Question about 1993 Dodge Caravan

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How do you re-set the ASD on a 93 Caravan? We changed the fuel pump recently and now it won't start. I just need to know how to re-set the auto shut down and (hopefully) we'll have her running again.

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  • hroberts74 Jul 07, 2009

    We went that way anyway. Now tracking down a replacement that fits is the trick. Just ordered one today thru the local Dodge dealership.

    Thanks for the advice. My husband just remembered today that there was a puff of smoke from the relay's when we first tried to start it after changing the fuel pump...Bad relay...

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Replace the relay

Posted on Jul 06, 2009

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1 Answer

My car turns off as soon as i start it. what does this mean?


You may have a plugged fuel filter, failing fuel pump pressure or you need to change the ASD (Auto Shut Down) relay.

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U need to check the crankshaft position sensor. The fuel pump will only have power for 2 seconds I till it sees a crank signal. It' controls the asd relay which turns on your spark and fuel

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1992 dodge caravan will not start


You would check the ASD and fuel pump relays, then for spark at the plugs.

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Replaced the fuel pump on 97 dodge mini caravan now motor wont crank like the battery is dead. tried jumping it - nothing. All lights work bright! What did I do wrong?


I would check the starter for voltage first - there is a starter relay that is grounded by the PCM. If the ASD relay is faulty the pcm won't have power. You should have battery power to the starter and power on the solenoid when you turn the key to start.

Aug 31, 2012 | Cars & Trucks

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2001 grand caravan will not start would the bcm do this


Checc your asd relay. Mine was doing same thing and asd relay would open then shut immediately. Turn key to on pos then pull relay when you put it bacc in you will feel it open then close right away. If so your camshaft or crankshaft pos sensors are most likely the issue. Checc fuel line if fuel line shuts down it is your asd I believe most def

Jul 28, 2012 | 2001 Dodge Grand Caravan

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What is the fault codes 1388 and 1389 for a 2002 Dodge Grand caravan? My engine stops while driving and won't start. It will usually start later but seems to be starved for fuel.


No voltage sensed at the PCM (powertrain control module) when the ASD (auto shut down) relay is energized. It could be the ASD relay, the PCM, possibly their relays.
If you are interested in further diagnosing the problem, I will be happy to assist you.

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She stop running on the highway, will not start?


SOUND LIKE FUEL PUMP WENT OUT.CHECK FUEL PUMP FUSE AND ASD RELAY.IF FUEL PUMP AND FUSE + ASD RELAY GOOD.PROBLEM IN THE COIL OR THE DISTRIBUTOR AND THE PCM.HAVE THE VAN SCANNED MANY THINGS WILL SHUT IT DOWN LIKE CRANKSHAFT POSITION SENSOR.

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1999 dodge caravan 3.0 liter. fuel pump relay not getting voltage


Have you checked the ASD (Automatic Shut Down) Relay? Check to see if that is getting power. Then check to see if the ASD Relay itself is good. You do not have to use any special tools/knowledge to check this. You can change this Relay out with another Relay that is the same shape and type on a function that is known working. For example: Check to see if your Front Windshield Wipers are working. Change out the ASD Relay with this Front Windshield On/Off Relay. Check the Wipers again. If it does not work, then the ASD Relay is bad. With the Front Wiper Relay in the ASD now check for power to the Fuel Pump Relay.
One additional fact: IF the Crankshaft Position Sensor is bad the Engine will not operate at all, meaning there will be no power sent to anything including the fuel pump relay!

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4 Answers

No spark and no gas now what


Hi,

If you have no spark and no fuel pump operation,I would strongly suspect the Auto Shut Down relay.
The Auto Shut Down (ASD) Relay supplies power to the ignition coil, fuel injector, electric fuel pump, and the oxygen sensor heater element as long as the key is in the START or RUN position and the Single Module Engine Controller (SMEC) is receiving a reference signal from the distributor.
If the SMEC receives no distributor reference signal for two seconds or more the SMEC interrupts power to the ignition coil, fuel injectors, electric fuel pump, and the oxygen sensor heater element by removing the ASD relay ground.

Thanks for contacting Fixya.

Jul 26, 2009 | 1996 Jeep Grand Cherokee

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