A nonsense mutation in the leptin gene that results in a stop codon and lack of leptin production was first observed in mice in 1950. In the mouse gene, arginine-105 is encoded by CGA and only requires one nucleotide change to create the stop codon TGA.
The fuel pump relay, located deep inside the TIPM, is the most common relay to fail since it's powered on 100% of the time while you're driving. You likely found this website because your dealer wants to change your fuel pump ($600+) or TIPM ($1000+).
Dealers will replace the fuel module and fuel tank jumper wiring harness free of charge to resolve the concern. The Engine May Stall. The weight on the key ring and/or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine and increasing the risk of a crash.