Important: Before clearing the DTCs, use the scan tool Capture Info function to save the Freeze Frame and the Failure records for reference. The control module's data is deleted once the Clear Info function is used.

Was the Powertrain On Board Diagnostic (OBD) System Check performed?

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Go to Step 2

Go to Powertrain On Board Diagnostic (OBD) System Check

Is the DTC P0370 also set?

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Go to DTC P0370 Timing Reference High Resolution System Performance

Go to Step 3

Important: The new PCM must be programmed. Refer to Powertrain Control Module Replacement/Programming .

Replace the PCM.

Is the action complete?

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Go to Step 4

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1. Using the scan tool, clear the DTCs.
2. Start engine.
3. Allow the engine to idle until the engine reaches the normal operating temperature.
4. Select DTC and the Specific DTC function.
5. Enter the DTC number that was set.
6. Operate the vehicle within the Conditions for Setting this DTC until the scan tool indicates the diagnostic Ran.

Does the scan tool indicate the diagnostic Passed?

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Go to Step 5

Go to Step 2

Does the scan tool display any additional undiagnosed DTCs?

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Go to the applicable DTC Table

System OK