Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Engine Cooling Schematics Connector End View Reference: Cooling System Connector End Views DEFINITION: The auxiliary cooling fan is always ON. | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Is the auxiliary cooling fan always ON? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections |
3 | Disconnect the pusher cooling fan relay located in the left rear fuse block. Does the auxiliary cooling fan turn OFF? | Go to Step 5 | Go to Step 4 |
4 | Repair the short to voltage in the auxiliary cooling fan motor supply voltage circuit. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 11 | -- |
5 | Probe the control circuit of the auxiliary fan relay with a test lamp connected to battery positive voltage. Does the test lamp illuminate? | Go to Step 8 | Go to Step 6 |
6 | Inspect for poor connections at the pusher cooling fan relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 11 | Go to Step 9 |
7 | Inspect the auxiliary cooling fan relay control circuit for a short to ground. Did you find and correct the condition? | Go to Step 11 | Go to Step 7 |
8 | Inspect for poor connections at the harness connector of the engine control module (ECM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
9 | Replace the pusher cooling fan relay. Did you complete the replacement? | Go to Step 11 | -- |
10 | Replace the ECM. Refer to Control Module References for replacement, setup and programming. 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 3 |
