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Looks like someone had that that gn/or wire before because there was a splice in it.. anyway I grounded it with ECM unplugged and the fuse did not blow.. so now what
You just need to prove the ecm is causing the over current.
Do you have everything else plugged in, fuel injectors, coil, fuel pump fuse in ?
Ecm unplugged and grd jumper in place.
When you put the ign on and switch to run the fuel pump should come on. Only turn the switch to run for a couple seconds or the fuel pump will continue to run. Normally the ecm would recognize the CKP is not showing the engine rotating and would shut the fuel pump off after 2 seconds by opening the ground.
I am not sure what that grounded GN/O wire means, but I do not believe you are done with that Y/GN wire.
Did you check the ACRs?
First it might be nice to know how those ACRs were wired, as many feel it too difficult and/or unnecessary to wire them according to the instructions. (that would be the Y/GN wire that you said had a bare spot, which may or may not be getting power from the ECM fuse.)
Look at the fuse block, see if there is a fuse in position 3E-3F. Also see if there is the V/GY wire connected to Pin 19 on the ECM. If so the ACRs were probably wired per instructions fot the ACR Overlay Wire Harness.
If that is the case you may want to check the ACRs by disconnecting the ACRs, hooking up the battery and seeing if the ECM fuse still blows. (ACR plugs should be accessible behind the top of the air cleaner. If the install was done properly they should be attached to a plastic stanchion attached to the top of the throttle body, and they should be getting power from the System Relay.)
I am not sure what that grounded GN/O wire means, but I do not believe you are done with that Y/GN wire.
Did you check the ACRs?
First it might be nice to know how those ACRs were wired, as many feel it too difficult and/or unnecessary to wire them according to the instructions. (that would be the Y/GN wire that you said had a bare spot, which may or may not be getting power from the ECM fuse.)
Look at the fuse block, see if there is a fuse in position 3E-3F. Also see if there is the V/GY wire connected to Pin 19 on the ECM. If so the ACRs were probably wired per instructions fot the ACR Overlay Wire Harness.
If that is the case you may want to check the ACRs by disconnecting the ACRs, hooking up the battery and seeing if the ECM fuse still blows. (ACR plugs should be accessible behind the top of the air cleaner. If the install was done properly they should be attached to a plastic stanchion attached to the top of the throttle body, and they should be getting power from the System Relay.)
Good luck.
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Im with you hoping whoever did the stage 4 wired the acrs correctly. I tried to find acrs in the schematics and they dont show until 2012 and they are controlled by the ecm so Im guessing his 09 ecm would have been replaced with a later model? The wire colors seem correct and I wonder where the v/gy wire goes in the ecm on his bike.
The reason I asked him to ground the Gn/O wire was to be able energize the system relay with the ecm connector disconnected from the ecm. With that test if the fuse stays intact the circuit would be good. Remove the jumper and plug the ecm back in and the fuse blows theres a problem with the ecm.
Ok, first off unground the GN/O wire, that is a power wire from the ECM to power the electromagnet in the system relay, the W/BK wire is the ground wire. ECM senses that the system relay is on via the ground of the W/BK wire. Grounding that wire completely disables the system relay. Next find out where the ACR's are connected, so that we can eliminate them. Likely you have a ground in the ECM and need to replace it. Each time you removed the ECM did you beside that the chassis of the ECM stayed on the plastic holder? This is what usually causes this issue as the base of the touring models ECM can cause a nasty ESD and cause the ground fault that you are seeing. You can disconnect the ECU, jumper from pin 71 to pin 27, turn on ignition and then Run/Stop to run to see if the fuse blows, if it does wiring if not ECU is the likely culprit.
Last edited by Zanthamos; Mar 3, 2021 at 02:55 AM.
... I tried to find acrs in the schematics and they dont show until 2012 and they are controlled by the ecm so Im guessing his 09 ecm would have been replaced with a later model?
The 09 bikes never came with ACRs (except CVOs and police bikes) so they will not be in the schematics.
Here is my schematic if the installer used the proper ACR Overlay Harness and followed the directions,
(And don't blame me, I am just the messenger).
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Harley did the upgrade they do have the c/gy wire into pin 19 as well. Everything seems to be where it should and the bike ran great for 2 years before it just died on the highway one day. Ill test the ECM and see what I come up with
The ignition fuse is powered up by the ignition switch. The Gray wire from the ignition fuse goes to connector 1 pin 3, from there to connector 22 pin 3 right hand controls. In the right hand controls the gray wire goes to the Off/Run switch and when the switch is on powers the W/BK wire that feeds the Start Button and goes back to connector 22 at pin 4 then to connector 1 at pin 6 then to the ECM pin 72 - 12V Run/ Stop Switch and to the System relay.
The ECM provide the ground for the System relay on the GN/O wire for 2 seconds and will shut off the grd if it does not have a signal from the CKP that the engine is rotating.
Ignition on and Kill switch to run and you will have power on the W/BK wire even with the System Relay pulled and ECM disconnected.
How do I go about testing out the ACRs visual inspection they look fine no wear spots on the wires and the plugs look solid.. only thing Ive found is that one y/gn wire that was rubbed to bare wire right before that acr plug on the rear
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