Question about 1997 Dodge Dakota

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97 Dodge Ram Pick up cranks ok engine won't run

Scanner will not communicate with computer . Check engine light does not come on . No ground to ASD relay from computer . Replaced cam
sensor .Has 5 volts to cam sensor . Unplug transmission solenoid . Has Batt power to A22 on computer black connector
Has ignition power to A2 on computer black connector

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  • Anonymous Mar 15, 2014

    Engine turns over but will not start. check engine light does not come on. no power to Coil Pac, crank sensor and fuel pump. new crank sensor, new fuel relays and new battery. When checking ground on sensors all three wire lite up as being grounded on crank sensor . volt meter comes up with 2 volts at TPS



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Try checking all the ground circuits comming out of the PCM. and its also not common for a ground driver in the PCM to fail on dodges. also i have seen crankshaft sensors short out and take out pcm communication. so i would start by unplugging any sensor that runs off the 5v supply until the pcm wil talk to the scanner. if you unplug a sensor and communication returns to scanner then replace the sensor. and dont forget to check for good power and ground at the data link conector and PCM

Posted on Jan 15, 2009


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1991 Dodge Dakota 2.5 liter 4 cyc blew fuse I replaced fuse no start have replaced pick up coil ,coil,plugs ,wires, cap,rotor,fues all good still no spark and no start helllppppp please!!!!!

Make sure battery has a full charge. Did you check primary voltage to ignition coil, engine cranking, dark green wire with orange tracer? Use a test light, is it hot? The voltage comes from asd relay, check voltage and ground circuits. The load side of relay is that line with arrowhead, that circuit is fuse protected and hot all the time. The control side of relay is the left side in diagram, has to have voltage and ground. The voltage appears to come from ignition switch on or cranking. Grounded by computer.
The distributor has a sensor in it that sends rpm signal to computer, w/o that signal the computer won't ground the asd relay and you get nothing. The asd relay sends voltage to several systems. Just my opinion. Any applicable trouble codes?
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I have a 2005 dodge neon that will crank but wont start. I have replaced the cam shaft sensor, crank sensor and the coil pack. Iam also not getting spark to the coil pack. Any suggestions?

Primary voltage to several systems, including the ignition coil, dark green wire with orange tracer. That voltage comes from asd relay. There is a fuse for asd relay. To check for voltage the engine has to cranking. The control side of asd relay, the computer has to ground it before it will energize. Did you check wiring circuits for cam and crank sensor connectors before replacing sensors? Are there any applicable trouble codes?
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2001 dodge neon 2.0 se what should the ohm reading be between asd relay ground to the computer ground wires?

You don't do an ohm check . Hook a test light to battery positive an have someone crank the engine over an touch the point part of test light to the PCM circuit at the relay socket . If the test light light's the PCM is grounding the circuit . Watch this video ! Fuel Pump Electrical Circuits Description and Operation ASD relay chrysler

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How do I fix my asd relay problems on my 2000 Dodge Ram 1500 pick up truck

Note the diagram. The left side of asd relay, line with arrowhead, is load side of relay, when the relay is energized that line moves to other terminal and it carries voltage to everything the asd relay controls. The control side of relay, right side, is that coil symbol, that side needs voltage and ground. The computer grounds the control side of relay if it sees proper signal from crank and cam sensors. Not only check those fuses, use a test lite check fuse circuit for voltage, as you can see, one fuse is hot all the time, the other goes hot with the key on.

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P1389 code on a 97 dodge ram 4x4 5.9. Replaced the pickup, ignition wire, asd relay and crankshaft sensor. Cap and button looked great and are only a couple months old. Truck will crank not start. Gas

are you sure that you changed the ASD relay? that code is for no signal from the ASD to the PCM. Check that you have constant 12v at the relay base and that you have switched voltage when the key is on at the relay base, then make sure you have continuity to ground at the relay base. If the relay clicks when the key is turned on then the internal coil is making and should be sending a signal to the PCM when the key is turned on.

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97 dodge ram van 5.9 litter cranks over and over but no start no spark

First thing to check is the ASD relay and voltage at the coil.

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Ok my brother has a 1997 dodge intrepid that wont start. Its not getting any fuel pressure and has no ignition to the spark plugs. (tested with spark tester) Plugged in an obd2 reader and it says its...

If you cannot read codes, it is most likely because the computer is not "turned on". What I mean by that is there are 3 battery feeds and 3 ground circuits to the Powertrain Control Module (PCM) If any of these circuits are not working, the PCM will not communicate with a scanner. It is like trying to turn on a lamp that is not plugged simply will not work. Don't go out and buy any parts or replace ANYTHING until you have your communication problem resolved. You will only be wasting time and MONEY otherwise. For instance, why on earth would anyone replace a crank sensor on an engine when the PCM is obviously malfunctioning? This can get VERY EXPENSIVE! Most likely, if you fix the faulty power or ground circuit that is stopping your PCM from communicating, you will fix your car.

I can help you test your circuits to find the problem, but the circuits are a little different between the 3.3L engine and the 3.5L engine and you did not mention which engine your vehicle is equipped with.

Please read these two articles and get back with me if you would like further assistance:

Where's The Fuse?

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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
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- 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
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If it cranks good but won't start, have a helper crank it while visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure. Also, check fuel injector pulse.
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Take your pick without any testing.

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