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+).
If the fuel pump starts, check the wiring from the relay panel to the fuel pump and perform the Fuel Pump / DME Relay Primary Supply Voltage check. If the fuel pump does not start with power supplied directly at the pump, the fuel pump is bad and should be replaced.emove the Fuel Pump / DME Relay and check for supply voltage (approximately 12 VDC) from the battery. Insert a male spade connector into the relay board terminal to make checking the voltage easier. If no voltage is present, the battery is dead or the wire from the battery to the relay panel is broken / disconnected.