Question about 1996 Dodge Ram

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1996 Dodge 1500 died while driving, no power to coil

No power to coil, no error codes able to be read, tested wiring harness with continuity tester, was fine, any suggestions?

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The auto shut down relay supplies the voltage for the coil and injectors. it is activated by the powertrain control module. the pcm will not activate it if it doesnt get a signal from the cam or crank sensor or if the vehicle dont start due to a lack of fuel it will shut the signal off.

Posted on Jan 03, 2009

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My 2005 jeep 4.0l has dtc 2302 , hesitates, replaced pcm still has code


replacing PCM is the last, why do that. which jeep,? wrangler? GC?
ECU is not bad and is almost always (GIGO) garbage in ,nets garbage out, now and for ever....
all most all errors are
1: input errors.
2: or bad output actuators or gee the engine it self.


now lets work
2302
ever see this>? or the FSM, the FSM book is way cheaper than any knee jerk ECU swap.. ouch.
http://engine-codes.com/p2302.html
out of FSM. actual
(F342) ASD OUTPUT CIRCUIT
(K19) COIL CONTROL 1 CIRCUIT OPEN
(K19) COIL CONTROL 1 CIRCUIT SHORTED TO GROUND
COIL
PCM (last ) never 1st ever....
so the coil pack is 4 pins and 3 coils, one one is hot key on.
the other 3 are 3 coils, coil 1 is bad,,
from a pure tech stand point its.
1: bad coil (open or shorted) bad wires, open or shorted or bad ECU.
we never condemn any ECU unless we do the simple lamp tests.
etc. case in point below.
here are the FSM steps, so easy to do.... (truncated, read your FSM)
1: coil 1 removed, connector.
key on is pin 2, 12v, if no fix that first. ( bad power distra. or fuse)
yes, 12v. so.
then, use a test lamp to pin 3 and ground
Pin 3 is COIL 1, !
crank car , does light flash? (any small 12v lamp works) 0.1 amps are less.
1: yes, flash PCM good, coil bad.
no?
test lamp tests continue....
2: stuck on lamp , wire is grounded out or bad PCM (pull PCM C2 conn, ? still tuck on?, yes, bad harness !
3: stuck lamp off? . this is harness wire cut or PCM bad.-
check continuity end to end on this wire. if good , bad ECU.
on a car with nice clean harnesses, no damage to conn?
its a bad coil.
the coil can in fact can be bench tested...
that to, is in the books.
(ohms tests, and make real spark) do so but do not exceed max dwell on the coil "smoke tested boom."( you need a pulse generator , or coil tester)
easy to make them .
there you go.... ECU last. for ever and ever.....

Sep 27, 2013 | Jeep Cars & Trucks

2 Answers

2004 dodge ram 1500 4X4 5.7 hemi - runs rough & dies at slow speeds but okay at fast speeds. diagnostic code P0157 o2 circuit low voltage bank 2 sensor 2 is shown. how to fix?


Usually the code means the O2 sensor is faulty.
But in your case it could mean there is a problem with the fuel system on bank two. Bank two is the side with cylinder two.
A low voltage reading from the sensor would mean that side is very lean if the sensor is working and the sensor in front of the catalytic converter shows the same readings.

Feb 01, 2013 | Cars & Trucks

1 Answer

Po748 can tcc solenoid or vehicle speed sensor cause this code


One question? Did you clear the codes out of the system with a scanner? I believe that's the only way to do it now,unlike the old days when you could rest by disconnecting the battery. Hope this helps.

Apr 22, 2010 | 2001 Dodge Ram 1500 Truck 2WD

2 Answers

96 Dodge Dakota .....NO SPARK


you should have power on one terminal of the coil connector when cranking engine,i prefer using a test light..put the lead of your test light on battery positive and check other coil connector terminal..it should flash/pulse..if it is,you need an ignition coil..if not,you may have an engine controller problem..also check harness near controller and fuseblock for corroded wires..controller may not be powered up properly

May 29, 2009 | 1996 Dodge Dakota

1 Answer

Two dead cylinders no spark on 1 nor 6 cylinders


Based on your readings, the fuel trim of -33 shows that it is running rich on that bank. Disconnect the coil on number one cylinder. With a 12 volt test light connected to ground, probe one of the two wires (engine running). One wire should be hot all the time, then connect the test light to a positive source (battery B+) and probe the other wire. The other sould be flashing on and off while running. The PCM provides ground to the circuit to fire the coils. If you don't have a pulsing light then the PCM circuit is faulty, if no constant power than the coil power source is in question. Don't attempt to fire the coil for testing without a load attached (spark plug) this burns out the driver in the PCM. Check continuity of the driver wire from PCM to the coil, if it is good and the other wire has power then the driver in the PCM is bad and a new PCM is what it will need. I hope this helps.

Apr 27, 2009 | 2004 Dodge Ram 1500

1 Answer

We replaced the crank sensor and cam sensor on a new 5.2 engine in a 1998 Dodge Durango. We checked and rechecked the connections and still no spark.


check the wiring harness at the coil,sometimes that plug will get loose or dirty resulting in a no spark.
The only ign system parts are the crank sensor,cam sensor,dist,dist cap,rotor,spark plugs,wires,and coil,and the ecm which controls all of these,is there a check engine light on?
run a scan tool to check for stored codes or system events stored in the ecm.

Jan 09, 2009 | 1996 Dodge Ram 1500 Club Cab

1 Answer

1996 Dodge Ram Factory Trailer Wiring Schematic


all you need is a cheap continuity tester, any one to help tap on the brakes..7pin is just like the 4 pin w/extra power wire for acc.lites,electric brakes.when you buy the 7pin rec.,comes w/wiring schematic standard to all trailer rec.- you can do it..kev-mn.

Dec 10, 2008 | 1995 Dodge Dakota

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