2017-10-10
Illuminated battery warning light on the dashboard
Difficulty starting the engine or complete failure to start
Dimming or flickering headlights and interior lights
Loss of power to electrical components such as power windows or radio
Reduced fuel economy
Faulty battery or alternator
Loose or corroded battery or alternator connections
Electrical system overload
Failed voltage regulator
Malfunctioning engine control module (ECM)
Battery:
Replace the battery or alternator if either is faulty
Check and repair any damaged or corroded battery or alternator connections
Reduce electrical system load or upgrade to a higher capacity alternator
Replace the voltage regulator if necessary
Replace the engine control module (ECM) if it is malfunctioning