Cooling Fan Always On L61
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Engine Cooling Schematics Connector End View Reference: Cooling System Connector End Views DEFINITION: The engine cooling fan motor runs continuously in high or low speed. | |||
1 | Did you perform the Engine Cooling Diagnostic System Check? | Go to Step 2 | |
2 | Turn the ignition ON, with the engine OFF. Is the cooling fan operating at low speed? | Go to Step 4 | Go to Step 3 |
3 | Is the cooling fan operating at high speed? | Go to Step 5 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
4 | Remove the cool fan low relay. Did the fan turn OFF? | Go to Step 7 | Go to Step 6 |
5 | Remove the cool fan high relay. Did the cooling fan turn OFF? | Go to Step 8 | Go to Step 6 |
6 | Repair the cooling fan motor supply voltage circuit for a short to voltage. Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | -- |
7 | Inspect for poor connections at the cool fan low relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 9 |
8 | Inspect for poor connections at the cool fan high relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
9 | Replace the cool fan low relay. Did you complete the replacement? | Go to Step 11 | -- |
10 | Replace the cool fan high relay. Did you complete the replacement? | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
