Remote sense—a popular feature on many Delco Remy alternators—utilizes a small sense wire that reads

the actual battery voltage and signals the regulator to increase voltage output as needed, ensuring constant battery voltage.
When you remove and replace an alternator with remote sense, you need to follow an exact removal and replacement sequence to avoid damaging the internal resistor and voiding your warranty. Our Tech Tip video helps you understand the proper steps for removing and installing the alternator equipped with remote sense without damaging it. It also explains why damage can occur when installations are not completed properly.
Remote Sense Explained & Replacement Procedures
Watch this short
Tech Tip Video on remote sense.