Fault Codes/Discovery Energy, LLC (Rehlko)/P0659Discovery Energy, LLC (Rehlko)P0659WarningGeneralWhat This Code MeansP0659Possible Causes•The actuator power supply is higher than expectedSuggested Actions1Check the relay coil and leads for power and continuity2Check the battery and battery charging alternatorRelated Discovery Energy, LLC (Rehlko) Fault CodesP0686P0687P0658P1518 3464 13P0657P1519 3464 13P0653P1609P0643P2100P0642P2102Browse all Discovery Energy, LLC (Rehlko) fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for P0659 on your specific Discovery Energy, LLC (Rehlko) unit — cited to the OEM manual, not a forum guess.Your question about P0659GET THE ANSWERFree account required — we'll bring your question with you.