Description
OBD-II Trouble Code Description for P0561 GMC
System Voltage Unstable
What does this mean?
OBD2 Code P0561 GM definition:
The battery supplies electricity to the ECM even when the ignition switch is OFF. This electricity allows the ECM to store data such as DTC history, freeze frame data, fuel trim values and other data. If the battery voltage falls below a minimum level, the ECM will conclude that there is a fault in the power supply circuit. The next time the engine starts, the ECM will turn on the MIL and a DTC will be set.
Symptoms
Possible sumptoms of OBD code P0561 GM
– Engine Light ON (or Service Engine Soon Warning Light) – Slow engine start – Low battery power
Causes
Possible causes of OBD code P0561 GM
– Loose or missing alternator drive belt – Faulty alternator – Battery defective – Open or short system voltage circuit The Error code is generally activated on detection of the following conditions: The P0561 GM code is detected when there is an open in ECM back-up power source circuit
Possible Solutions
The OBD2 Code Information Be Applicable For GMC:
2013 GMC Terrain Denali,2013 GMC Acadia,2011 GMC Sierra All Terrain HD Concept,2010 GMC Terrain,2010 GMC Granite Concept,2009 GMC Sierra Hybrid Crew Cab,2008 GMC Yukon Hybrid,2008 GMC Denali XT Concept,2007 GMC Yukon XL,2007 GMC Yukon Denali,2007 GMC Yukon,2007 GMC Sierra Denali,2007 GMC Sierra Classic,2007 GMC Sierra 3500 HD SLT Crew Cab,2007 GMC Sierra 2500 HD SLT Extended Cab,2007 GMC Sierra,2007 GMC Acadia,2005 GMC Sierra Denali 1500 Crew Cab,2005 GMC Graphyte Concept,2005 GMC Envoy XL Denali,2005 GMC Envoy Denali
Note:
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