ACR Problem
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Joined: Feb 2023
Posts: 57
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From: Houston Texas
ACR Problem
I have been working this hard to start problem and after exhausting all other options I am back to the ACR's I suspect one of them is bad due to the hard to crank over/start issue.. Does anyone have the data referencing the voltage required to activate the ACR? Ive looked and either I am missing it or its not there. I want to test both the harness on the bike and the ACR its self by using voltage generator to generate operating voltage and put a meter on the connectors at the harness to verify operating voltage to eliminate or find a possible short in the harness. I have tried the "tissue" test lol and audible test but just to much noise and no positive indication of go or no go.
Thanks in advance.
Thanks in advance.
Stellar HDF Member
Joined: Mar 2016
Posts: 2,285
Likes: 965
From: Eastern NC
System power 7.5 amp fuse protects this circuit. If you check that voltage I'm sure you will find 12v. System Power comes from the BCM
Just remember when trouble shooting your ACR's when you measure voltage it is just potential and doesn't guarantee that the circuit has the ability to carry current. I use a 12v test light to verify the circuit can carry current.
The ACR's look like a bitch to get out of the heads.
Just remember when trouble shooting your ACR's when you measure voltage it is just potential and doesn't guarantee that the circuit has the ability to carry current. I use a 12v test light to verify the circuit can carry current.
The ACR's look like a bitch to get out of the heads.
Thread Starter
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Advanced
Joined: Feb 2023
Posts: 57
Likes: 15
From: Houston Texas
System power 7.5 amp fuse protects this circuit. If you check that voltage I'm sure you will find 12v. System Power comes from the BCM
Just remember when trouble shooting your ACR's when you measure voltage it is just potential and doesn't guarantee that the circuit has the ability to carry current. I use a 12v test light to verify the circuit can carry current.
The ACR's look like a bitch to get out of the heads.
Just remember when trouble shooting your ACR's when you measure voltage it is just potential and doesn't guarantee that the circuit has the ability to carry current. I use a 12v test light to verify the circuit can carry current.
The ACR's look like a bitch to get out of the heads.
Grand HDF Member
Joined: Jul 2007
Posts: 3,723
Likes: 8,459
From: Bates County MO
12V System power (V/GN wire) feeds both ACRs and the Purge Solenoid. The ECM controls the ACRs (LT GN/R) by grounding pin 4 of the grey connector on the ECM.
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Joined: Feb 2023
Posts: 57
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From: Houston Texas
cool figured out where to get the wiring diagrams, but ran into another wall says in the pins 1+2, is enable and system power, I wave a signal voltage simulator here and I want to take the existing acr and basically power it up so and see if I can actuate they solenoid moving the piston its look like a pretty simple one but now is there a constant 12 volts to pin1 to power it and 5 volts to actuate it? not enough info
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