DTC P0606 Control Module Internal Performance. Chevrolet Corvette 1999

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 1999 🢒 Corvette 🢒 Engine 🢒 Engine Controls - 5.7L 🢒 DTC P0606 Control Module Internal Performance

This diagnostic indicates that the PCM detects an internal microprocessor integrity fault.

The PCM is powered-up.

The PCM detects an internal microprocessor integrity fault.

•	The PCM illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.

•	The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information in the Freeze Frame and/or Failure Records.

Replace the PCM.

The numbers below refer to the step numbers on the diagnostic table.

This DTC indicates an internal PCM problem.

Step	Action	Value(s)	Yes	No
1	Did you perform the Powertrain On-Board Diagnostic (OBD) System Check?	--	Go to Step 2	Go to Powertrain On Board Diagnostic (OBD) System Check
2	Important:: Program the replacement PCM. Refer to Powertrain Control Module/Throttle Actuator Control Module Replacement . Replace the PCM. Is the action complete?	--	Go to Step 3	--
3	Select the Diagnostic Trouble Code (DTC) option and the Clear DTC option using the scan tool. Idle the engine at the normal operating temperature. Select the Diagnostic Trouble Code (DTC) option and the Specific DTC option, then enter the DTC number using the scan tool. Operate vehicle within the Conditions for Running this DTC as specified in the supporting text, if applicable. Does the scan tool indicate that this test ran and passed?	--	Go to Step 4	Go to Step 2
4	Select the Capture Info option and the Review Info option using the scan tool. Does the scan tool display any DTCs that you have not diagnosed?	--	Go to applicable DTC table	System OK