1968-Present E-Series Van/Cutaway/Chassis Econolines. E150, E250, E350, E450 and E550

no voltage to the inertia switch!!

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Old 01-11-2015, 03:28 PM
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no voltage to the inertia switch!!

Well, to begin, yesterday I lost two hot coffees in my 02 van. In one day!! Was not a happy camper! 02 e250 5.4l van drove fine heat was on. It had a pool of coffee on drivers side floor in a pool till I pulled over to clean it.
Cleaned it up everything was fine. Drove about 6 miles and had it parked for about 5 hours.Started up fine. Idled and then died. No fuel problem. Checked both sides of @ inertia switch while cycling the key. Nothing on either end. Checked fuses and all is well. No power @ F 30 fuse. Any idea what wire to check ahead of the fuse panel?
 
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Old 01-11-2015, 03:59 PM
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Both the ECM self protection (shorts) and Anti-theft systems shut down the ECM and turns off the Fuel Pump to keep you from starting the Engine. Possible a channel in the door step is full of Coffee and has a wire connector laying in it? or just a bad Fuel Pump Relay? I would pull the Mat up and step pad out and have a look around........
 
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Old 01-12-2015, 07:46 AM
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Looking at my '02 EVTM the only fuse even close to "F 30" feeds the DRL (if present) module and headlights----which are you checking?
 
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Old 01-13-2015, 05:28 AM
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I did take a look under the mat. Everything looked ok. No connectors under floor mat/pad or step on drivers side.Is there any important connectors inside the dogbox cover?
 
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Old 01-13-2015, 05:54 AM
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Unhappy fuel pump relay circuit troubleshooting

Originally Posted by JWA
Looking at my '02 EVTM the only fuse even close to "F 30" feeds the DRL (if present) module and headlights----which are you checking?
I got the idea of fuse F30 from an earlier thread on this site for no fuel pump power.I have no power at all feeding the inertia switch. I also have a 15 amp fuse above the 5amp fuse in the corner of the fuse panel (under the dash) with no power in or out. Is there a circuit to check on the fuse panel that would rule out the fuel pump relay circuit? If there are any ideas of where to check for power up circuit from fuel pump relay I would appreciate it.
 
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Old 01-13-2015, 06:00 AM
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If you intend to DIY repairs especially electrical trouble shooting like this you'd be best advised to obtain an EVTM or wiring diagrams book for your year chassis. Not only do they show individual circuits fuse panels and relay positions are shown---extremely handy publication to have around.

Here's an image of the battery junction box (BJB) or the one found under the hood---shown in yellow is the fuel pump reply fuse and relay itself, double check these:


 
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