There isn't a dedicated battery temperature sensor in the traditional sense (like a sensor that directly measures battery temperature and sends a signal to the PCM) on a 2000 Dodge Caravan. The vehicle's computer system doesn't actively monitor battery temperature for charging control in the same way some newer vehicles do. The charging system relies on voltage and current sensing to regulate charging.
While some advanced onboard diagnostics *might* infer battery temperature based on other parameters (like voltage drop under load), there's no single sensor specifically for battery temperature that you can easily locate. Any temperature readings related to the battery would be indirect and inferred.
