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 (2.2L)ENGINE CONTROL MODULE (ECM) CONNECTOR END VIEWS
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Engine Control Module (ECM) Connector End Views
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Engine Control Module (ECM) Connector End Views
Engine Control Module (ECM) C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | PU | 1589 | Primary Fuel Level Sensor Signal |
| 2 | L-BU | 1162 | Accelerator Pedal Position Signal (2) |
| 3 | D-GN | 890 | Fuel Tank Pressure Sensor Signal |
| 4 | D-BU | 1161 | Accelerator Pedal Position Signal (1) |
| 5 | - | - | Not Used |
| 6 | D-GN | 1433 | Clutch Start Switch Signal |
| 7 | - | - | Not Used |
| 8 | BN/WH | 379 | Cruise Control Clutch Pedal Position Switch Signal |
| 9 | PU | 420 | Torque Converter Clutch Brake Switch Signal |
| 10 | WH/BK | 1164 | Accelerator Pedal Position 5-Volt Reference (1) |
| 11 | L-BU | 20 | Stop Lamp Supply Voltage |
| 12 | BN | 4 | Accessory Voltage |
| 13 | GY | 2709 | Fuel Tank Pressure Sensor 5-Volt Reference |
| 14 | D-GN/WH | 465 | Fuel Pump Primary Relay Control |
| 15-17 | - | - | Not Used |
| 18 | BN | 5069 | Engine Main Relay Coil Control |
| 19-27 | - | - | Not Used |
| 28 | PK/BK | 1039 | Run/Crank Ignition 1 Voltage |
| 29 | PU | 421 | Air Injection Reaction Solenoid Relay Coil Control |
| 30 | WH | 1310 | EVAP Canister Vent Solenoid Control |
| 31 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control |
| 32-40 | - | - | Not Used |
| 41 | TN | 1274 | Accelerator Pedal Position 5-Volt Reference (2) |
| 42 | - | - | Not Used |
| 43 | D-BU | 473 | High Speed Cooling Fan Relay Control |
| 44 | - | - | Not Used |
| 45 | BN/WH | 419 | Check Engine Indicator Control |
| 46 | YE | 447 | Starter Relay Coil Control |
| 47-51 | - | - | Not Used |
| 52 | RD/WH | 840 | Battery Positive Voltage |
| 53 | BN | 1271 | Accelerator Pedal Position Low Reference (1) |
| 54 | TN | 2759 | Fuel Tank Pressure Sensor Low Reference |
| 55 | - | - | Not Used |
| 56 | PU | 1272 | Accelerator Pedal Position Low Reference (2) |
Engine Control Module (ECM) C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1-2 | - | - | Not Used |
| 3 | YE | 581 | Throttle Actuator Control Open |
| 4 | - | - | Not Used |
| 5 | BN | 582 | Throttle Actuator Control Close |
| 6-9 | - | - | Not Used |
| 10 | TN | 1744 | Fuel Injector Control (1) |
| 11 | PK/BK | 1746 | Fuel Injector Control (3) |
| 12 | L-BU/BK | 844 | Fuel Injector Control (4) |
| 13 | L-GN/BK | 1745 | Fuel Injector Control (2) |
| 14 | - | - | Not Used |
| 15 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Control |
| 16 | - | - | Not Used |
| 17 | GY/WH | 1423 | Heated Oxygen Sensor Heater Low Control Bank 1 Sensor (2) |
| 18 | YE | 400 | Vehicle Speed Sensor Signal |
| 19 | PU | 401 | Vehicle Speed Sensor Low Reference |
| 20-23 | - | - | Not Used |
| 24 | GY | 2701 | Throttle Position Sensor 5-Volt Reference |
| 25 | GY/BK | 2704 | Manifold Absolute Pressure Sensor 5-Volt Reference |
| 26 | L-BU/BK | 1688 | 5-Volt Reference |
| 27 | - | - | Not Used |
| 28 | GY | 2700 | A/C Pressure Sensor 5-Volt Reference (C67) |
| 29 | TN/WH | 1704 | Sensor Low Reference |
| 30 | - | - | Not Used |
| 31 | TN | 2752 | Throttle Position Sensor Low Reference |
| 32-33 | - | - | Not Used |
| 34 | PK | 5293 | Engine Main Relay Fused Control (4) |
| 36 | PU | 486 | Throttle Position Sensor Signal (2) |
| 37 | - | - | Not Used |
| 38 | TN | 2760 | Intake Air Temperature Sensor Low Reference |
| 39 | - | - | Not Used |
| 40 | OG/BK | 469 | Manifold Absolute Pressure Sensor Low Reference |
| 41 | PU/WH | 3110 | Heated Oxygen Sensor High Signal Bank 1 Sensor (1) |
| 42 | TN/WH | 3111 | Heated Oxygen Sensor Low Signal Bank 1 Sensor (1) |
| 43 | PU/WH | 1668 | Heated Oxygen Sensor High Signal Bank 1 Sensor (2) |
| 44 | TN/WH | 1669 | Heated Oxygen Sensor Low Signal Bank 1 Sensor (2) |
| 45-46 | - | - | Not Used |
| 47 | D-GN | 335 | Low Speed Cooling Fan Relay Control |
| 48 | TN/BK | 231 | Oil Pressure Switch Signal |
| 49 | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal (C67) |
| 50 | YE | 410 | Engine Coolant Temperature Sensor Signal |
| 51 | GY/WH | 23 | Generator Field Duty Cycle Signal |
| 52 | YE | 492 | Mass Air Flow Sensor Signal |
| 53 | GY/WH | 3113 | Heated Oxygen Sensor Heater Low Control Bank 1 Sensor (1) |
| 54 | WH | 423 | Ignition Control Timing Control (1) |
| 55 | OG | 406 | Ignition Control Timing Control (2) |
| 56-57 | - | - | Not Used |
| 58 | D-GN | 485 | Throttle Position Sensor Signal (1) |
| 59 | BK/WH | 2751 | Signal Ground |
| 60 | - | - | Not Used |
| 61 | TN | 2761 | Coolant Temperature Sensor Low Reference |
| 62 | L-GN | 432 | Manifold Absolute Pressure Sensor Signal |
| 63 | OG | 225 | Generator Turn On Signal |
| 64 | TN/BK | 2500 | High Speed GMLAN Serial Data (+) (1) |
| 65 | TN | 2501 | High Speed GMLAN Serial Data (-) (1) |
| 66 | YE | 573 | Crankshaft Position Sensor Signal (1) |
| 67 | PU | 574 | Crankshaft Position Sensor Low Reference (1) |
| 68 | TN | 472 | Intake Air Temperature Sensor Signal |
| 69 | - | - | Not Used |
| 70 | BN/WH | 633 | Camshaft Position Sensor Signal |
| 71 | GY | 1716 | Knock Sensor Low Reference (1) |
| 72 | D-BU | 496 | Knock Sensor Signal (1) |
| 73 | BK/WH | 451 | Signal Ground |
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.