Question about 1998 Dodge Ram 1500 4WD

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ASD is there a kill switch or reset switch for the asd when in an accident fuel pump not cutting on at all have checked relays under hood and fuses

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Try resetting the PCM/ECM by taking off your battery terminals. Best to leave them off overnight. The pcm controls the ASD/Fuel pump and injectors circuit.

Posted on Oct 25, 2013

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1998 dodge 2500 4X4 diesel. does it have a kill switch

Posted on Jan 11, 2009

  • dixon1752002 Jan 11, 2009

    i have a 1998 diesel 2500 4x4 that will not start fuel pump works but will noy start. it will crank when you turn the switch on and off a few times, but when you turn it off it will not start.

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What part are you calling the ASD? Yes there is a fuel pump cut off switch.

Posted on Oct 14, 2008

  • pattygortney
    pattygortney Nov 04, 2012

    asd relay is there a way to test it before i go buy another one

  • yadayada
    yadayada Nov 04, 2012

    You had an accident then?? That is what triggers the ASD to turn off the fuel pump.

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1 Answer

I cant find the fuse for the fuel pump on my 1990 Plymouth Voyager. It is NOT on the fuse block on the firewall. I cant find any fuses under the hood.


The fuel pump has no fuse, it is power as described below.
The two main fuel pump power feeds involve the ASD (Auto Shut-down Relay) which disables the fuel pump, fuel injectors, ignition coil and Oxygen sensor after the loss of a signal from the distributer. The direct power circuit for the pump travels through the relay from a white fusible link which is located under the hood on the left fender panel, along with the ASD relay. The other power feed for the ASD comes from fuse #13 in the fuse block. There's a lot more involved in the operation and troubleshooting of these circuits. So please make sure your diagnosis is correct before replacing the fuel pump, and yes, you do have to remove the fuel tank

Jul 01, 2016 | Plymouth Cars & Trucks

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No power to fuelpump or coil or coil driver so I ran a jumper wire and fuelpump and all started working what is causing no power


The common component to the coil and fuel pump is the ASD relay. The ASD (auto shutdown relay) is activated from the (ECM) engine control module by the ignition key, but in the event of a roll over or crash the ASD relay kills power to the engine and fuel.
26111978-lkayiuev2pawqft0guju1hyb-3-0.gif Above is a typical under hood power distribution. I will usually look for a identical relay and swap it with the ASD relay and see if it corrects the problem. If this is the circuit then the key switch and safety circuits need to be checked.

Feb 28, 2016 | Cars & Trucks

1 Answer

Where is the kill switch located at on a 2001 Plymouth Neon?


Doesn't have a kill switch , check ASD relay in the under hood fuse/relay box . Or fuel pump relay . Does your vehicle have spark at spark plugs ? Try spraying some carburetor cleaner into the throttle plate an see if it try's to start. The ASD relay powers the injectors an ignition coils .

Feb 02, 2016 | 2001 Plymouth Neon

1 Answer

2003. Where is fuel pump reset switch?


Sorry ,dodge doesn't have one ! No fuel pressure ? Can you hear the fuel pump run ? , check the ASD relay in under hood fuse / relay box . ASD - auto shut down relay supply's power to fuel pump relay an to ignition system an O2 heaters .

Oct 31, 2015 | Dodge Grand Caravan Cars & Trucks

1 Answer

1997 neon will not start


Check the ASD relay in under hood fuse/ relay box. ASD stands for automatic shut down relay. Powers up pcm ,fuel injectors and ignition system an O2sensor heaters .crank over the car an check for power at O2sensor heater fuse in the underhood fuse box ,no power means bad relay !

Jan 18, 2015 | Cars & Trucks

1 Answer

No power to fuel pump 1999 jeep wrangler


do you know how it really works? most don't
the PCM controls the pump and the ASD relay is related.
all fuses good. in all fuse boxes.
car dont start , is that it, why not say
or starts for 3 seconds and dies, (ASD does that)
why not post the symptoms and ask for real help, not this guessing game.??????
ok ill pretend, no start
so is the ASD closing at all? cranking?? yes/no
if no bad news. or fuse blow, ask why.?
yes, but the relay drops out. well bingo.
the relay killed the pump power, on PURPOSE by DESIGN.
that is how it works. to stop CRASH and BURN as seen on TV and all movies, (it seems)

so why does the ASD drop out, well that too is easy and is
fully covered in the FSM.
but is listed here, in short, facts page.

