I'm trying to debug an issue with my 99 where the fuel pump runs continuously, when the key is in the acc position w/o a jumper in the diagnostics box. It's burned out a fuel pump and that gets both expensive and frustrating.
I'm sorting my way through the electrical system and I realize this car has once been rewired, and then changed back by someone else, so it's a bit of a murder mystery story.
I've traced the power for the fuel pump back to the FP relay behind the dash. Then I traced the green wire from the relay over to the large flat RHS connector, where it goes into the dash. The wire diagram says power plant module, but I find no actual module. It just plugs into the dash.
Then I traced it from the dash to plug, to a connector that seems to be for the passenger airbag kill switch next to the cigarette lighter, bottom center of the console. That switch, and the lighter are missing from my car. Does missing that switch screw up the fuel pump circuit somehow so it runs in accessory as well as the start/run positions? Why on earth would airbags be related to the FP relay?
As fascinating as it is sorting through wire diagrams circuit by circuit, it's getting a bit irritating. Any clues would be greatly appreciated!