1. Connect a scan tool to the Data Link Connector (DLC).
2. Inspect the scan tool for Driver Door Module (DDM) DTCs.

Are any DDM DTCs present?

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Go to Step 2

Go to Step 3

The DDM DTCs include the following diagnostic tables:

Are any of the above DDM DTCs present?

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Go to the applicable DDM DTC table.

Go to Diagnostic System Check - Power Door Systems

Inspect the scan tool for Memory Seat Module DTCs.

Are any MSM DTCs present?

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Go to Step 4

Go to Memory Seats System Check

The following list includes all of the MSM DTCs covered in the Power Seats system:

Are any of the above MSM DTCs present?

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Go to the applicable MSM DTC table.

Go to Step 5

The following list includes the MSM DTCs not covered in the Power Seats system:

Are any of the above MSM DTCs present?

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Go to Lumbar Support System Check

Go to Step 6

The following list includes the possible MSM DTCs associated with the class 2 bus:

Are any of the above MSM DTCs present?

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Go to Diagnostic System Check - Data Link Communications

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