Cooling Fan Always On
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Cooling Fan Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Engine Cooling Schematics Connector End View Reference: Cooling System Connector End Views DEFINITION: One or both engine coolfan motors run continuously in high or low speed. |
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| 1 | Did you perform the Engine Cooling Diagnostic System Check? | Go to Step 2 | Go To Diagnostic System Check - Engine Cooling |
| 2 | Turn ON the ignition, with the engine OFF. Are one or both coolfans ON? |
Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 | Are both coolfans running continuously? | Go to Step 5 | Go to Step 4 |
| 4 | Remove the coolfan 3 relay. Did the right coolfan turn OFF? |
Go to Step 6 | Go to Step 7 |
| 5 | Repair the short to voltage in the left coolfan motor supply voltage circuit. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 8 | - |
| 6 | Repair the short to voltage in the left coolfan low reference circuit. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 8 | - |
| 7 | Repair the short to voltage in the right coolfan motor supply voltage circuit. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 8 | - |
| 8 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |