1. Turn the ignition switch to the OFF position.
2. Connect a Scan Tool to the data link connector (DLC).
3. Turn the ignition switch to the ON position.
4. Attempt to establish communication with the PZM.

Does the scan tool communicate with the PZM?

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Go to Step 2

Go to Diagnostic System Check - Data Link Communications in Wiring Systems

Select display PZM DTC function with the scan tool.

Are any DTCs stored?

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Go to Diagnostic Trouble Code (DTC) List/Type

Go to the appropriate System Check