Chrysler PT Cruiser battery light intermittently illuminates after starting despite new battery and good alternator on Chrysler PT Cruiser

Some Chrysler PT Cruiser owners report experiencing intermittent illumination of the battery light after starting, even with a new battery and a functioning alternator. This issue may indicate low battery voltage, despite the alternator appearing to work correctly. Owners have noted that problems with the battery temperature sensor could contribute to this situation, particularly if the charging voltage hovers around 14 volts. Additionally, some owners suspect that there might be an issue with the PCM signal if both the alternator and battery are in good condition. To address these concerns, it is advisable to investigate the battery temperature sensor, check the PCM signal, and perform a scan test to identify any trouble codes that may not trigger the check engine light.