Fault Codes/Discovery Energy, LLC (Rehlko)/P0653Discovery Energy, LLC (Rehlko)P0653WarningGeneralWhat This Code MeansP0653Possible Causes•Problem with 5 V sensor power supply circuit•Power supply is above 5.4 VSuggested Actions1Check electrical connection at ECM for sensor power supply circuit2Check for a short circuit to battery voltage or open circuit in sensor ground wire3Check for shorts by disconnecting the TMAP and TP sensors4Monitor the sensor power supply while reconnecting the sensors one at a time. If the voltage rises when a sensor is added, replace that sensor5Refer to the Installation and Removal Procedures sectionRelated Discovery Energy, LLC (Rehlko) Fault CodesP0657P0658P0643P0659P0642P0686P0638P0687P0606P1518 3464 13P0605P1519 3464 13Browse all Discovery Energy, LLC (Rehlko) fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for P0653 on your specific Discovery Energy, LLC (Rehlko) unit — cited to the OEM manual, not a forum guess.Your question about P0653GET THE ANSWERFree account required — we'll bring your question with you.