 Voltage |
| 20 | RD/WH | 840 | Battery Positive Voltage |
| 21-32 | - | - | Not Used |
| 33 | WH/BK | 1164 | 5-Volt Reference - 1 |
| 34 | GY | 2709 | 5-Volt Reference - 1 |
| 35 | PU | 1272 | 5-Volt Reference - 1 |
| 36 | BN | 1271 | Low Reference |
| 37 | tn | 1274 | Low Reference |
| 38-39 | - | - | Not Used |
| 40 | BN | 5069 | Powertrain relay Control |
| 41 | YE | 400 | VSS High Signal |
| 42-43 | - | - | Not Used |
| 44 | PU | 1589 | Fuel Level Sensor Signal |
| 44-46 | - | - | Not Used |
| 47 | D-BU | 1161 | APP Sensor 1 Signal |
| 48 | D-GN | 890 | Fuel Tank Pressure Sensor Signal |
| 49 | L-BU | 1162 | APP Sensor 2 Signal |
| 50-52 | - | - | Not Used |
| 53 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control |
| 54 | D-BU | 473 | High Speed Cooling Fan Relay Control |
| 55 | WH | 1310 | EVAP Canister Vent Solenoid Control |
| 56 | YE | 447 | Starter Relay Coil Control |
RENDER: 1.0x
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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.