2009 Ultra - 'limp home' mode - Harley Davidson Forums: Harley Davidson Motorcycle Forum
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post #1 of 31 (permalink) Old 11-21-2012, 10:07 AM Thread Starter
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2009 Ultra - 'limp home' mode

Probably not a big deal but would like to investigate - my Ultra has 26K miles with no issues. Yesterday while cruising on the freeway at 75mph she does into 'limp home' mode, and check engine light comes on. Pull over, shut it off, sit for a minute, restart, no problem, no light, all is good, but it was a little dis-heartning. An electronic anomoly?

If anyone has a link to previous posts concerning - the procedure to pull engine codes and also what the codes identify, I know I've seen/read both here in the recent past but I can't seem to find them in search function, I would appreciate it. I will also dig out the Service Manual tonight to see if my questions are ansered in it (I'm sure they are). But since I was on here now, thought I would give it a shot while I'm in the office.

Hope everyone has a great Thanksgiving - remember our troops with a toast and a prayer! Thanks - Mike


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post #2 of 31 (permalink) Old 11-22-2012, 06:26 AM
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If you didn't find it yet go to the electrical section stickys.

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post #3 of 31 (permalink) Old 11-22-2012, 06:36 AM
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do you have the elec. diagnostic manual for '09 p/n 99479-09. i'll look & see what i can find/ any codes?

Last edited by eagle1; 11-22-2012 at 06:38 AM. Reason: more info
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post #4 of 31 (permalink) Old 11-22-2012, 07:00 AM
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A Harley Davidson Service Manual is a manditory Accesorry for a Harley Owners .

good luck there should be alot info in the Forum area


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post #5 of 31 (permalink) Old 11-22-2012, 07:33 AM
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WOW test press & hold the trip odometer reset switch, then turn ign. sw. to IGNITION release trip odometer reset switch. background lighjting should illuminate, gage needle should sweep its full range of motion, and indicator lamps should ( check eng., low fuel, battery & security) should illuminate.
if test fails, check battery,ground, trip odometer reset switch, and accessory wireing.
to clear DTC .
1. to clear diag. mode. turn ign. sw. off.
press & hold the trip meter reset sw. for more than 5 seconds to display available modules, release.
2. press the trip[ odometer reset sw. to chose the module.
3. press & hyold the trip odometer reset switch for more than 5 sec. to display the DTC release.
4. press & hold the trip meter reset switch for more than 5 sec. to clear the
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post #6 of 31 (permalink) Old 11-22-2012, 07:35 AM
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THE dtcS FOR THE SELECTED MODULE
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post #7 of 31 (permalink) Old 11-22-2012, 07:36 AM
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Post your codes & i'll look them up.
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post #8 of 31 (permalink) Old 11-22-2012, 07:46 AM
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I would check the electronic throttle wiring connector inside the grip. Disconnect the connector, apply dialectric grease to the connection and re-plug it back together. That connection has caused problems in the past as has the '09 main wiring harness.

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post #9 of 31 (permalink) Old 11-22-2012, 08:12 AM
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Had this happen several times on my 09 Ultra, ended up having to replace the ECU, Thanks God for Extended Warranty ..

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post #10 of 31 (permalink) Old 11-22-2012, 11:13 AM Thread Starter
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Thanks guys - will get on it tomorrow after my tryptophan comma has subsided -

Couldn't wait -

I found Daves Sticky under 'touring' - Under 'P' I got codes:

P1511 - EFI Power management Module
P2135 TPS Correlation error

No other codes in other ares of the diag module -

Now what? Any suggestions? I'm thinking let it ride unless it reoccurs - suggestions?


'When if's and but's are candy and nuts, oh what a world it will be"

THE MAIN THING... IS TO KEEP THE MAIN THING THE MAIN THING.

Last edited by MikeYork5; 11-22-2012 at 01:29 PM.
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