Cooling Fan Always On (Always On in Low Speed)
WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Reference Table
| Symptom | Causes |
|---|---|
| Fan motor always on in high speed | Short to ground in the fan 2 relay coil control circuits. |
| Fan motor always on in low speed |
|
Cooling Fan Always On (Always On in Low Speed)
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Engine Cooling Schematics Connector End View Reference: Cooling System Connector End Views DEFINITION: The cooling fan motor is always on in low speed. |
|||
| 1 | Did you review the Cooling System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Engine Cooling |
| 2 |
|
Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 | Remove the fan 1 relay from the underhood fuse block. Is the fan motor running continuously? |
Go to Step 4 | Go to Step 5 |
| 4 | Repair the short to voltage in the fan motor supply voltage circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 7 | - |
| 5 | Test the fan 1 relay coil control circuit for a short to ground. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 7 | Go to Step 6 |
| 6 | Replace the fan 1 relay. Refer to Cooling Fan Relay Replacement . Did you complete the replacement? |
Go to Step 7 | - |
| 7 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |