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 611 (AUTOMATIC TRANSAXLE - 4T45-E - INTRODUCTION (2 OF 2))COMPONENT LOCATORAUTOMATIC TRANSMISSION RELATED CONNECTORSTRANSMISSION CONTROL MODULE (TCM), ENGINE SIDE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Transmission Control Module (TCM), Engine Side
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Transmission Control Module (TCM), Engine Side
WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Transmission Control Module (TCM), Engine Side Connector & Terminal Parts Information
Connector Part Information
|
Transmission Control Module (TCM), Engine Side Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | TN/BK | 422 | Torque Converter Clutch Pulse Width Modulated (TCC PWM) Solenoid Valve Control |
| 2 | L-GN | 1222 | 1-2 Shift Solenoid (SS) Valve Control |
| 3 | OG/BK | 1230 | Input Speed Sensor (ISS) High Signal |
| 4-5 | - | - | Not Used |
| 6 | TN | 2501 | High Speed GMLAN Serial Data Bus - (CAN) |
| 7 | TN/BK | 2500 | High Speed GMLAN Serial Data Bus + (CAN) |
| 8 | - | - | Not Used |
| 9 | YE | 657 | TCC Release Switch Signal |
| 10 | - | - | Not Used |
| 11 | BN | 4 | Accessory Voltage |
| 12-15 | - | - | Not Used |
| 16 | PU | 401 | Output Speed Sensor (OSS) Low Signal |
| 17 | L-BU/WH | 1229 | Pressure Control (PC) Solenoid Valve Low Control |
| 18-19 | - | - | Not Used |
| 20 | YE/BK | 1223 | 2-3 SS Valve Control |
| 21-22 | - | - | Not Used |
| 23 | GY | 773 | Transmission Range Switch Signal C |
| 24-25 | - | - | Not Used |
| 26 | D-BU/WH | 1231 | ISS Low Signal |
| 27-28 | - | - | Not Used |
| 29 | BK/WH | 771 | Transmission Range Switch Signal A |
| 30 | TN | 2762 | Transmission Fluid Temperature (TFT) Sensor Low Reference |
| 31 | PK | 1039 | Ignition 1 Voltage |
| 32 | RD/WH | 840 | Battery Positive Voltage |
| 33 | OG | 1226 | Transmission Fluid Pressure (TFP) Switch Signal C |
| 34 | - | - | Not Used |
| 35 | YE/BK | 1227 | TFT Sensor Signal |
| 36 | - | - | Not Used |
| 37 | TN | 2501 | High Speed GMLAN Serial Data Bus - (CAN) |
| 38 | TN/BK | 2500 | High Speed GMLAN Serial Data Bus + (CAN) |
| 39 | WH | 776 | Transmission Range Switch Signal P |
| 40 | OG/BK | 1228 | PC Solenoid Valve High Control |
| 41 | YE | 400 | OSS High Signal |
| 42 | L-BU/WH | 20 | Stop Lamp Switch Signal |
| 43 | - | - | Not Used |
| 44 | D-BU | 1225 | TFP Switch Signal B |
| 45 | - | - | Not Used |
| 46 | YE | 772 | Transmission Range Switch Signal B |
| 47-48 | - | - | Not Used |
| 49 | BK/WH | 451 | 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.