Fault Codes/Discovery Energy, LLC (Rehlko)/P0606Discovery Energy, LLC (Rehlko)P0606WarningGeneralWhat This Code MeansP0606Possible Causes•Either the ECM did not pass a functional test or the boot ROM is corrupt.Suggested Actions1Clear the DTC code and turn the ECM power off. Wait fifteen minutes and check if the code is regenerated.2Replace the ECM. Refer to the Electronic Control Module (ECM) section.Related Discovery Energy, LLC (Rehlko) Fault CodesP0638P0642P0605P0643P0604P0653P0603P0657P0563P0658P0509P0659Browse all Discovery Energy, LLC (Rehlko) fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for P0606 on your specific Discovery Energy, LLC (Rehlko) unit — cited to the OEM manual, not a forum guess.Your question about P0606GET THE ANSWERFree account required — we'll bring your question with you.