1. Turn the ignition to the ON position.
2. Connect the Scan Tool .

Are any of the DTCs present?

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Go to Step 2

Go to Step 3

1. Note the DTCs.
2. Using the Scan Tool clear all the DTCs.
3. Perform the Functional Check for the appropriate system.
4. Use the Scan Tool to test for the DTCs.

Are any of the DTCs present?

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Go to Step 4

System OK

Perform the Functional Check for the appropriate system.

Does the system function properly?

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System OK

Go to Step 4

Refer to the Self-Diagnostics for diagnosis.

Does the system function properly?

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System OK

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