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


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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 in...it 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:

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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...


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Possible causes - ASD relay circuit is open or shorted
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Possible causes - ASD relay circuit is open or shorted
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crank sensor, ignition module or computer,

Take your pick without any testing.

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