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 435 (ENGINE COOLING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL OUTPUT CONTROLS
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Scan Tool Output Controls
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Scan Tool Output Controls
WARNING: This page is about a different car, the 2006 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Engine Control Module (ECM) L61 Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| Fan Control 1 Command | General Info Outputs | The scan tool displays a commanded state of On or Off. This allows you to communicate with the ECM and activate or deactivate the cooling fan relay, manually turning the fans On and Off. |
| Fan Control 2 Command | General Info Outputs | The scan tool displays a commanded state of On or Off. This allows you to communicate with the ECM and activate or deactivate the cooling fan relay, manually turning the fans On and Off. |
Powertrain Control Module (PCM) L66 Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| Fan Relay 1 | General Info Outputs | Turns ON the cooling fan low relay. The normal commanded state of the fan relay is NONE. The PCM allows cooling fan relay control when the ignition is ON and the engine is OFF. |
| Fan Relay 2 | General Info Outputs | Turns ON the cooling fan 1, cooling fan 2 and cooling fan 3 relays. The normal commanded state of the fan relays is NONE. The PCM allows cooling fan relay control when the ignition is ON and the engine is OFF. |
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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.