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LOOKING FOR PCM WIRING DIAGRAM FOR 94 FLEETWOOD 5.7L

NEED IGNITION COIL SCHEMATIC WIRING DIAGRAM

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1 Answer

Wiring diagram 1992 Fleetwood southwind motorhome complete wiring scamatics


Go to Fleetwood's site at the link below, and select model and year to download the manual. If it does not have wiring schematic, contact Fleetwood for assistance. RV Owners Manuals

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Hi, looking for a ECM wiring diagram on a Chevy Captiva 3.2 2007. Please


Your question is a little broad. Can you tell us the problem? If your having a problem with ignition or fuel system, something like that, I can help with wiring diagrams. If you need voltage and ground for pcm, I can't help with that. Can you narrow the problem down, a little?

To post a diagram of every little wire that comes off the pcm and show where it goes, is too much for me.

Sep 20, 2016 | Chevrolet Captiva Cars & Trucks

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I changed the crankshaft senaor and the distributor and the car would not start no current to the spark plugs


What make , model an year vehicle ? could be ignition control module , coil , PCM - engine computer ! You need to test for battery voltage at the coil , ignition module an is the PCM turning it off an on ? you could go to www.bbbind.com to look at a wiring diagram to see what all is involved in your vehicles ignition system ! pull the distributer cap a crank the engine , does the rotor turn ?

Apr 29, 2015 | Cars & Trucks

1 Answer

My 2003 rendevous is not charging, it has a neww battery and the alternator is good. What could be going on?


Check the fuses first. Ignition and PCM fuses. Check the big wire from the alternator to the battery. Check battery clamps. On any of these corrosion could and will cause no charging. After that, you need a wiring schematic. You'll need to check wires from the PCM to the alternator. The PCM is what turns the alternator on. If all those wires and cables check out good, you looking at replacing the PCM. 2003 is year specific. Meaning you can only put a 2003 PCM in it. The PCM also has to be programmed for your vehicle.

Feb 24, 2015 | 2003 Buick Rendezvous

1 Answer

Miss fireing


Hi there:

P0351 Ignition Coil A Primary/Secondary Circuit Malfunction
and
P0352 Ignition Coil B Primary/Secondary Circuit Malfunction

and
P0354 Ignition Coil D Primary/Secondary Circuit Malfunction


Work for all coil codes. The COP (coil on plug) ignition system is what is used on most modern engines. There is an individual coil for each cylinder that is controlled by the PCM (powertrain control module). It eliminates the need for spark plug wires by putting the coil right above the sparkplug. Two wires are dedicated to each coil. One is a battery feed usually from the power distribution center. The other wire is the coil driver circuit from the PCM. The PCM grounds/ungrounds this circuit to activate or deactivate the coil. The coil driver circuit is monitored by the PCM for faults



If an open or a short is detected in the driver circuit for coil number 1, a P0351 may set. Also, depending on the vehicle, the PCM may also shut down the fuel injector to the cylinder also.


Symptoms of a P0351 P0352 and P0354 DTC may include:
MIL (Malfunction indicator lamp) illumination
Engine misfire may be present or intermittent

Potential causes of a P0351 , P0352 and P0354 code include:
Short to voltage or ground on COP driver circuit
Open on COP driver circuit
Loose connection at coil or broken connector locks
Bad Coil (COP)
Faulty Powertrain Control Module


Possible Solutions:
Is the engine misfiring presently? If not, the problem is likely intermittent. Try wiggle testing the wiring at the #1 coil and along the wiring harness to the PCM. If manipulating the wiring causes the misfire to surface, repair the wiring problem. Check for poor connection at the coil connector. Verify the harness isn't misrouted or chafing on anything. Repair as necessary


If the engine is misfiring presently, stop the engine and disconnect the #1 coil wiring connector. Then start the engine and check for a driver signal to the #1 coil or #2. Using a scope will give you a visual pattern to observe, but since most people don't have access to one there's an easier way. Use a Voltmeter in AC Hertz scale and see if there's a Hz reading of between 5 and 20 or so that indicates the driver is working. If there is a Hertz signal, then replace the #1 ignition coil. It's likely bad. If you don't detect any frequency signal from the PCM on the ignition coil driver circuit indicating the PCM is grounding/ungrounding the circuit (or there is no visible pattern on the scope if you have one) then leave the coil disconnected and check for DC voltage on the driver circuit at the ignition coil connector. If there is any significant voltage on that wire then there is a short to voltage somewhere. Find the short and repair it.


