That sounds like quite an electrical problem. My keyfob still unlocked the other doors. Your numerous problems could be all connected. Possibly a main ground somewhere. Firewall, block, but I would definitely check all the wiring running through the rocker panels. Very easy place to collect salt, rust and dirt. Good luck. These are great vehicles. I've had my '02 since 2005 and still going strong...Thank you, I will. I had it pulled apart the other day and had full 12v at the power plug (4 wires) from the firewall/frame and that even powered up into the module. Did your KeyFab still operate the other 3 doors?
This is just one in a chain of electrical gremlins I've encountered over the past 3 months.
((( Initial ABS/Brake lights dinging constantly. [replaced wheel hubs]
Fuel pump ground going out leading to stalling while driving and no start issues and a new fuel pump [ which still didn't start till we fixed a couple grounds, replaced Ignition switch, Cam Sensor, MAP sensor, swapped entire fuse box, new battery].
Fuel Gauge occasionally decides it wants to work. RPM gauge has done the same.
Fog Light button pressed/depressed turns the radio lights on and off.
Cruise Control works for 10-15 seconds and shuts off.
I've had the shifter button lock on me after putting it into park and not shutting off the truck and trying to shift back into Drive. )))
I keep telling myself it's a good new-to-me truck once I figure this electrical out.:bonk::bonk::bonk: