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1996 EFI diag scan tool

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Old 01-25-2011, 11:40 AM
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Default 1996 EFI diag scan tool

I've read the many posts related to the scanalyzer and digital tech scan tool and can't find anything related to the older models. I have a solid engine light on and the bike won't start. It has weak spark on the front and no spark on the rear. It was idling before it shut off. I bought this bike new and have run it 60k miles and this is the first ECM related issue. How do I read the code? Is there a scanalyzer like tool for a 96 model similar to the digital tech? I calledhem and they do not offer anything. Thanks...scott.
 
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Old 01-25-2011, 12:50 PM
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I rigged up my own. Assuming this is an FLH,you didn't say,there's a 4 pin plug under your right side cover that's not plugged into any thing.This is where the scan tool plugs in. Reading left to right,top to bottom. I found 4 connector pins that fit the pins in that plug. Pins 3 and 4 have to be shorted together. Strip the ends of a short piece of wire and crimp onto connector pins and plug into 3 and 4 in the plug. Slide 2 more pins on 1 and 2 in the connector. Get a test light (any kind will do) and connect to pins 1 and 2. Turn your ignition switch on and you will see your test light blink 7 times with a pause in 2 consecutive orders. Your next sequence will be your trouble code sequence,count the pulses of light. If there's another code it will come up next after a pause,followed by the 7 pulses.
 
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Old 01-25-2011, 01:36 PM
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yes, it is a FLH and will give this a try. are test lamps or scanalyzers for the pre-delphi models available outside of harley?
 
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Old 01-25-2011, 02:09 PM
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Just so I'm clear. With the connector attached to the ECM, top means closest to the ECM. book shows pin 1 connected to ECM pin 10, pin 2 to ECM 34, pin 3 to ECM 15 and pin 4 to fuel pump relay.
 
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Old 01-25-2011, 02:19 PM
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You just need to short pin 3 and 4. Get a generic test light and hook up to pin 1 and 2. I tried to find a scanalyzer and was unsuccessful. The service manual tells you the codes.
 
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Old 01-25-2011, 03:18 PM
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i shorted out pins 3 and 4 and put a test lamp across 1 and 2...nothing on the test lamp. Connector pins are numbered with the connector lock at the bottom...1 - bottom left and 4 bottom right...2 top left and 3 top right. Pin 4 is from the fuel relay and has 12v on all the time. Now that I shorted 3 and 4, putting 12V on pin 3, I hope this is what you were referring too. If not, I guess I need a new ECM at a minimum and then look for a scanalyzer.
 
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Old 01-25-2011, 03:24 PM
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Originally Posted by rosenc
i shorted out pins 3 and 4 and put a test lamp across 1 and 2...nothing on the test lamp. Connector pins are numbered with the connector lock at the bottom...1 - bottom left and 4 bottom right...2 top left and 3 top right. Pin 4 is from the fuel relay and has 12v on all the time. Now that I shorted 3 and 4, putting 12V on pin 3, I hope this is what you were referring too. If not, I guess I need a new ECM at a minimum and then look for a scanalyzer.
Is your ignition switch in the on position? There's a small connector that is not attached to anything. That is where you scan not the ECM connector..
 

Last edited by Mike T; 01-25-2011 at 03:43 PM.
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Old 01-25-2011, 03:43 PM
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yes. ignition off. shorted pins 3 and 4. put a test light across pins 1 and 2. turned on ignition, fuel pump cycles, red light on for 4 sec. then off. after a few seconds engine light back on and stays on. nothing on the test light. it is a '96 flhtcui.
 
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Old 01-25-2011, 03:56 PM
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It's sounding like your ECM might have gone bad. It would be good if you could find a known working unit to swap it out. I would take it to the dealer before I bought one to be positive of your problem.
 
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Old 01-26-2011, 08:12 AM
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I hate loading it on the trailer just to pay the dealer to read the code for me.
 


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