is the IMMO faulting? SKIM?
my wrangler has a stealth IMMO lamp, so the creeps that steal cars
wont know what the red lamp glowing means (no ICON !)
do you? see operators guide under how to start a car and read said lamps.
8 ways, or less. to kill spark , fuel, and all.

http://www.fixkick.com/Jeeps/ASD.html




Sep 01, 2014 | 1999 Jeep Wrangler

1 Answer

No power going to the fuel pump


first check all fuses.
well if the security lamp is on, and the IMMobilizer light glows
it will never run. (by design) (2 seconds max)
so are the lights glowing?
no power going. (when,)
did you read the FSM on the staged events to get engine started.
my wild guess? (sad i have to ask) is it wont start?
1: IMMO not active
2: battery charged volts near 12.6vdc rested.
3: starter cranks fast. and ASD closes
4: ASD relay sees good spark and CKP, and CMP sensors.
5: engine starts, if #4 is good then it sustains running.
if not ASD drops out in 2 seconds. killing INJECTION.
it cuts the fuel pump too.

the PCM will throw a DTC error code (did you scan it cranking ??)
for if the ASD fails to OUTPUT 12v. at step 3.

the PCM closes it, then looks, and if output is bad, it ends this event and logs the failure..

to check the pump , it takes 2 people
one at the key, and one at the pump wires.
or you WILL miss the 2second event.

one way to avoid all that is to hold finger on the ASD relay
and keyon and see if it clicks closed.
if not ., no need to check pump ,its LAST in the chain,
if the ASD clicks and drops out, during that click the pump does run
for 2 seconds, min.,
if the ASD is dead, check the PCM control line to the ASD for
making coil energized in the ASD relay, (12vdc across it for 2seconds)
if the coil is energized, and the DTC throws, for bad ASD , it is.
if the ASD goes, hot only for 2 seconds, again use any $9
scan tool to see the error.
here is the scan too tests. most books forget.
1: scan tool connected.
2; Crank engine for 5 seconds, (min)
3: release key. BINGO, the ECU tells you why the ASD dropped out.
eg: ASD error, CMP error, CKP errors or others (spark?)
does RPM read near 250rpm cranking? on the scan tool?
Is TPS throttle angle near 100% (cutting fuel) ? bad tps. (cut wires)


fixing cars without a $9 scan tool , as sold on feabay is 100x harder.
get the tool and use it.
they rent them cheap or loan them for free.
not to be confused with a code reader, which are near useless.
imo.....


Feb 11, 2014 | 2004 Jeep Grand Cherokee

1 Answer

Re: 1993 Dodge Dakota, where might I find the fuel pump reset button or inertia switch? Thank you.


  • You have an Automatic Shut Down Relay or "ASD Relay" not so much a "switch." The ASD relay inside the power distribution center which is under the hood on the left corner of the engine compartment. Under the lid is a legend that will pinpoint it's location in said box. I would look at this if your having problems with the fuel pump. Should you need to replace the pump the tank must be dropped for this vehicle.


11_7_2011_9_48_17_pm.gif


  • Hope this helps.

Nov 07, 2011 | 1993 Dodge Dakota

1 Answer

No power to fuel pump


Try looking at the fuse under the hood make sure your getting 12 volts at fuse.If fuse is good but no power try checking the fuel pump relay. you can switch the relay with another system that you know works. Lastly Check you Auto Shutdown Relay (ASD). If there has been an accident this relay will kill your fuel pump power. good luck.

Apr 11, 2010 | 1998 Ford Explorer

1 Answer

Where is the emergency fuel cut off switch located?


The neon don't have one, check the fuse and relay's. The fuel pump is also controlled by the Auto Shut down relay (ASD). The power supplied to the fuel pump. Ignition coil, fuel injectors, and parts of the power module is controlled by the logic module through the Automatic Shutdown Relay (ASD). The ASD relay is closed (allowing power to flow through it) when the ignition is first turned on. If the signal from the ignition reference is lost while the engine is running  the logic module cuts power to the ASD, which in turn removes power from the fuel pump, ignition coil, injectors and those parts of the power module.  This causes the engine to shut down. Good luck and hope this helps. 

Jun 29, 2009 | Plymouth Neon Cars & Trucks

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