For 1990-2009 cars

## Cooling Fan Always On 3.4L (LA1)

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Engine Cooling Schematics DEFINITION: One or both engine cooling fan motors run continuously in high or low speed modes.
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 cooling fans running all the time? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
3 | Are both cooling fans running continuously? | Go to Step 5 | Go to Step 4
4 | Remove the cool fan mode relay. Did the eng cool RH fan turn OFF? | Go to Step 6 | Go to Step 7
5 | Repair the short in the engine cool LH fan supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 8 | --
6 | Repair the short in the engine cool LH fan low reference circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 8 | --
7 | Repair the short in the engine cool RH fan 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

## Cooling Fan Always On 2.2L (L61)

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Engine Cooling Schematics DEFINITION: One or both engine cooling fan motors run continuously in high or low speed modes.
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 cooling fans running all the time? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
3 | Are both cooling fans running continuously? | Go to Step 5 | Go to Step 4
4 | Remove the cool fan mode relay. Did the eng cool RH fan turn OFF? | Go to Step 6 | Go to Step 7
5 | Repair the short in the engine cool LH fan supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 8 | --
6 | Repair the short in the engine cool LH fan low circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 8 | --
7 | Repair the short in the engine cool RH fan 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