1997 Chrysler Sebring w/2.5L V6.Customer complaint: Blows 20A ASD fuse - sometimes twice in one day, other times runs fine for more than a week.I can duplicate the problem about every 4-5 minutes. I have installed an amp meter in the ASD fuse socket - when I jerk the throttle open the meter will pin to 40+ amps (very intermittant. It might take several times to duplicate.) It quickly returns to the normal 3-5 amp draw - often quickly enough that it doesn't even trip a 20A circuit breaker in series with the amp meter (but instantly blows the fuse if it is inserted)Unfortunately, more often than not, the circuit breaker will trip.I am at my wits end on this one. I have checked and rechecked the wiring and components associated with the ASD relay feeds. Obviously - I'm missing the problem!Any tips would be greatly appreciated - Thanks.
Why don't you do a amp test on the fuel pump circuit and keep in mind that if a fuse blows black inside that indicates a short. Hope that helps and best of luck.By the way I'd try supplying the ASD circuit with a whole new ground and then see what occurs bec I still believe that its a wiring issue or bad ground or bad connection etc. Rick is right bec the PCM does monitor and control the ASD relay circuit but even the PCM could have a bad ground so check the grounds.
Leanne, are you a Chrysler tech? First I kind of find it odd that GTC thinks that the ASD receives inputs from the fuel pump, crank sensor, distb and others since the JTEC pcm receives inputs and outputs and controls the ASD. You are getting some kind of short or power ground. If you are a tech, you should call Chrysler's tech line and run it by them, if you aren't, and you have ALLDATA you will need to get a diagram and trace every wire in the harness that is connected to the ASD fuse and relay, and if all is ok I would look in to replacing the JTEC but only as a last resort Oh and any fault codes?
Deja Vu with this question. The ASD (Automatic Shut Down) relay receives inputs from the engine (crank position sensor and/or distributor and others) and shuts down the ignition and fuel pump if it receives no electrical pulses from the ignition that tells is the engine is running. Basically, if your engine isn't running, it figures out that gas should not be delivered, and it shuts down flow of fuel. I suspect your fuel pump is dying. Under hard acceleration, it would work harder. If it's worn, it's drawing more amperage, which is what would be blowing the fuse. Another more remote possibility is the ASD relay itself, which is in the Power Distribution Center (PDC) under the hood. When the fuse is blown, can the owner hear the fuel pump energize for a few seconds? If you can find a wiring diagram, I am willing to bet it will point to the fuel pump.
