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[cvo-05]

   I have this check engine light on...Code P1654..I have erased it several times, but as soon as you start bike it comes right back on...The bike runs fine..Just this damn light..Anybody know how to clear it...Thanks, Frank

[Twolanerider]

If you clear it and the code returns it's not a historical code to just be cleared.  It's an actual ongoing fault that needs to be fixed.  It'll keep right on recurring until the cause is fixed.  Rather like repeatedly washing all the bugs off a broken windscreen.  No matter how many times you clear off the bugs it's still busted underneath.....

[grc]

As best I can determine, P1654 concerns a tachometer signal problem.  It's not even listed in my 2005 Electrical and Diagnostic Manual btw.  What model and year bike are you dealing with?

If you want to trace circuits, that code is associated also with terminal 3 of the ECM, which involves the tach.  Wish I could find more, but like I said it's not even in the manual I have.

Jerry

[cvo-05]

It's a 2005 SEEG...I don't know where to look for the problem..The Tach works fine..bike runs fine ??

[Twolanerider]

As best I can determine, P1654 concerns a tachometer signal problem.  It's not even listed in my 2005 Electrical and Diagnostic Manual btw.  What model and year bike are you dealing with?

If you want to trace circuits, that code is associated also with terminal 3 of the ECM, which involves the tach.  Wish I could find more, but like I said it's not even in the manual I have.

Jerry

A banana that belonged to a friend had that code here a few years ago Jerry.  Was a bitch to find.  Ended up being some fretting at the pin in the ECM plug.  It was come and go for awhile then persistent.  Solved with a new pin and a little dielectric grease.

[grc]

A banana that belonged to a friend had that code here a few years ago Jerry.  Was a bitch to find.  Ended up being some fretting at the pin in the ECM plug.  It was come and go for awhile then persistent.  Solved with a new pin and a little dielectric grease.

    Good info Don, and I wouldn't be surprised if this or something similar is cvo-05's problem.  Since the tach works, the code might just be indicating the circuit resistance or voltage is slightly out of the normal parameters.

cvo-05, if you're familiar with the harness connection to the ECM, you might want to just try disconnecting it and then reconnecting it, clear the code, then fire the bike up and see if it still comes back.  Of course I have no way of knowing your technical expertise with this sort of thing, so if you aren't comfortable messing with wiring and changing terminals you could always take the information you have so far to a technician.  Good luck.

Jerry

[cvo-05]

I did try and unplug the connection and I greased it...I have a Dyno jet tuner in there I'll unplug that and look for a bent pin in both of them...Thanks, It's making me crazy

[Twolanerider]

I did try and unplug the connection and I greased it...I have a Dyno jet tuner in there I'll unplug that and look for a bent pin in both of them...Thanks, It's making me crazy

Just to fully isolate one from the other remove the Power Commander and plug the ECM connector directly back in to the ECM.  Then clear the code and see if the problem stays gone or recurs.

[cvo-05]

I tried that still the same...when I have time i'll check the pins

[hogasm]

Lt green/violet wire is your data communication wire

follow its path with an ohm meter...a digital one, not a buzzer

[Twolanerider]

I did try and unplug the connection and I greased it

Just another thought, did you remove, clean and reconnect the plug at both ends?  Both the ECM (easier to get to) and the tach?

[cvo-05]

I looked at the pins in my ecm all look fine...greased them...disconnected the plug at the tach looks fine greased still have the light on. Ugh