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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 608 (ENGINE CONTROLS AND FUEL - 2.0L - INTRODUCTION (2 OF 2))COMPONENT LOCATORPOWERTRAIN CONTROL MODULE CONNECTORSPOWERTRAIN CONTROL MODULE (PCM) C1
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Powertrain Control Module (PCM) C1
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Powertrain Control Module (PCM) C1
WARNING: This page is about a different car, the 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Powertrain Control Module (PCM) C1 Connector & Terminal Parts Information
Connector Part Information
|
Terminal Part Information
|
Powertrain Control Module (PCM) C1 Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | TN/BK | 2500 | High Speed GMLAN Serial Data (+) |
| 2 | TN | 2501 | High Speed GMLAN Serial Data (-) |
| 3-5 | - | - | Not Used |
| 6 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control |
| 7 | BN | 1271 | Low Reference |
| 8 | PU | 1272 | Low Reference |
| 9 | - | - | Not Used |
| 10 | D-BU | 473 | High Speed Cooling Fan Relay Control |
| 11 | - | - | Not Used |
| 12 | PU | 1589 | Fuel Level Sensor Signal |
| 13 | PK/BK | 5293 | Ignition 1 Voltage |
| 14 | L-BU | 6118 | IAT 2 Sensor Signal |
| 15 | - | - | Not Used |
| 16 | D-GN | 1049 | ECM/PCM/VCM Class 2 Serial Data |
| 17 | GY | 2700 | 5-Volt Reference - 1 |
| 18 | BN | 4 | Accessory Voltage |
| 19 | PK/BK | 1039 | Ignition 1 Voltage |
| 20 | RD/WH | 840 | Battery Positive Voltage |
| 21 | - | - | Not Used |
| 22 | WH | 1310 | EVAP Canister Vent Solenoid Control |
| 23 | - | - | Not Used |
| 24 | D-GN | 890 | Fuel Tank Pressure Sensor Signal |
| 25 | - | - | Not Used |
| 26 | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal |
| 27 | D-BU | 1161 | APP Sensor 1 Signal |
| 28 | - | - | Not Used |
| 29 | TN | 2759 | Low Reference |
| 30 | WH/BK | 1164 | 5-Volt Reference - B |
| 31 | - | - | Not Used |
| 32 | L-BU | 20 | Stop Lamp Switch Signal |
| 33 | - | - | Not Used |
| 34 | PK | 2014 | Coolant Pump Relay Control |
| 35-36 | - | - | Not Used |
| 37 | D-GN/WH | 465 | Fuel Pump Relay Control |
| 38 | BN | 5069 | Powertrain Relay Control |
| 39 | - | - | Not Used |
| 40 | BN/WH | 419 | MIL Control |
| 41 | L-BU | 1162 | APP Sensor 2 Signal |
| 42 | - | - | Not Used |
| 43 | TN | 1274 | 5-Volt Reference - 1 |
| 44-45 | - | - | Not Used |
| 46 | PU | 420 | TCC Brake Switch/Cruise Control Release Signal |
| 47 | GY | 2709 | 5-Volt Reference - 1 |
| 48 | YE | 447 | Starter Relay Coil Control |
| 49-50 | - | - | Not Used |
| 51 | D-GN | 335 | Low Speed Cooling Fan Relay Control |
| 52 | - | - | Not Used |
| 53 | BN/WH | 379 | CPP Switch Signal |
| 54 | D-GN | 1433 | PNP/Clutch Start Switch Signal |
| 55 | - | - | Not Used |
| 56 | BK/WH | 2751 | 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:
- • 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.