Possible causes
– Engine Control Module/Powertrain Control Module poor electrical connection
– Low battery voltage
– Poor battery connection
– Low battery voltage
– Poor battery connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
DODGE Technical Service Bulletins for P2509 code
2006 DODGE RAM 2500 ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
2006 DODGE RAM 2500 DIGITAL INSTRUMENT PANEL
2006 DODGE RAM 3500 ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
2006 DODGE RAM 3500 DIGITAL INSTRUMENT PANEL
2007 DODGE RAM 2500 ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
2007 DODGE RAM 2500 DIGITAL INSTRUMENT PANEL
2007 DODGE RAM 3500 ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
2007 DODGE RAM 3500 DIGITAL INSTRUMENT PANEL