If there is no voltage on the driver circuit, then turn the ignition off. Disconnect the PCM connector and check the continuity of the driver between the PCM and the coil. If there is no continuity repair the open or short to ground in the circuit. If continuity is present, then check for resistance between ground and the ignition coil connector. There should be infinite resistance. If there isn't, repair the short to ground in the coil driver circuit


NOTE: If the ignition coil driver signal wire is not open or shorted to voltage or ground and there is no trigger signal to the coil then suspect a faulty PCM coil driver. Also keep in mind that if the PCM driver is at fault, there may be a wiring problem that caused the PCM failure. It's a good idea to do the above check after PCM replacement to verify there won't be a repeat failure. If you find that the engine isn't misfiring, the coil is being triggered properly but P0351 is continually being reset, there is the possibility that the PCM coil monitoring system may be faulty.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 07, 2012 | 2004 Ford Taurus

1 Answer

Looking for a Wiring diagram for the ignition coil on a Cadillac fleetwood 1991


There is not much to a wiring diagram for the ignition coil on that vehicle. The coil connections are all made inside the distributor. One ignition feed wire and the rest is self-conained within the distributor housing.

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May 28, 2012 | 1991 Cadillac Fleetwood

1 Answer

I changed the timing chains on a 98 Lincoln navigator and i have now P0355 ignition coil e primary/secondary circuit


P0355 Ignition Coil E Primary/Secondary Circuit Malfunction
The COP (coil on plug) ignition system is what is used on most modern engines. There is an individual coil for each cylinder that is controlled by the PCM (powertrain control module). It eliminates the need for spark plug wires by putting the coil right above the sparkplug. Two wires are dedicated to each coil. One is a battery feed usually from the power distribution center. The other wire is the coil driver circuit from the PCM. The PCM grounds/ungrounds this circuit to activate or deactivate the coil. The coil driver circuit is monitored by the PCM for faults

If an open or a short is detected in the driver circuit for coil #5, a P0355 may set. Also, depending on the vehicle, the PCM may also shut down the fuel injector to the cylinder also.

Symptoms of a P0355 DTC may include:
MIL (Malfunction indicator lamp) illumination
Engine misfire may be present or intermittent

Potential causes of a P0355 code include:
Short to voltage or ground on COP driver circuit
Open on COP driver circuit
Loose connection at coil or broken connector locks
Bad Coil (COP)
Faulty Powertrain Control Module

Possible Solutions:
Is the engine misfiring presently? If not, the problem is likely intermittent. Try wiggle testing the wiring at the #5 coil and along the wiring harness to the PCM. If manipulating the wiring causes the misfire to surface, repair the wiring problem. Check for poor connection at the coil connector. Verify the harness isn't misrouted or chafing on anything. Repair as necessary

If the engine is misfiring presently, stop the engine and disconnect the #5 coil wiring connector. Then start the engine and check for a driver signal to the #5 coil. Using a scope will give you a visual pattern to observe, but since most people don't have access to one there's an easier way. Use a Voltmeter in AC Hertz scale and see if there's a Hz reading of between 5 and 20 or so that indicates the driver is working. If there is a Hertz signal, then replace the #5 ignition coil. It's likely bad. If you don't detect any frequency signal from the PCM on the ignition coil driver circuit indicating the PCM is grounding/ungrounding the circuit (or there is no visible pattern on the scope if you have one) then leave the coil disconnected and check for DC voltage on the driver circuit at the ignition coil connector. If there is any significant voltage on that wire then there is a short to voltage somewhere. Find the short and repair it.

If there is no voltage on the driver circuit, then turn the ignition off. Disconnect the PCM connector and check the continuity of the driver between the PCM and the coil. If there is no continuity repair the open or short to ground in the circuit. If continuity is present, then check for resistance between ground and the ignition coil connector. There should be infinite resistance. If there isn't, repair the short to ground in the coil driver circuit

NOTE: If the ignition coil driver signal wire is not open or shorted to voltage or ground and there is no trigger signal to the coil then suspect a faulty PCM coil driver. Also keep in mind that if the PCM driver is at fault, there may be a wiring problem that caused the PCM failure. It's a good idea to do the above check after PCM replacement to verify there won't be a repeat failure. If you find that the engine isn't misfiring, the coil is being triggered properly but P0355 is continually being reset, there is the possibility that the PCM coil monitoring system may be faulty.

Test, check it and keep us updated.

Jul 24, 2011 | 1997 Ford Expedition

2 Answers

Ignition Wiring Schematic


Check with npd.com (nationl parts depot) They have what you need.
bluesryder@live.com

Apr 08, 2009 | 1979 Pontiac Firebird

2 Answers

I need a wiring diagram for the pcm.


Are you looking for a specific wire found there or just the entire schematic?

Aug 02, 2008 | 1995 Chevrolet Cavalier

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