Nissan Sentra won't crank despite good battery and functioning lights on Nissan Sentra

Some Nissan Sentra owners report experiencing issues with their vehicles not cranking despite having a good battery and functioning lights. Common causes include a bad starter, which can prevent the engine from starting, and a faulty alternator that may also hinder proper starting. Additionally, some owners encounter electrical issues that result in no response when attempting to start the car. Rodent damage, where animals chew through essential cables and wires, has also been reported to lead to starting problems. Furthermore, if the security lamp remains lit while trying to crank the engine, it could risk damaging the Engine Control Module (ECM) or the Immobilizer Control Unit (IMMU). It is recommended for owners facing these issues to have their vehicle inspected by a qualified mechanic to identify and resolve the underlying problems.