Description OBD-II Trouble Code Description for P0641 Hummer Sensor Reference Voltage “A” Circuit/Open What does this mean? OBD2 Code P0641 Hummer definition: The Service Manual says The Engine Control Module (ECM) detects a voltage out of tolerance condition on the 5V reference 1 or 2 bus for more than 0.5 seconds. Symptoms Possible sumptoms of…
Category: HUMMER
Hummer P0642 Sensor Voltage Circuit A Low Voltage
Description OBD-II Trouble Code Description for P0642 Hummer Sensor Reference Voltage “A” Circuit Low What does this mean? OBD2 Code P0642 Hummer definition: The ECM has detected that the 5 volt reference voltage is too low Symptoms Possible sumptoms of OBD code P0642 Hummer – Engine Light ON (or Service Engine Soon Warning Light) Causes…
Hummer P0640 Manifold Intake Air Heater
Description OBD-II Trouble Code Description for P0640 Hummer Intake Air Heater Control Circuit What does this mean? OBD2 Code P0640 Hummer definition: The intake air (IA) heater is located in the air inlet tube and is used to warm the incoming air to aid in starting the engine and for proper cylinder combustion. The glow…
Hummer P0639 Throttle Actuator Control Range/Performance
Description OBD-II Trouble Code Description for P0639 Hummer Throttle Actuator Control Range/Performance The OBD2 Code Information Be Applicable For Hummer: 2009 Hummer H3T Alpha,2008 Hummer HX Concept,2008 Hummer H3 Wagon Concept,2008 Hummer H3 Alpha,2008 Hummer H2,2007 Hummer H3 Open Top,2007 Hummer H3X,2007 Hummer H3R Off Road Concept,2007 Hummer H2 Safari Concept,2006 Hummer H3,2006 Hummer H2…
Hummer P0637 Power Steering Control Circuit High
Description OBD-II Trouble Code Description for P0637 Hummer Power Steering Control Circuit High The OBD2 Code Information Be Applicable For Hummer: 2009 Hummer H3T Alpha,2008 Hummer HX Concept,2008 Hummer H3 Wagon Concept,2008 Hummer H3 Alpha,2008 Hummer H2,2007 Hummer H3 Open Top,2007 Hummer H3X,2007 Hummer H3R Off Road Concept,2007 Hummer H2 Safari Concept,2006 Hummer H3,2006 Hummer…
Hummer P0638 Throttle Actuator Control Range/Performance
Description OBD-II Trouble Code Description for P0638 Hummer Throttle Actuator Control Range/Performance What does this mean? OBD2 Code P0638 Hummer definition: The Powertrain Control Module (PCM) compares the actual Throttle Possition (TP) with the target TP when the engine is running. If the difference is more than the specification, the PCM determines that there is…
Hummer P0636 Power Steering Control Circuit Low
Description OBD-II Trouble Code Description for P0636 Hummer Power Steering Control Circuit Low The OBD2 Code Information Be Applicable For Hummer: 2009 Hummer H3T Alpha,2008 Hummer HX Concept,2008 Hummer H3 Wagon Concept,2008 Hummer H3 Alpha,2008 Hummer H2,2007 Hummer H3 Open Top,2007 Hummer H3X,2007 Hummer H3R Off Road Concept,2007 Hummer H2 Safari Concept,2006 Hummer H3,2006 Hummer…
Hummer P0634 Transmission Control Module Overtemperature
Description OBD-II Trouble Code Description for P0634 Hummer PCM/ECM/TCM Internal Temperature Too High The OBD2 Code Information Be Applicable For Hummer: 2009 Hummer H3T Alpha,2008 Hummer HX Concept,2008 Hummer H3 Wagon Concept,2008 Hummer H3 Alpha,2008 Hummer H2,2007 Hummer H3 Open Top,2007 Hummer H3X,2007 Hummer H3R Off Road Concept,2007 Hummer H2 Safari Concept,2006 Hummer H3,2006 Hummer…
Hummer P0635 Power Steering Control Circuit
Description OBD-II Trouble Code Description for P0635 Hummer Power Steering Control Circuit The OBD2 Code Information Be Applicable For Hummer: 2009 Hummer H3T Alpha,2008 Hummer HX Concept,2008 Hummer H3 Wagon Concept,2008 Hummer H3 Alpha,2008 Hummer H2,2007 Hummer H3 Open Top,2007 Hummer H3X,2007 Hummer H3R Off Road Concept,2007 Hummer H2 Safari Concept,2006 Hummer H3,2006 Hummer H2…
Hummer P0633 Immobilizer Key Not Programmed
Description OBD-II Trouble Code Description for P0633 Hummer Immobilizer Key Not Programmed – ECM/PCM The OBD2 Code Information Be Applicable For Hummer: 2009 Hummer H3T Alpha,2008 Hummer HX Concept,2008 Hummer H3 Wagon Concept,2008 Hummer H3 Alpha,2008 Hummer H2,2007 Hummer H3 Open Top,2007 Hummer H3X,2007 Hummer H3R Off Road Concept,2007 Hummer H2 Safari Concept,2006 Hummer H3,2006…