Question about 1998 Dodge Dakota

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Dodge ram doesn't want to start acting like its getting no fuel. scanner comes up with auto shutdown relay voltage

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Hello. this is common actually. Chrysler uses what's known as an Auto Shut Down relay. The ASD relay supplies battery voltage (12+ volts) to the fuel injectors and ignition coil(s). With certain emissions packages it also supplies 12 volts to the oxygen sensor heating elements. The ground circuit for the coil within the ASD relay is controlled by the Powertrain Control Module (PCM). The PCM operates the ASD relay by switching its ground circuit ON and OFF.


Read more: http://autotechrepair.suite101.com/article.cfm/1990_dodge_caravan_problems#ixzz0Sm4DW3Mk

Posted on Oct 02, 2009

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My van just wont crank. It has power, gas, and just had the fuel filter replaced. I listened for the pump and you can hear it. My question is why does it act like it wants to crank but acts like its out of...


does your ck engine light come on? check your fuses and relays first, in particular the auto shutdown relay, that relay supplies power to all the nessary components required to run the engine, if they are all good, ck for codes, a cam or crank sensor can cause a no start or poor run condition

Jul 24, 2012 | 1999 Dodge Caravan

1 Answer

I have a 2003 dodge dakota. 4.7l. I get codes p0685 and p0688. No start no spark. Relay is good. But voltage drops when using a voltage meter on one of the grounds in the pdc. Any live wire and that ground...


P0685 DODGE - Auto Shutdown Relay Control Circuit Failure
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)

Possible causes - ASD relay circuit is open or shorted
- Failed Auto Shutdown relay
- Failed ECM
Tech notes Check all the ECM fuses, if the fuses are OK try replacing the ASD relay. P0685 DODGE Description Short or open in Auto Shutdown (ASD) relay circuit

P0688 DODGE - Auto Shutdown Relay Control Circuit Low
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)

Possible causes - ASD relay circuit is open or shorted
- Failed Auto Shutdown relay
- Failed ECM
Tech notes Check all the ECM fuses, if the fuses are OK try replacing the ASD relay. P0688 DODGE Description The Front Control Module (FCM) has detected the supply voltage below an acceptable value

Jun 24, 2011 | 2003 Dodge Dakota Club Cab

1 Answer

I have a 1995 dodge ram 1500 and when i turn the key on it takes a minute for the truck to get fuel pressure. i changed the fuel pump. then i noticed the auto shutdown relay keeps clicking. when its done...


sounding like a failed auto shutdown relay... as you probably know, it shouldn't take a full minute to get pressure, should be instantaneous..
Best regards
Ck

Mar 12, 2011 | 1996 Dodge Ram 1500 Club Cab

1 Answer

My 1999 dodge ram will start and idel until i hit the gas and let off then it dies. it gives me a p1389 code


I would start with the auto shutdown (asd) relay it is located in the power distribution box it may have corrosion or pcm could be bad it needs to be tested it connects the fuel injectors, o2 sensor and ignition coil if the pcm dont detect a 12 volt from the asd relay it will shut off.

Feb 04, 2011 | 1999 Dodge Ram

1 Answer

I don't get juice to my hv ignition coil on my dodge ram 150, 1992. This is intermittent problem. any ideas?


Do you have Voltage (there is no juice) to the ignition switch,distributor,fuel pump or coil.

NO---Check (ASD) Auto Shutdown Relay, in engine distribution box

Oct 21, 2010 | 1992 Dodge Ram 150 Club Cab

1 Answer

1993 jeep laredo auto shutdown& fuel pump relays go crazy open & close it wont stop and car dont start


Most often a relay will act like a buzzer if it is not properly grounded. The ground signal generally comes from the computer. The auto shutdown realy feeds the fuel pump relay and therefore is shutdown relay isn't getting the proper signal it will in turn send same improper signal to pump relay. I am sending you a decent diagram of this and suggest you first make sure all body grounds are clean and secure.
http://www.scribd.com/doc/18999822/Jeep-Wiring-2
Good luck!

Dec 09, 2009 | 1993 Jeep Grand Cherokee

2 Answers

2000 dodge caravan,auto shutdown relay acting sporadically


hello i am trying to find where is the shut down relay loation on my 2000 caravan since it does not have the fuse box cover

Oct 04, 2009 | 2000 Dodge Grand Caravan

1 Answer

1995 Ram 1500. Just died? No votage to coil, no spark?


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.

Failure of the automatic shutdown relay is often shown as inexplicable stalling or refusal to start. The ASD can be triggered by a broken wire or short in another place, e.g. the fuel pump.  Hope this helps, and did you try to retrieve any DTC codes?? Be glad to help friend.

Jul 01, 2009 | 1995 Dodge Ram

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